Merge pull request #241 from bvandeusen/dev

Milestone 318 step 8 — extension CalVer, and the #3190 mitigation's first main build

.env.example

@@ -1,103 +1,24 @@
-# FabledCurator configuration.
-#
-# Copy to `.env` and edit before your first production start:
-#
-#     cp .env.example .env
-#
-# Only the two values under CHANGE THESE actually need your attention. The
-# rest have working defaults baked into docker-compose.yml and are listed
-# here so you know they exist, not because you have to set them.
-#
-# Almost nothing else lives here on purpose. FabledCurator is configured from
-# its own Settings UI, backed by the database — no restart, no YAML. If you
-# are looking for where to set an import path, a download schedule or an ML
-# threshold, it is in the app, not in this file.
-
-
-# ---------------------------------------------------------------------------
-# CHANGE THESE
-# ---------------------------------------------------------------------------
-
-# The Postgres password. docker-compose.yml falls back to a published default
-# (`fabledcurator_dev`) so that `docker compose up` works with no config at
-# all — which is exactly why you must not leave it at that on a real install.
-# It is the credential protecting your stored platform session cookies.
-DB_PASSWORD=
-
-# Sets Quart's app.secret_key. Today it signs nothing: FabledCurator has no
-# login and uses no session cookies, so no value here is protecting anything
-# right now. Set it anyway. It is required at boot rather than defaulted so
-# that the day something session-backed does land, no instance is already
-# running on a value published in this file.
-#
-#     openssl rand -hex 32
-SECRET_KEY=
-
-
-# ---------------------------------------------------------------------------
-# FIRST BOOT ONLY — then delete this line
-# ---------------------------------------------------------------------------
-
-# FabledCurator encrypts your stored platform credentials with a Fernet key it
-# keeps at /images/secrets/credential_key.b64 — inside the ./images bind mount,
-# so it outlives the container. On a brand-new install that file does not exist
-# yet, and the app REFUSES TO START rather than quietly create one:
-#
-#     MissingCredentialKey: Fernet key file not found at
-#     /images/secrets/credential_key.b64
-#
-# That refusal is deliberate. Auto-creating a key is indistinguishable from the
-# disaster case — a restore that brought the database back but lost
-# ./images/secrets — and there it would mint a key that cannot decrypt anything,
-# leaving an instance that looks healthy while every paywalled download fails.
-# So the choice is yours to make explicitly, once.
-#
-# Set this for your first `up`, watch the container come up, then DELETE THE
-# LINE. Leaving it set disarms the protection permanently, on an instance that
-# by then has credentials worth protecting.
-#
-# BACK UP ./images/secrets/ ALONGSIDE YOUR DATABASE. The key is the only thing
-# that can read your stored credentials; a database restored without it needs
-# every credential re-entered by hand.
-CURATOR_BOOTSTRAP_NEW_KEY=1
-
-
-# ---------------------------------------------------------------------------
-# Optional — defaults are fine
-# ---------------------------------------------------------------------------
-
-# Host port the UI is published on. The container always listens on 8080;
-# this is only the left-hand side of the port mapping.
-PORT=8080
-
-# DEBUG | INFO | WARNING | ERROR
-LOG_LEVEL=INFO
-
-# Postgres identity. Change these only if you are pointing at a database you
-# manage yourself — the bundled postgres service is created with whatever is
-# set here, so changing them after the first start will not rename anything.
+# Database
 DB_USER=fabledcurator
+DB_PASSWORD=changeme_use_a_real_password
+DB_HOST=postgres
+DB_PORT=5432
 DB_NAME=fabledcurator
 
-# Set by docker-compose.yml to reach the bundled services. Override only when
-# running Postgres or Redis outside this stack.
-# DB_HOST=postgres
-# DB_PORT=5432
-# CELERY_BROKER_URL=redis://redis:6379/0
-# CELERY_RESULT_BACKEND=redis://redis:6379/0
+# Redis / Celery
+CELERY_BROKER_URL=redis://redis:6379/0
+CELERY_RESULT_BACKEND=redis://redis:6379/0
 
+# App
+# Generate with: openssl rand -hex 32
+SECRET_KEY=changeme_32_byte_hex_secret
 
-# ---------------------------------------------------------------------------
-# There is no authentication variable here, and that is not an omission
-# ---------------------------------------------------------------------------
-#
-# FabledCurator has no login, no accounts and no permission model. Anything
-# that can reach PORT is an administrator and can read the platform session
-# cookies the app stores for Patreon, SubscribeStar and Pixiv.
-#
-# Bind it to a trusted network. See "Before you expose it" in README.md and
-# the deployment posture section of SECURITY.md.
-#
-# The Firefox extension's API key is NOT configured here — it is generated
-# automatically on first use and shown under Settings → Maintenance, where you
-# can also rotate it.
+# Extension API key — used in FC-3, lands later but reserved now
+# Generate with: openssl rand -hex 32
+EXTENSION_API_KEY=
+
+# Logging
+LOG_LEVEL=INFO
+
+# Deployment posture: plain HTTP (no TLS in the app; reverse proxy if needed)
+# See docs/superpowers/specs/2026-05-13-fabledcurator-merge-design.md §2.1

.forgejo/workflows/baseline.yml

@@ -1,349 +0,0 @@
-
-# TEMPORARY — milestone 328. Delete once the baseline has shipped and settled.
-#
-# Collapsing 89 alembic revisions into one baseline has exactly one dangerous
-# failure: the baseline does not reproduce the schema the chain produced, and
-# the divergence surfaces later, on the operator's live data, in whatever
-# migration comes next.
-#
-# So the comparison happens in CI, against a throwaway pgvector Postgres, where
-# nothing is at risk. It answers one question: does `upgrade head` on the
-# collapsed tree produce the same schema as `upgrade head` on the full chain?
-#
-# The chain is read out of GIT, not the working tree, which is what lets this
-# keep working now that the revisions are deleted — `chain_ref` names a commit
-# that still carries 0001..0089. That is the whole reason this is a workflow
-# rather than a script someone ran once.
-#
-# WHAT THIS CANNOT SEE, and it matters: the comparison is of SCHEMA. Migrations
-# 0002 and 0003 also INSERTED rows (the import_settings and ml_settings
-# singletons), and the application reads those with scalar_one(), which raises
-# on an empty result. A baseline that omitted them would produce an identical
-# schema, pass this check with a perfect diff, and crash a fresh install on its
-# first settings access. Only running the app against a new database finds
-# that class of defect. Do not read a green run here as "the baseline is
-# correct" — read it as "the schema is correct".
-#
-# Autogenerate now emits nearly all of the baseline unaided, which was NOT true
-# before #3275 put the previously migration-only objects onto the models — the
-# HNSW index with its opclass, the COALESCE expression index, the partial
-# unique indexes, 107 server_defaults, the enum CHECKs. An earlier attempt at
-# this squash was reverted precisely because the generator dropped them all
-# silently. What still needs hand-adding is only what cannot live in a model:
-# the two CREATE EXTENSION statements, the two seed rows, and the pgvector
-# import the generator forgets to write.
-name: Alembic baseline
-
-on:
-  workflow_dispatch:
-    inputs:
-      chain_ref:
-        description: 'Commit/tag carrying the full 0001..0089 chain (pinned: the tree no longer has it)'
-        type: string
-        default: '725bf15'
-      mode:
-        description: 'chain = compare against this tree''s migrations; models = compare against a schema built from the MODELS'
-        type: string
-        default: 'chain'
-
-jobs:
-  compare:
-    runs-on: python-ci
-    container:
-      image: git.fabledsword.com/bvandeusen/ci-python:3.14
-    env:
-      DB_USER: fabledcurator
-      DB_PASSWORD: ci_integration
-      DB_PORT: "5432"
-      DB_NAME: fabledcurator_test
-      SECRET_KEY: ci_integration_placeholder
-    services:
-      postgres:
-        image: pgvector/pgvector:pg16
-        env:
-          POSTGRES_USER: fabledcurator
-          POSTGRES_PASSWORD: ci_integration
-          POSTGRES_DB: fabledcurator_test
-        options: >-
-          --health-cmd "pg_isready -U fabledcurator"
-          --health-interval 10s
-          --health-timeout 5s
-          --health-retries 10
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          # Full history is the point: `chain_ref` is read out of git, so a
-          # shallow clone would not have the revisions to compare against.
-          fetch-depth: 0
-
-      - name: Resolve the Postgres service and install deps
-        run: |
-          set -eux
-          # Same service-IP dance as ci.yml's integration job; see the long
-          # comment there for why the job name must stay separator-free.
-          PG=$(docker ps --filter "name=compare" --filter "ancestor=pgvector/pgvector:pg16" -q | head -n1)
-          test -n "$PG"
-          PG_IP=$(docker inspect -f '{{range .NetworkSettings.Networks}}{{.IPAddress}}{{end}}' "$PG")
-          test -n "$PG_IP"
-          echo "PG_CONTAINER=$PG" >> "$GITHUB_ENV"
-          echo "DB_HOST=$PG_IP" >> "$GITHUB_ENV"
-          # Socket probe in python, not bash's /dev/tcp — these steps run under
-          # `sh -e`, where that path does not exist. Same fix and same reasoning
-          # as ci.yml's integration job; see the comment there.
-          pg_ready=""
-          for i in $(seq 1 60); do
-            if python -c "import socket,sys; s=socket.socket(); s.settimeout(2); sys.exit(0 if s.connect_ex(('$PG_IP', 5432)) == 0 else 1)"; then
-              pg_ready=1
-              break
-            fi
-            sleep 2
-          done
-          if [ -z "$pg_ready" ]; then
-            echo "postgres at $PG_IP:5432 did not accept a connection within 120s"
-            exit 1
-          fi
-          if command -v uv >/dev/null 2>&1; then
-            uv pip install --system -r requirements.txt
-          else
-            pip install -r requirements.txt
-          fi
-
-      # DB 1: the 87-revision chain, read out of git at `chain_ref`.
-      #
-      # A git worktree rather than a checkout, so the current tree — which is
-      # what we are testing — is left completely alone.
-      - name: Build the schema the OLD chain produces
-        env:
-          CHAIN_REF: ${{ github.event.inputs.chain_ref }}
-          THIS_SHA: ${{ github.sha }}
-        run: |
-          set -eux
-          docker exec "$PG_CONTAINER" createdb -U fabledcurator fc_chain
-          # Blank means "the chain in this ref", which is what you want while
-          # the chain is still intact — comparing the models against a PINNED
-          # older commit reports every migration written since as a difference.
-          # Pin it only after the collapse, when the tree no longer has them.
-          git worktree add /tmp/chain "${CHAIN_REF:-$THIS_SHA}"
-          ls /tmp/chain/alembic/versions/*.py | wc -l
-          cd /tmp/chain
-          DB_NAME=fc_chain alembic upgrade head
-          cd -
-          docker exec "$PG_CONTAINER" pg_dump -U fabledcurator --schema-only \
-            --no-owner --no-privileges -d fc_chain > chain.sql
-          wc -l chain.sql
-          # Emit the dump itself, checksummed, for local analysis. Reconciling
-          # the models against the deployed schema (#3275) needs the ACTUAL
-          # schema, not an inference from a diff — parsing table context out of
-          # unified-diff hunks drops every table whose CREATE TABLE line falls
-          # outside a hunk, which silently under-reports.
-          #
-          # base64 + sha256 for the same reason as the candidate: a plain cat
-          # of a file this size was truncated mid-line by the runner with the
-          # step still green (run 4964).
-          set +x
-          B64=$(base64 -w 120 chain.sql)
-          echo "===== BEGIN CHAIN SCHEMA (base64) ====="
-          echo "$B64"
-          echo "===== END CHAIN SCHEMA ====="
-          echo "chain-sha256: $(sha256sum chain.sql | cut -d' ' -f1)"
-          echo "chain-bytes:  $(wc -c < chain.sql)"
-          set -x
-
-      # A candidate baseline, autogenerated from the models against an EMPTY
-      # database so every table shows up as a create. Printed for a human to
-      # finish — it will be missing the three raw-SQL items named at the top.
-      #
-      # Gated on the TREE, not on a workflow input. A `type: boolean` input
-      # read back as `github.event.inputs.generate == 'true'` silently
-      # evaluated false on this runner (run 4960 skipped this step entirely
-      # with no diagnostic) — the same `github.event.inputs` typing quirk
-      # build.yml already works around. The file count is the real question
-      # anyway: there is nothing to generate once the chain is collapsed.
-      - name: Autogenerate a candidate baseline
-        run: |
-          set -eux
-          if [ "$(ls alembic/versions/*.py | wc -l)" -le 1 ]; then
-            echo "already collapsed — nothing to generate"
-            exit 0
-          fi
-          docker exec "$PG_CONTAINER" createdb -U fabledcurator fc_gen
-          # Hide the existing revisions so alembic sees an empty history and
-          # emits the whole schema rather than a delta.
-          mkdir -p /tmp/versions_held
-          mv alembic/versions/*.py /tmp/versions_held/ 2>/dev/null || true
-          DB_NAME=fc_gen alembic revision --autogenerate -m "baseline" || true
-          # Printed rather than uploaded: ci-requirements.md records that this
-          # runner cannot do actions/upload-artifact@v4+, and the repo dropped
-          # the action entirely in 2026-05, so the job log is the retrieval
-          # channel actually proven here.
-          #
-          # base64, not the raw file. A plain `cat` of the ~33KB candidate was
-          # TRUNCATED MID-LINE by the runner on run 4964 — it stopped inside
-          # `sa.Column('mime', sa.String(length=128)` and carried straight on
-          # to the next traced command, with the step still green. A silent
-          # cut in the middle of a schema definition is the worst possible
-          # failure here, because the truncated text still looks like a
-          # plausible file.
-          #
-          # base64 at a fixed narrow width gives many short lines instead of
-          # few long ones, and — the actual point — a checksum and a line
-          # count that make truncation DETECTABLE rather than invisible.
-          set +x
-          F=$(ls alembic/versions/*.py | head -1)
-          B64=$(base64 -w 120 "$F")
-          echo "===== BEGIN CANDIDATE BASELINE (base64) ====="
-          echo "$B64"
-          echo "===== END CANDIDATE BASELINE ====="
-          echo "candidate-sha256: $(sha256sum "$F" | cut -d' ' -f1)"
-          echo "candidate-bytes:  $(wc -c < "$F")"
-          echo "candidate-b64-lines: $(echo "$B64" | wc -l)"
-          set -x
-          mkdir -p /tmp/candidate
-          cp alembic/versions/*.py /tmp/candidate/
-          # Put the tree back exactly as it was; this job never mutates state.
-          rm -f alembic/versions/*.py
-          mv /tmp/versions_held/*.py alembic/versions/ 2>/dev/null || true
-
-      # DB 2: what the CURRENT tree produces.
-      #
-      # `mode: models` applies the candidate autogenerated from the MODELS
-      # instead, which is what answers "do the models describe the schema?" —
-      # the question #3275 exists because nobody had ever asked it. Under that
-      # mode a clean diff means autogenerate is trustworthy again.
-      #
-      # The two extensions are created by hand first. They are database
-      # objects, not table metadata, so no model can carry them and their
-      # absence is not a model defect — it is simply outside what this
-      # comparison is asking about.
-      - name: Build the schema the CURRENT tree produces
-        env:
-          MODE: ${{ github.event.inputs.mode }}
-        run: |
-          set -eux
-          docker exec "$PG_CONTAINER" createdb -U fabledcurator fc_base
-          if [ "${MODE:-chain}" = "models" ]; then
-            docker exec "$PG_CONTAINER" psql -U fabledcurator -d fc_base \
-              -c "CREATE EXTENSION IF NOT EXISTS vector" \
-              -c "CREATE EXTENSION IF NOT EXISTS tsm_system_rows"
-            mkdir -p /tmp/held
-            mv alembic/versions/*.py /tmp/held/
-            cp /tmp/candidate/*.py alembic/versions/
-            # Autogenerate EMITS pgvector.sqlalchemy.vector.VECTOR(...) without
-            # importing it, so the file it writes cannot run:
-            #   NameError: name 'pgvector' is not defined
-            # Observed on run 4988, which is the proof rather than the theory.
-            # This is a defect in the GENERATOR, not in the models, so it is
-            # repaired here rather than counted as a schema difference — the
-            # comparison is about whether the models describe the schema.
-            sed -i '0,/^import sqlalchemy as sa$/s//import sqlalchemy as sa\nimport pgvector.sqlalchemy.vector/' alembic/versions/*.py
-            grep -n 'import pgvector' alembic/versions/*.py
-            ls alembic/versions/*.py
-            DB_NAME=fc_base alembic upgrade head
-            rm -f alembic/versions/*.py
-            mv /tmp/held/*.py alembic/versions/
-          else
-            ls alembic/versions/*.py | wc -l
-            DB_NAME=fc_base alembic upgrade head
-          fi
-          docker exec "$PG_CONTAINER" pg_dump -U fabledcurator --schema-only \
-            --no-owner --no-privileges -d fc_base > baseline.sql
-          wc -l baseline.sql
-
-      # The verdict.
-      #
-      # pg_dump orders dumpable objects by name within type, not by creation
-      # order, so two schemas built by different routes are directly
-      # comparable. Normalisation is deliberately minimal, because a filter
-      # that hides a real difference is the one way this check passes when it
-      # should fail — blank lines, SQL comments, trailing whitespace, and:
-      #
-      #   \restrict / \unrestrict — a per-invocation RANDOM NONCE that newer
-      #   pg_dump emits to fence the dump against injection during restore. It
-      #   differs on every run by construction, so it is noise by definition,
-      #   not a schema difference. Measured on run 4960, the control: two dumps
-      #   of the SAME schema came back 1123 lines each and differed on exactly
-      #   these two lines and nothing else. That control is what licenses this
-      #   filter — it was observed to be the only false positive, rather than
-      #   assumed to be one.
-      # Column ORDER inside a CREATE TABLE is compared separately from column
-      # CONTENT, and only content is fatal.
-      #
-      # A table built by 87 migrations has its columns in ADD COLUMN order; the
-      # same table built in one shot has them in declaration order. That is a
-      # real and permanent difference which no baseline can erase — the
-      # operator's existing database keeps chain order forever, a fresh install
-      # gets model order — so a check that fails on it would never pass and
-      # would teach nothing. FC reaches every column through the ORM by name,
-      # and `SELECT *` ordering is not depended on anywhere.
-      #
-      # So the second pass SORTS the column lines within each CREATE TABLE
-      # rather than DELETING them. That distinction is the whole point: sorting
-      # cannot hide a column that exists on one side only, or one whose type,
-      # nullability or default differs — those still land in the diff. A filter
-      # could have hidden all three.
-      #
-      # Both diffs are reported. The ordered one is informational; the
-      # order-insensitive one is the verdict.
-      - name: Diff
-        run: |
-          set -eu
-          norm() {
-            grep -vE '^\s*(--|$)' "$1" \
-              | grep -vE '^\\(un)?restrict ' \
-              | sed 's/[[:space:]]*$//'
-          }
-          norm chain.sql > a.txt
-          norm baseline.sql > b.txt
-          echo "normalised: chain=$(wc -l < a.txt) lines, current=$(wc -l < b.txt) lines"
-
-          sort_table_columns() {
-            python3 - "$1" <<'PYEOF'
-          import re, sys
-
-          lines = open(sys.argv[1]).read().splitlines()
-          out, block = [], None
-          for line in lines:
-              if block is not None:
-                  # ');' on its own closes the CREATE TABLE body.
-                  if line.strip() == ");":
-                      out.extend(sorted(block))
-                      out.append(line)
-                      block = None
-                  else:
-                      # Drop the list comma before sorting. Only the LAST
-                      # column lacks one, so keeping it would make every
-                      # reordering look like a content change as well — the
-                      # comma is punctuation, and carries no schema meaning.
-                      block.append(line.rstrip().rstrip(","))
-                  continue
-              out.append(line)
-              if re.match(r"CREATE TABLE .*\($", line):
-                  block = []
-          if block is not None:  # unterminated body: emit it rather than drop it
-              out.extend(block)
-          print("\n".join(out))
-          PYEOF
-          }
-          sort_table_columns a.txt > a.sorted.txt
-          sort_table_columns b.txt > b.sorted.txt
-          test "$(wc -l < a.sorted.txt)" = "$(wc -l < a.txt)"
-          test "$(wc -l < b.sorted.txt)" = "$(wc -l < b.txt)"
-
-          if diff -u a.txt b.txt > schema.diff; then
-            echo "ORDERED DIFF: identical, column order included."
-          else
-            echo "ORDERED DIFF: $(grep -cE '^[+-]' schema.diff) changed lines (informational):"
-            cat schema.diff
-          fi
-          echo
-          echo "================================================================"
-          echo
-          if diff -u a.sorted.txt b.sorted.txt > sorted.diff; then
-            echo "SCHEMAS MATCH — every difference above is column ORDER alone."
-          else
-            echo "SCHEMAS DIFFER — $(grep -cE '^[+-]' sorted.diff) changed lines that are NOT ordering:"
-            cat sorted.diff
-            echo
-            echo "The baseline is wrong, not the database. Do not stamp."
-            exit 1
-          fi

.forgejo/workflows/ci.yml

@@ -255,27 +255,10 @@ jobs:
           export DB_HOST="$PG_IP"
           export CELERY_BROKER_URL="redis://$RD_IP:6379/0"
           export CELERY_RESULT_BACKEND="redis://$RD_IP:6379/0"
-          # These steps run under `sh -e`, not bash, so bash's /dev/tcp magic
-          # path does not exist here — the probe this loop used to run could
-          # never succeed and simply burned the full 120s on every run, green
-          # or red, then continued without having established anything. Python
-          # is in the image and needs no installed package for a socket
-          # connect, so it is the probe. Exhausting the budget is now a named
-          # failure rather than a silent fall-through (rule 156): if Postgres
-          # is genuinely not up, that is what the log should say, instead of
-          # whatever the first query happens to raise two minutes later.
-          pg_ready=""
           for i in $(seq 1 60); do
-            if python -c "import socket,sys; s=socket.socket(); s.settimeout(2); sys.exit(0 if s.connect_ex(('$PG_IP', 5432)) == 0 else 1)"; then
-              pg_ready=1
-              break
-            fi
+            (echo > "/dev/tcp/$PG_IP/5432") >/dev/null 2>&1 && break
             sleep 2
           done
-          if [ -z "$pg_ready" ]; then
-            echo "postgres at $PG_IP:5432 did not accept a connection within 120s"
-            exit 1
-          fi
           if command -v uv >/dev/null 2>&1; then
             uv pip install --system -r requirements.txt pytest pytest-asyncio
           else

CONTRIBUTING.md

@@ -1,77 +0,0 @@
-# Contributing
-
-FabledCurator is developed by a single maintainer for their own use, and
-published because it may be useful to others. That shapes what contribution
-looks like here.
-
-**Issues are welcome** — bug reports, and questions about running it, are
-genuinely useful and often the fastest way to find out that something is
-broken outside the one environment it was built in.
-
-**Open an issue before writing a pull request.** Not as a formality: the
-project has opinions that are not obvious from the code, and it is unpleasant
-for everyone when a finished patch turns out to conflict with one. A short
-issue first costs you nothing and may save you an evening.
-
-**Contributions are licensed under the AGPL-3.0**, like the rest of the
-project. By submitting one you agree it ships under that licence. There is no
-CLA and no copyright assignment.
-
-## Running it for development
-
-```bash
-docker compose up -d          # UI on http://localhost:8080
-```
-
-The dev override (`docker-compose.override.yml`) is auto-merged and builds the
-app images locally from source, so this needs no `.env` and no registry
-access. Postgres and Redis ports are exposed on the host.
-
-## What CI checks
-
-Every push runs these, and they are the definition of done for a change:
-
-```bash
-ruff check backend/ tests/ alembic/ agent/ scripts/   # lint (and import order)
-pytest tests/ -m "not integration"                    # backend unit tests
-pytest tests/ -m integration                          # needs pgvector + redis
-cd frontend && npm run test:unit && npm run build     # frontend
-```
-
-The integration lane builds its schema by running the real migrations
-(`alembic upgrade head`), never from ORM metadata — so a migration that does
-not apply cleanly fails CI rather than being discovered later.
-
-Note for the linter: ruff's isort runs with `order-by-type`, which sorts
-ALL-CAPS names ahead of CamelCase. `from sqlalchemy import JSON, DateTime, ...`
-is correct; putting `JSON` alphabetically between `Integer` and `String` is
-not. This catches people out.
-
-## Database changes
-
-The ORM models and the migration chain must agree. This is enforced, and it is
-enforced because they silently diverged for a long time and nobody noticed
-until they were compared: the models were missing indexes, defaults and
-uniqueness guarantees that only ever existed inside a migration, which made
-`alembic revision --autogenerate` actively unsafe to run.
-
-So: if you change a model, write the migration; if you write a migration,
-change the model to match. Both, in the same commit.
-
-Adding a value to a CHECK-constrained column means swapping the constraint in
-the same change — the constraint is not documentation, and a new value without
-it fails at insert time.
-
-## Branch model
-
-`dev` is where work happens. `main` is production and is only reached by a
-merge from `dev`, never pushed to directly. If you are sending a pull request,
-target `dev`.
-
-## Style
-
-Match the surrounding code. The one convention worth stating explicitly is
-that comments here explain *why*, especially where a choice looks wrong at a
-glance — a comment recording which migration a constraint came from, or why a
-default is a `text()` rather than a string, is the kind that has repeatedly
-turned out to be worth its space.

LICENSE

@@ -1,661 +0,0 @@
-                    GNU AFFERO GENERAL PUBLIC LICENSE
-                       Version 3, 19 November 2007
-
- Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
- Everyone is permitted to copy and distribute verbatim copies
- of this license document, but changing it is not allowed.
-
-                            Preamble
-
-  The GNU Affero General Public License is a free, copyleft license for
-software and other kinds of works, specifically designed to ensure
-cooperation with the community in the case of network server software.
-
-  The licenses for most software and other practical works are designed
-to take away your freedom to share and change the works.  By contrast,
-our General Public Licenses are intended to guarantee your freedom to
-share and change all versions of a program--to make sure it remains free
-software for all its users.
-
-  When we speak of free software, we are referring to freedom, not
-price.  Our General Public Licenses are designed to make sure that you
-have the freedom to distribute copies of free software (and charge for
-them if you wish), that you receive source code or can get it if you
-want it, that you can change the software or use pieces of it in new
-free programs, and that you know you can do these things.
-
-  Developers that use our General Public Licenses protect your rights
-with two steps: (1) assert copyright on the software, and (2) offer
-you this License which gives you legal permission to copy, distribute
-and/or modify the software.
-
-  A secondary benefit of defending all users' freedom is that
-improvements made in alternate versions of the program, if they
-receive widespread use, become available for other developers to
-incorporate.  Many developers of free software are heartened and
-encouraged by the resulting cooperation.  However, in the case of
-software used on network servers, this result may fail to come about.
-The GNU General Public License permits making a modified version and
-letting the public access it on a server without ever releasing its
-source code to the public.
-
-  The GNU Affero General Public License is designed specifically to
-ensure that, in such cases, the modified source code becomes available
-to the community.  It requires the operator of a network server to
-provide the source code of the modified version running there to the
-users of that server.  Therefore, public use of a modified version, on
-a publicly accessible server, gives the public access to the source
-code of the modified version.
-
-  An older license, called the Affero General Public License and
-published by Affero, was designed to accomplish similar goals.  This is
-a different license, not a version of the Affero GPL, but Affero has
-released a new version of the Affero GPL which permits relicensing under
-this license.
-
-  The precise terms and conditions for copying, distribution and
-modification follow.
-
-                       TERMS AND CONDITIONS
-
-  0. Definitions.
-
-  "This License" refers to version 3 of the GNU Affero General Public License.
-
-  "Copyright" also means copyright-like laws that apply to other kinds of
-works, such as semiconductor masks.
-
-  "The Program" refers to any copyrightable work licensed under this
-License.  Each licensee is addressed as "you".  "Licensees" and
-"recipients" may be individuals or organizations.
-
-  To "modify" a work means to copy from or adapt all or part of the work
-in a fashion requiring copyright permission, other than the making of an
-exact copy.  The resulting work is called a "modified version" of the
-earlier work or a work "based on" the earlier work.
-
-  A "covered work" means either the unmodified Program or a work based
-on the Program.
-
-  To "propagate" a work means to do anything with it that, without
-permission, would make you directly or secondarily liable for
-infringement under applicable copyright law, except executing it on a
-computer or modifying a private copy.  Propagation includes copying,
-distribution (with or without modification), making available to the
-public, and in some countries other activities as well.
-
-  To "convey" a work means any kind of propagation that enables other
-parties to make or receive copies.  Mere interaction with a user through
-a computer network, with no transfer of a copy, is not conveying.
-
-  An interactive user interface displays "Appropriate Legal Notices"
-to the extent that it includes a convenient and prominently visible
-feature that (1) displays an appropriate copyright notice, and (2)
-tells the user that there is no warranty for the work (except to the
-extent that warranties are provided), that licensees may convey the
-work under this License, and how to view a copy of this License.  If
-the interface presents a list of user commands or options, such as a
-menu, a prominent item in the list meets this criterion.
-
-  1. Source Code.
-
-  The "source code" for a work means the preferred form of the work
-for making modifications to it.  "Object code" means any non-source
-form of a work.
-
-  A "Standard Interface" means an interface that either is an official
-standard defined by a recognized standards body, or, in the case of
-interfaces specified for a particular programming language, one that
-is widely used among developers working in that language.
-
-  The "System Libraries" of an executable work include anything, other
-than the work as a whole, that (a) is included in the normal form of
-packaging a Major Component, but which is not part of that Major
-Component, and (b) serves only to enable use of the work with that
-Major Component, or to implement a Standard Interface for which an
-implementation is available to the public in source code form.  A
-"Major Component", in this context, means a major essential component
-(kernel, window system, and so on) of the specific operating system
-(if any) on which the executable work runs, or a compiler used to
-produce the work, or an object code interpreter used to run it.
-
-  The "Corresponding Source" for a work in object code form means all
-the source code needed to generate, install, and (for an executable
-work) run the object code and to modify the work, including scripts to
-control those activities.  However, it does not include the work's
-System Libraries, or general-purpose tools or generally available free
-programs which are used unmodified in performing those activities but
-which are not part of the work.  For example, Corresponding Source
-includes interface definition files associated with source files for
-the work, and the source code for shared libraries and dynamically
-linked subprograms that the work is specifically designed to require,
-such as by intimate data communication or control flow between those
-subprograms and other parts of the work.
-
-  The Corresponding Source need not include anything that users
-can regenerate automatically from other parts of the Corresponding
-Source.
-
-  The Corresponding Source for a work in source code form is that
-same work.
-
-  2. Basic Permissions.
-
-  All rights granted under this License are granted for the term of
-copyright on the Program, and are irrevocable provided the stated
-conditions are met.  This License explicitly affirms your unlimited
-permission to run the unmodified Program.  The output from running a
-covered work is covered by this License only if the output, given its
-content, constitutes a covered work.  This License acknowledges your
-rights of fair use or other equivalent, as provided by copyright law.
-
-  You may make, run and propagate covered works that you do not
-convey, without conditions so long as your license otherwise remains
-in force.  You may convey covered works to others for the sole purpose
-of having them make modifications exclusively for you, or provide you
-with facilities for running those works, provided that you comply with
-the terms of this License in conveying all material for which you do
-not control copyright.  Those thus making or running the covered works
-for you must do so exclusively on your behalf, under your direction
-and control, on terms that prohibit them from making any copies of
-your copyrighted material outside their relationship with you.
-
-  Conveying under any other circumstances is permitted solely under
-the conditions stated below.  Sublicensing is not allowed; section 10
-makes it unnecessary.
-
-  3. Protecting Users' Legal Rights From Anti-Circumvention Law.
-
-  No covered work shall be deemed part of an effective technological
-measure under any applicable law fulfilling obligations under article
-11 of the WIPO copyright treaty adopted on 20 December 1996, or
-similar laws prohibiting or restricting circumvention of such
-measures.
-
-  When you convey a covered work, you waive any legal power to forbid
-circumvention of technological measures to the extent such circumvention
-is effected by exercising rights under this License with respect to
-the covered work, and you disclaim any intention to limit operation or
-modification of the work as a means of enforcing, against the work's
-users, your or third parties' legal rights to forbid circumvention of
-technological measures.
-
-  4. Conveying Verbatim Copies.
-
-  You may convey verbatim copies of the Program's source code as you
-receive it, in any medium, provided that you conspicuously and
-appropriately publish on each copy an appropriate copyright notice;
-keep intact all notices stating that this License and any
-non-permissive terms added in accord with section 7 apply to the code;
-keep intact all notices of the absence of any warranty; and give all
-recipients a copy of this License along with the Program.
-
-  You may charge any price or no price for each copy that you convey,
-and you may offer support or warranty protection for a fee.
-
-  5. Conveying Modified Source Versions.
-
-  You may convey a work based on the Program, or the modifications to
-produce it from the Program, in the form of source code under the
-terms of section 4, provided that you also meet all of these conditions:
-
-    a) The work must carry prominent notices stating that you modified
-    it, and giving a relevant date.
-
-    b) The work must carry prominent notices stating that it is
-    released under this License and any conditions added under section
-    7.  This requirement modifies the requirement in section 4 to
-    "keep intact all notices".
-
-    c) You must license the entire work, as a whole, under this
-    License to anyone who comes into possession of a copy.  This
-    License will therefore apply, along with any applicable section 7
-    additional terms, to the whole of the work, and all its parts,
-    regardless of how they are packaged.  This License gives no
-    permission to license the work in any other way, but it does not
-    invalidate such permission if you have separately received it.
-
-    d) If the work has interactive user interfaces, each must display
-    Appropriate Legal Notices; however, if the Program has interactive
-    interfaces that do not display Appropriate Legal Notices, your
-    work need not make them do so.
-
-  A compilation of a covered work with other separate and independent
-works, which are not by their nature extensions of the covered work,
-and which are not combined with it such as to form a larger program,
-in or on a volume of a storage or distribution medium, is called an
-"aggregate" if the compilation and its resulting copyright are not
-used to limit the access or legal rights of the compilation's users
-beyond what the individual works permit.  Inclusion of a covered work
-in an aggregate does not cause this License to apply to the other
-parts of the aggregate.
-
-  6. Conveying Non-Source Forms.
-
-  You may convey a covered work in object code form under the terms
-of sections 4 and 5, provided that you also convey the
-machine-readable Corresponding Source under the terms of this License,
-in one of these ways:
-
-    a) Convey the object code in, or embodied in, a physical product
-    (including a physical distribution medium), accompanied by the
-    Corresponding Source fixed on a durable physical medium
-    customarily used for software interchange.
-
-    b) Convey the object code in, or embodied in, a physical product
-    (including a physical distribution medium), accompanied by a
-    written offer, valid for at least three years and valid for as
-    long as you offer spare parts or customer support for that product
-    model, to give anyone who possesses the object code either (1) a
-    copy of the Corresponding Source for all the software in the
-    product that is covered by this License, on a durable physical
-    medium customarily used for software interchange, for a price no
-    more than your reasonable cost of physically performing this
-    conveying of source, or (2) access to copy the
-    Corresponding Source from a network server at no charge.
-
-    c) Convey individual copies of the object code with a copy of the
-    written offer to provide the Corresponding Source.  This
-    alternative is allowed only occasionally and noncommercially, and
-    only if you received the object code with such an offer, in accord
-    with subsection 6b.
-
-    d) Convey the object code by offering access from a designated
-    place (gratis or for a charge), and offer equivalent access to the
-    Corresponding Source in the same way through the same place at no
-    further charge.  You need not require recipients to copy the
-    Corresponding Source along with the object code.  If the place to
-    copy the object code is a network server, the Corresponding Source
-    may be on a different server (operated by you or a third party)
-    that supports equivalent copying facilities, provided you maintain
-    clear directions next to the object code saying where to find the
-    Corresponding Source.  Regardless of what server hosts the
-    Corresponding Source, you remain obligated to ensure that it is
-    available for as long as needed to satisfy these requirements.
-
-    e) Convey the object code using peer-to-peer transmission, provided
-    you inform other peers where the object code and Corresponding
-    Source of the work are being offered to the general public at no
-    charge under subsection 6d.
-
-  A separable portion of the object code, whose source code is excluded
-from the Corresponding Source as a System Library, need not be
-included in conveying the object code work.
-
-  A "User Product" is either (1) a "consumer product", which means any
-tangible personal property which is normally used for personal, family,
-or household purposes, or (2) anything designed or sold for incorporation
-into a dwelling.  In determining whether a product is a consumer product,
-doubtful cases shall be resolved in favor of coverage.  For a particular
-product received by a particular user, "normally used" refers to a
-typical or common use of that class of product, regardless of the status
-of the particular user or of the way in which the particular user
-actually uses, or expects or is expected to use, the product.  A product
-is a consumer product regardless of whether the product has substantial
-commercial, industrial or non-consumer uses, unless such uses represent
-the only significant mode of use of the product.
-
-  "Installation Information" for a User Product means any methods,
-procedures, authorization keys, or other information required to install
-and execute modified versions of a covered work in that User Product from
-a modified version of its Corresponding Source.  The information must
-suffice to ensure that the continued functioning of the modified object
-code is in no case prevented or interfered with solely because
-modification has been made.
-
-  If you convey an object code work under this section in, or with, or
-specifically for use in, a User Product, and the conveying occurs as
-part of a transaction in which the right of possession and use of the
-User Product is transferred to the recipient in perpetuity or for a
-fixed term (regardless of how the transaction is characterized), the
-Corresponding Source conveyed under this section must be accompanied
-by the Installation Information.  But this requirement does not apply
-if neither you nor any third party retains the ability to install
-modified object code on the User Product (for example, the work has
-been installed in ROM).
-
-  The requirement to provide Installation Information does not include a
-requirement to continue to provide support service, warranty, or updates
-for a work that has been modified or installed by the recipient, or for
-the User Product in which it has been modified or installed.  Access to a
-network may be denied when the modification itself materially and
-adversely affects the operation of the network or violates the rules and
-protocols for communication across the network.
-
-  Corresponding Source conveyed, and Installation Information provided,
-in accord with this section must be in a format that is publicly
-documented (and with an implementation available to the public in
-source code form), and must require no special password or key for
-unpacking, reading or copying.
-
-  7. Additional Terms.
-
-  "Additional permissions" are terms that supplement the terms of this
-License by making exceptions from one or more of its conditions.
-Additional permissions that are applicable to the entire Program shall
-be treated as though they were included in this License, to the extent
-that they are valid under applicable law.  If additional permissions
-apply only to part of the Program, that part may be used separately
-under those permissions, but the entire Program remains governed by
-this License without regard to the additional permissions.
-
-  When you convey a copy of a covered work, you may at your option
-remove any additional permissions from that copy, or from any part of
-it.  (Additional permissions may be written to require their own
-removal in certain cases when you modify the work.)  You may place
-additional permissions on material, added by you to a covered work,
-for which you have or can give appropriate copyright permission.
-
-  Notwithstanding any other provision of this License, for material you
-add to a covered work, you may (if authorized by the copyright holders of
-that material) supplement the terms of this License with terms:
-
-    a) Disclaiming warranty or limiting liability differently from the
-    terms of sections 15 and 16 of this License; or
-
-    b) Requiring preservation of specified reasonable legal notices or
-    author attributions in that material or in the Appropriate Legal
-    Notices displayed by works containing it; or
-
-    c) Prohibiting misrepresentation of the origin of that material, or
-    requiring that modified versions of such material be marked in
-    reasonable ways as different from the original version; or
-
-    d) Limiting the use for publicity purposes of names of licensors or
-    authors of the material; or
-
-    e) Declining to grant rights under trademark law for use of some
-    trade names, trademarks, or service marks; or
-
-    f) Requiring indemnification of licensors and authors of that
-    material by anyone who conveys the material (or modified versions of
-    it) with contractual assumptions of liability to the recipient, for
-    any liability that these contractual assumptions directly impose on
-    those licensors and authors.
-
-  All other non-permissive additional terms are considered "further
-restrictions" within the meaning of section 10.  If the Program as you
-received it, or any part of it, contains a notice stating that it is
-governed by this License along with a term that is a further
-restriction, you may remove that term.  If a license document contains
-a further restriction but permits relicensing or conveying under this
-License, you may add to a covered work material governed by the terms
-of that license document, provided that the further restriction does
-not survive such relicensing or conveying.
-
-  If you add terms to a covered work in accord with this section, you
-must place, in the relevant source files, a statement of the
-additional terms that apply to those files, or a notice indicating
-where to find the applicable terms.
-
-  Additional terms, permissive or non-permissive, may be stated in the
-form of a separately written license, or stated as exceptions;
-the above requirements apply either way.
-
-  8. Termination.
-
-  You may not propagate or modify a covered work except as expressly
-provided under this License.  Any attempt otherwise to propagate or
-modify it is void, and will automatically terminate your rights under
-this License (including any patent licenses granted under the third
-paragraph of section 11).
-
-  However, if you cease all violation of this License, then your
-license from a particular copyright holder is reinstated (a)
-provisionally, unless and until the copyright holder explicitly and
-finally terminates your license, and (b) permanently, if the copyright
-holder fails to notify you of the violation by some reasonable means
-prior to 60 days after the cessation.
-
-  Moreover, your license from a particular copyright holder is
-reinstated permanently if the copyright holder notifies you of the
-violation by some reasonable means, this is the first time you have
-received notice of violation of this License (for any work) from that
-copyright holder, and you cure the violation prior to 30 days after
-your receipt of the notice.
-
-  Termination of your rights under this section does not terminate the
-licenses of parties who have received copies or rights from you under
-this License.  If your rights have been terminated and not permanently
-reinstated, you do not qualify to receive new licenses for the same
-material under section 10.
-
-  9. Acceptance Not Required for Having Copies.
-
-  You are not required to accept this License in order to receive or
-run a copy of the Program.  Ancillary propagation of a covered work
-occurring solely as a consequence of using peer-to-peer transmission
-to receive a copy likewise does not require acceptance.  However,
-nothing other than this License grants you permission to propagate or
-modify any covered work.  These actions infringe copyright if you do
-not accept this License.  Therefore, by modifying or propagating a
-covered work, you indicate your acceptance of this License to do so.
-
-  10. Automatic Licensing of Downstream Recipients.
-
-  Each time you convey a covered work, the recipient automatically
-receives a license from the original licensors, to run, modify and
-propagate that work, subject to this License.  You are not responsible
-for enforcing compliance by third parties with this License.
-
-  An "entity transaction" is a transaction transferring control of an
-organization, or substantially all assets of one, or subdividing an
-organization, or merging organizations.  If propagation of a covered
-work results from an entity transaction, each party to that
-transaction who receives a copy of the work also receives whatever
-licenses to the work the party's predecessor in interest had or could
-give under the previous paragraph, plus a right to possession of the
-Corresponding Source of the work from the predecessor in interest, if
-the predecessor has it or can get it with reasonable efforts.
-
-  You may not impose any further restrictions on the exercise of the
-rights granted or affirmed under this License.  For example, you may
-not impose a license fee, royalty, or other charge for exercise of
-rights granted under this License, and you may not initiate litigation
-(including a cross-claim or counterclaim in a lawsuit) alleging that
-any patent claim is infringed by making, using, selling, offering for
-sale, or importing the Program or any portion of it.
-
-  11. Patents.
-
-  A "contributor" is a copyright holder who authorizes use under this
-License of the Program or a work on which the Program is based.  The
-work thus licensed is called the contributor's "contributor version".
-
-  A contributor's "essential patent claims" are all patent claims
-owned or controlled by the contributor, whether already acquired or
-hereafter acquired, that would be infringed by some manner, permitted
-by this License, of making, using, or selling its contributor version,
-but do not include claims that would be infringed only as a
-consequence of further modification of the contributor version.  For
-purposes of this definition, "control" includes the right to grant
-patent sublicenses in a manner consistent with the requirements of
-this License.
-
-  Each contributor grants you a non-exclusive, worldwide, royalty-free
-patent license under the contributor's essential patent claims, to
-make, use, sell, offer for sale, import and otherwise run, modify and
-propagate the contents of its contributor version.
-
-  In the following three paragraphs, a "patent license" is any express
-agreement or commitment, however denominated, not to enforce a patent
-(such as an express permission to practice a patent or covenant not to
-sue for patent infringement).  To "grant" such a patent license to a
-party means to make such an agreement or commitment not to enforce a
-patent against the party.
-
-  If you convey a covered work, knowingly relying on a patent license,
-and the Corresponding Source of the work is not available for anyone
-to copy, free of charge and under the terms of this License, through a
-publicly available network server or other readily accessible means,
-then you must either (1) cause the Corresponding Source to be so
-available, or (2) arrange to deprive yourself of the benefit of the
-patent license for this particular work, or (3) arrange, in a manner
-consistent with the requirements of this License, to extend the patent
-license to downstream recipients.  "Knowingly relying" means you have
-actual knowledge that, but for the patent license, your conveying the
-covered work in a country, or your recipient's use of the covered work
-in a country, would infringe one or more identifiable patents in that
-country that you have reason to believe are valid.
-
-  If, pursuant to or in connection with a single transaction or
-arrangement, you convey, or propagate by procuring conveyance of, a
-covered work, and grant a patent license to some of the parties
-receiving the covered work authorizing them to use, propagate, modify
-or convey a specific copy of the covered work, then the patent license
-you grant is automatically extended to all recipients of the covered
-work and works based on it.
-
-  A patent license is "discriminatory" if it does not include within
-the scope of its coverage, prohibits the exercise of, or is
-conditioned on the non-exercise of one or more of the rights that are
-specifically granted under this License.  You may not convey a covered
-work if you are a party to an arrangement with a third party that is
-in the business of distributing software, under which you make payment
-to the third party based on the extent of your activity of conveying
-the work, and under which the third party grants, to any of the
-parties who would receive the covered work from you, a discriminatory
-patent license (a) in connection with copies of the covered work
-conveyed by you (or copies made from those copies), or (b) primarily
-for and in connection with specific products or compilations that
-contain the covered work, unless you entered into that arrangement,
-or that patent license was granted, prior to 28 March 2007.
-
-  Nothing in this License shall be construed as excluding or limiting
-any implied license or other defenses to infringement that may
-otherwise be available to you under applicable patent law.
-
-  12. No Surrender of Others' Freedom.
-
-  If conditions are imposed on you (whether by court order, agreement or
-otherwise) that contradict the conditions of this License, they do not
-excuse you from the conditions of this License.  If you cannot convey a
-covered work so as to satisfy simultaneously your obligations under this
-License and any other pertinent obligations, then as a consequence you may
-not convey it at all.  For example, if you agree to terms that obligate you
-to collect a royalty for further conveying from those to whom you convey
-the Program, the only way you could satisfy both those terms and this
-License would be to refrain entirely from conveying the Program.
-
-  13. Remote Network Interaction; Use with the GNU General Public License.
-
-  Notwithstanding any other provision of this License, if you modify the
-Program, your modified version must prominently offer all users
-interacting with it remotely through a computer network (if your version
-supports such interaction) an opportunity to receive the Corresponding
-Source of your version by providing access to the Corresponding Source
-from a network server at no charge, through some standard or customary
-means of facilitating copying of software.  This Corresponding Source
-shall include the Corresponding Source for any work covered by version 3
-of the GNU General Public License that is incorporated pursuant to the
-following paragraph.
-
-  Notwithstanding any other provision of this License, you have
-permission to link or combine any covered work with a work licensed
-under version 3 of the GNU General Public License into a single
-combined work, and to convey the resulting work.  The terms of this
-License will continue to apply to the part which is the covered work,
-but the work with which it is combined will remain governed by version
-3 of the GNU General Public License.
-
-  14. Revised Versions of this License.
-
-  The Free Software Foundation may publish revised and/or new versions of
-the GNU Affero General Public License from time to time.  Such new versions
-will be similar in spirit to the present version, but may differ in detail to
-address new problems or concerns.
-
-  Each version is given a distinguishing version number.  If the
-Program specifies that a certain numbered version of the GNU Affero General
-Public License "or any later version" applies to it, you have the
-option of following the terms and conditions either of that numbered
-version or of any later version published by the Free Software
-Foundation.  If the Program does not specify a version number of the
-GNU Affero General Public License, you may choose any version ever published
-by the Free Software Foundation.
-
-  If the Program specifies that a proxy can decide which future
-versions of the GNU Affero General Public License can be used, that proxy's
-public statement of acceptance of a version permanently authorizes you
-to choose that version for the Program.
-
-  Later license versions may give you additional or different
-permissions.  However, no additional obligations are imposed on any
-author or copyright holder as a result of your choosing to follow a
-later version.
-
-  15. Disclaimer of Warranty.
-
-  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
-APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
-HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
-OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
-THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
-IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
-ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
-
-  16. Limitation of Liability.
-
-  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
-THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
-GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
-USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
-DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
-PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
-EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGES.
-
-  17. Interpretation of Sections 15 and 16.
-
-  If the disclaimer of warranty and limitation of liability provided
-above cannot be given local legal effect according to their terms,
-reviewing courts shall apply local law that most closely approximates
-an absolute waiver of all civil liability in connection with the
-Program, unless a warranty or assumption of liability accompanies a
-copy of the Program in return for a fee.
-
-                     END OF TERMS AND CONDITIONS
-
-            How to Apply These Terms to Your New Programs
-
-  If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these terms.
-
-  To do so, attach the following notices to the program.  It is safest
-to attach them to the start of each source file to most effectively
-state the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
-
-    <one line to give the program's name and a brief idea of what it does.>
-    Copyright (C) <year>  <name of author>
-
-    This program is free software: you can redistribute it and/or modify
-    it under the terms of the GNU Affero General Public License as published by
-    the Free Software Foundation, either version 3 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU Affero General Public License for more details.
-
-    You should have received a copy of the GNU Affero General Public License
-    along with this program.  If not, see <https://www.gnu.org/licenses/>.
-
-Also add information on how to contact you by electronic and paper mail.
-
-  If your software can interact with users remotely through a computer
-network, you should also make sure that it provides a way for users to
-get its source.  For example, if your program is a web application, its
-interface could display a "Source" link that leads users to an archive
-of the code.  There are many ways you could offer source, and different
-solutions will be better for different programs; see section 13 for the
-specific requirements.
-
-  You should also get your employer (if you work as a programmer) or school,
-if any, to sign a "copyright disclaimer" for the program, if necessary.
-For more information on this, and how to apply and follow the GNU AGPL, see
-<https://www.gnu.org/licenses/>.

README.md

@@ -1,230 +1,14 @@
 # FabledCurator
 
-<!-- overview:start -->
-Self-hosted media curation — a gallery, ML auto-tagging, and subscription-driven
-downloading in one application. Part of the FabledSword family.
+Self-hosted media curation — gallery, ML tagging, and subscription-driven downloading in one app. Part of the FabledSword family.
 
-## What it does
+Combines what was [ImageRepo](https://git.fabledsword.com/bvandeusen/ImageRepo) (gallery, ML, importer) and [GallerySubscriber](https://git.fabledsword.com/bvandeusen/GallerySubscriber) (gallery-dl wrapper, subscriptions, credential capture) into a single product.
 
-You point it at creators you follow. It downloads what they post, files it,
-tags it, and gives you something better than a folder full of images to look
-through afterwards.
+## Status
 
-- **Gallery and browsing.** Images, videos and multi-page works, organised by
-  artist, tag, post and series. A Showcase front page, a filterable gallery, a
-  similarity-driven Explore view, and a page-turning reader for series.
-- **Subscriptions.** Follows creators on Patreon, SubscribeStar, Pixiv and
-  anything `gallery-dl` supports, on a schedule. Handles paywalled posts using
-  your own logged-in session.
-- **ML tagging.** Runs image models in-container to suggest tags, group
-  characters, find near-duplicates and power similarity search. Suggestions are
-  reviewable — it proposes, you confirm, and it learns which proposals you keep
-  rejecting.
-- **Deduplication and provenance.** Everything that arrives is hashed and
-  deduplicated by content, metadata sidecars are read wherever the source
-  writes them, and every file keeps a record of where it came from.
-- **Maintenance.** Backups, library audits, thumbnail and embedding backfills,
-  orphan cleanup — all from the UI, all as background jobs you can watch.
-
-Everything is configured from the Settings UI and stored in the database. There
-is no config file to edit beyond a handful of bootstrap environment variables.
-<!-- overview:end -->
-
-## Before you expose it
-
-**FabledCurator has no login.** There are no user accounts, no passwords and no
-permission model. Anything that can reach the port is an administrator.
-
-That matters more here than it would in most self-hosted apps, because of what
-this one stores: **live platform session cookies for Patreon, SubscribeStar and
-Pixiv** — accounts that usually have a payment method attached. Whoever reaches
-the port can read them, alongside your entire library.
-
-So:
-
-- Bind it to a LAN, a VPN, or a tunnel you control.
-- Do not port-forward it. Do not put it on a public hostname.
-- A reverse proxy that adds TLS but no authentication **does not help**. If you
-  want it reachable from outside, put an authenticating proxy in front of it —
-  a forward-auth provider, HTTP basic auth, an identity-aware tunnel — and treat
-  that layer as the only thing standing between the internet and your accounts.
-
-This is a deliberate design decision for a single-operator tool on a trusted
-network, not a bug and not an oversight. It is stated here because it decides
-how you are allowed to deploy it. [SECURITY.md](SECURITY.md) covers the rest of
-the threat model.
-
-## Requirements
-
-- **Docker** with Compose v2.
-- **~4 GB RAM** for the app, plus whatever Postgres needs for your library size.
-- **Disk** for your media, plus several GB for ML model weights.
-- **No GPU required.** The ML worker runs on CPU — tagging and embedding are
-  slower, and that is the whole difference. A GPU is only involved if you
-  separately run the optional agent (below), which is a different machine's job.
-
-## Install
-
-```bash
-git clone https://git.fabledsword.com/bvandeusen/FabledCurator.git
-cd FabledCurator
-
-cp .env.example .env
-$EDITOR .env          # set DB_PASSWORD and SECRET_KEY
-
-docker compose -f docker-compose.yml up -d
-```
-
-Then open <http://localhost:8080>.
-
-**The `-f docker-compose.yml` is required, not decoration.** Compose
-auto-merges `docker-compose.override.yml` when you leave it off, and that
-override builds the images locally from source — the contributor path, not
-yours. Naming the file explicitly skips the override and pulls the published
-`:latest` images, which is the stable channel built from `main`.
-
-If you forget it, the symptom is a long build instead of a quick pull.
-
-## First run
-
-The database schema is created automatically on first start — the web container
-runs its migrations before serving. Nothing to initialise by hand.
-
-**One thing does need a deliberate act, and the app will not start without it.**
-FabledCurator encrypts your stored platform credentials with a key it keeps at
-`./images/secrets/credential_key.b64`. On a brand-new install that file does not
-exist, and rather than quietly creating one the app stops:
-
-```
-MissingCredentialKey: Fernet key file not found at /images/secrets/credential_key.b64
-```
-
-Set `CURATOR_BOOTSTRAP_NEW_KEY=1` in your `.env` for the first `up`, then delete
-the line once the container is running. `.env.example` ships it with that
-instruction attached.
-
-The refusal is deliberate, and worth understanding rather than working around:
-auto-creating a key is indistinguishable from the disaster case — a restore that
-brought the database back but lost `./images/secrets` — where it would mint a key
-that cannot decrypt anything, leaving an instance that looks healthy while every
-paywalled download fails. Making you say so once, on an empty install, is the
-price of that not happening silently later.
-
-**Which means: back up `./images/secrets/` alongside your database.** It is the
-only thing that can read your stored credentials. A database restored without it
-needs every credential entered again by hand.
-
-A few other things are worth knowing about the first few minutes:
-
-- **The ML worker downloads its model weights on first boot**, several GB from
-  HuggingFace into `./models`. Until that finishes, tagging is queued rather
-  than broken. It is idempotent — a restart resumes rather than refetches.
-- **The gallery starts empty**, and that is the expected state. Add a creator
-  under **Subscriptions** and it fills as posts come down.
-- **If you already have a library on disk**, there is no screen that imports
-  it, and there is not going to be one. Folder ingestion had a UI until July
-  2026; it was retired once posts began arriving entirely through
-  subscriptions and the browser extension, and the decision to leave it
-  retired is deliberate — the folder path carries complexity the product does
-  not need in order to do its job. The supported way to fill a new install is
-  to add the creators you follow under **Subscriptions** and let it pull.
-
-  The `/api/import/trigger` endpoint is still wired up for anyone who wants to
-  script a one-off against a folder mounted at `./import`, and its progress
-  shows under **Settings → Activity**. Treat it as an unsupported escape
-  hatch rather than a feature: nothing in the UI drives it and nothing else
-  in this README depends on it.
-- **To download from a paywalled account**, FabledCurator needs that account's
-  session — see the browser extension below. Without one it can still fetch
-  public posts.
-- **Check Settings → Overview** to confirm the workers are alive. Every long
-  operation in FabledCurator is a background job, so if the queues are not
-  running, the UI will look like it is ignoring you rather than like it is
-  broken.
-
-## The browser extension
-
-A Firefox extension does two jobs: it hands your logged-in platform sessions to
-FabledCurator so it can download on your behalf, and it adds a creator as a
-subscription in one click from their page.
-
-It ships **inside the web image** — there is no add-on store listing to find.
-Go to **Subscriptions → Settings**, find the *Browser extension* card, and click
-**Install Firefox extension**. The XPI is Mozilla-signed, so Firefox installs it
-like any other add-on; the button serves it directly rather than making you
-download and side-load a file.
-
-It pairs with your instance using an API key generated automatically on first
-use. The bar directly under that card shows the key and can rotate it.
-
-See [extension/README.md](extension/README.md) for what it does in detail.
-
-## The GPU agent
-
-Optional, and separate. If you have a desktop with a graphics card, you can run
-an agent on it that leases ML jobs from FabledCurator over HTTP, does them on
-the GPU, and hands the results back. It never touches the database or Redis, so
-it is safe to run somewhere the rest of the stack is not.
-
-Run it for a burst of tagging, stop it to get your card back. It deploys from
-`agent/docker-compose.yml`, not the main stack — see
-[agent/README.md](agent/README.md).
-
-## Upgrading
-
-```bash
-docker compose -f docker-compose.yml pull
-docker compose -f docker-compose.yml up -d
-```
-
-Migrations run automatically on start. Take a database backup first — Settings →
-Maintenance has one — because the schema moves forward and does not move back.
-
-## Deployment posture
-
-FabledCurator is built to run inside a homelab over plain HTTP. It does not
-generate certificates, redirect to HTTPS, or set HSTS. If you want TLS,
-terminate it at your reverse proxy. See [Before you expose it](#before-you-expose-it)
-for why TLS alone is not enough.
-
-## Troubleshooting
-
-**The UI loads but nothing ever finishes.** The web container is up and the
-workers are not. `docker compose -f docker-compose.yml ps` — check `worker`,
-`scheduler` and `ml-worker` are healthy, not restarting.
-
-**`docker compose up` started building instead of pulling.** You left off
-`-f docker-compose.yml`, so the dev override took over. See [Install](#install).
-
-**Downloads fail with an auth error.** The stored session for that platform has
-expired. Re-capture it with the extension; sessions do not last forever.
-
-**Which build am I running?** The foot of Settings shows a version and a
-channel, and `/api/health` returns the same two fields. There are no version
-tags on the images, so this is the authoritative answer.
-
----
-
-# Developing FabledCurator
-
-Everything below is about working on FabledCurator rather than running it. If
-you are installing it, you are done — see [CONTRIBUTING.md](CONTRIBUTING.md) if
-you want to send a patch.
-
-## Status and channels
-
-In production. `main` is continuously deployed — every merge builds and
-publishes `:latest`, so whatever is on `main` is what is running. Day-to-day
-work happens on `dev`, which publishes `:dev`.
-
-For local development, the dev override handles everything:
-
-```bash
-docker compose up -d          # note: no -f, so the override applies
-```
-
-That builds the images from source, turns on DEBUG logging, and exposes
-Postgres and Redis on the host. No `.env` required.
+In production. `main` is continuously deployed — every merge to `main` builds
+and publishes `:latest` images, so whatever is on `main` is what is running.
+Day-to-day work happens on `dev`, which publishes `:dev` images.
 
 ## Versions and tags
 
@@ -263,10 +47,38 @@ Five deployable pieces, built by `.forgejo/workflows/build.yml`:
 | --- | --- | --- | --- |
 | **Web / workers** | `Dockerfile` | `fabledcurator` | Quart API + the built Vue SPA in one image. `entrypoint.sh` picks the role: `web`, `worker`, `scheduler`. The `maintenance-long` service is a second `worker` pinned to the long-running maintenance queue. |
 | **ML worker** | `Dockerfile.ml` | `fabledcurator-ml` | Same app, plus `requirements-ml.txt` — tagging and embedding models that run in-container. |
-| **GPU agent** | `agent/Dockerfile` | `fabledcurator-agent` | Optional desktop-GPU worker (`agent/`). Leases jobs over **HTTP only** — never touches the database or Redis. See `agent/README.md`. |
+| **GPU agent** | `agent/Dockerfile` | `fabledcurator-agent` | Optional desktop-GPU worker (`agent/`). Leases jobs over **HTTP only** — never touches the database or Redis. Run it for a burst, stop it to reclaim the card. See `agent/README.md`. |
 | **Firefox extension** | `extension/` | signed XPI | MV3 extension: pushes platform session cookies into FC and adds a creator as a Source in one click. AMO-signed on both `dev` and `main` (one signature per extension change, shared by the two channels), bundled into that channel's web image and served from Settings → Maintenance. See `extension/README.md`. |
 | **Data** | — | `pgvector/pgvector:pg16`, `redis:7-alpine` | Postgres with pgvector for embeddings; Redis as the Celery broker. |
 
+## Quick start
+
+For local development and testing, just:
+
+```bash
+docker compose up -d
+# UI: http://localhost:8080
+```
+
+That uses sane dev defaults baked into `docker-compose.yml` and the dev
+override (`docker-compose.override.yml`, auto-merged) — local builds, DEBUG
+logging, exposed Postgres + Redis ports on the host. No `.env` required.
+
+For a production-like deployment, override the dev defaults via shell env
+or a `.env` file (see `.env.example` for the variable names) and use:
+
+```bash
+docker compose -f docker-compose.yml up -d
+# (skips the override so containers pull registry images)
+```
+
+The GPU agent is deployed separately, on the machine with the card —
+`agent/docker-compose.yml`, not this stack.
+
+## Deployment posture
+
+FabledCurator is designed to run inside a self-hosted homelab environment over plain HTTP. If you want TLS, terminate it at your reverse proxy. The app does not generate certificates, redirect to HTTPS, or set HSTS.
+
 ## CI / Forgejo setup
 
 Four workflows: `ci.yml` (lint, extension-version check, backend unit tests,
@@ -296,29 +108,6 @@ source, so `main` finds `dev`'s signature already cached and makes no second AMO
 call. That cache is why signing must be one-shot — AMO rejects a re-signed
 version.
 
-## History
-
-FabledCurator combines what was
-[ImageRepo](https://git.fabledsword.com/bvandeusen/ImageRepo) (gallery, ML,
-importer) and
-[GallerySubscriber](https://git.fabledsword.com/bvandeusen/GallerySubscriber)
-(gallery-dl wrapper, subscriptions, credential capture) into a single product.
-Both are superseded; neither is maintained.
-
 ## License
 
-**GNU Affero General Public License v3.0** — see [LICENSE](LICENSE).
-
-You may run, study, modify and redistribute this software. The condition is
-reciprocity: if you distribute a modified version, or **run one as a network
-service that other people use**, you must offer those users the corresponding
-source under the same licence. That second clause (AGPL §13) is the reason this
-licence rather than the GPL — for a self-hosted web application, "distribution"
-otherwise never happens, and the obligation would never bite.
-
-Running an unmodified copy for yourself, your household or your organisation
-carries no obligation at all. Neither does modifying it privately. The licence
-asks something of you only when you hand your modified version to others.
-
-Contributions ship under the same licence — see [CONTRIBUTING](CONTRIBUTING.md).
-Security reports: [SECURITY.md](SECURITY.md).
+Personal project; use at your own discretion.

SECURITY.md

@@ -1,77 +0,0 @@
-# Security Policy
-
-## Reporting a vulnerability
-
-**Please do not put vulnerability details in a public issue.**
-
-This project has no private disclosure channel yet. Until it does, open an
-issue on the repository that says only that you have a security report — no
-reproduction steps, no affected endpoint, no payload — and a maintainer will
-reply with a private contact to send the details to.
-
-That is a deliberately awkward first step, and it exists because the
-alternative is worse: an issue tracker is public the moment it is written to,
-and every self-hosted instance stays vulnerable until its operator has had a
-chance to update.
-
-Please include, once you have a private channel:
-
-- what an attacker can do, and what access they need to start
-- the version or commit you tested
-- reproduction steps
-
-## Scope — what this software actually handles
-
-FabledCurator is self-hosted and holds things worth stating plainly, because
-they shape what counts as a serious bug here:
-
-- **Platform credentials.** The app captures and stores session cookies for
-  third-party subscription sites (Patreon, SubscribeStar, Pixiv) so it can
-  download on the operator's behalf. These are live credentials for accounts
-  that usually carry a payment method. Anything that discloses them, decrypts
-  them, or lets one user of a shared instance read another's is high severity.
-- **An extension API key.** The Firefox extension authenticates to the backend
-  with a shared key. Anything that leaks it or lets it be bypassed is a way in.
-- **No authentication of its own.** This is the most important thing on this
-  page. FabledCurator has no login, no user accounts and no permission model —
-  there is no `User` table and no session auth anywhere in the backend. Every
-  HTTP client that can reach the port is the administrator, with full read and
-  write access to everything above, including the stored platform credentials.
-  Access control is entirely the operator's job, done at the network layer.
-  Reports that an unauthenticated caller can reach an endpoint are therefore
-  describing the design; reports that something *crosses the network boundary
-  the operator drew* — an SSRF, a request forgery that rides a browser the
-  operator already has open, a path that leaks state to an origin the operator
-  did not authorise — are in scope and are serious.
-- **Arbitrary media from the internet.** Downloaded files are decoded, hashed,
-  thumbnailed and fed to ML models. Anything that turns a hostile file into
-  code execution is in scope.
-
-## Deployment posture — read this before reporting
-
-FabledCurator is designed to run **inside a private network, over plain HTTP,
-reachable only by its operator**. It does not terminate TLS, redirect to
-HTTPS, or set HSTS; if you want transport security, terminate it at your
-reverse proxy. It also does not authenticate anyone — see above. These are
-documented design decisions, not oversights.
-
-Putting this on the public internet, with or without TLS, hands whoever finds
-it your Patreon, SubscribeStar and Pixiv sessions. A reverse proxy that adds
-TLS but not an authentication layer does not change that.
-
-Reports that reduce to "the application is served over HTTP", "there is no
-HSTS header", or "the API needs no credentials" describe those decisions
-rather than vulnerabilities. Reports that the operator can cause the software
-to do something destructive are usually also by design — the operator is the
-administrator of their own instance.
-
-What remains in scope is everything that crosses a boundary the software is
-actually supposed to hold: between untrusted downloaded content and the host,
-between a third-party origin and an operator's open browser session, and
-between the credentials at rest and anything that is not the operator.
-
-## Supported versions
-
-Fixes land on the `main` branch and reach the `:latest` image. There are no
-maintained release branches — the supported version is the current one, and
-the remedy for a security issue is to update.

alembic/versions/0001_initial_unified_schema.py

@@ -0,0 +1,277 @@
+"""initial unified schema
+
+Revision ID: 0001
+Revises:
+Create Date: 2026-05-13
+
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+from pgvector.sqlalchemy import Vector
+
+revision: str = "0001"
+down_revision: Union[str, None] = None
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.execute("CREATE EXTENSION IF NOT EXISTS vector")
+
+    op.create_table(
+        "artist",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("name", sa.String(length=255), nullable=False),
+        sa.Column("slug", sa.String(length=255), nullable=False),
+        sa.Column("notes", sa.Text(), nullable=True),
+        sa.Column("is_subscription", sa.Boolean(), nullable=False, server_default=sa.false()),
+        sa.Column("auto_check", sa.Boolean(), nullable=False, server_default=sa.true()),
+        sa.Column("check_interval_seconds", sa.Integer(), nullable=True),
+        sa.Column(
+            "created_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.func.now(),
+        ),
+        sa.PrimaryKeyConstraint("id", name="pk_artist"),
+        sa.UniqueConstraint("name", name="uq_artist_name"),
+        sa.UniqueConstraint("slug", name="uq_artist_slug"),
+    )
+
+    op.create_table(
+        "source",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("artist_id", sa.Integer(), nullable=False),
+        sa.Column("platform", sa.String(length=64), nullable=False),
+        sa.Column("url", sa.Text(), nullable=False),
+        sa.Column("enabled", sa.Boolean(), nullable=False, server_default=sa.true()),
+        sa.Column("config_overrides", sa.JSON(), nullable=True),
+        sa.Column("last_checked_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("last_error", sa.Text(), nullable=True),
+        sa.Column("check_interval_override", sa.Integer(), nullable=True),
+        sa.ForeignKeyConstraint(
+            ["artist_id"], ["artist.id"], name="fk_source_artist_id_artist", ondelete="CASCADE"
+        ),
+        sa.PrimaryKeyConstraint("id", name="pk_source"),
+    )
+    op.create_index("ix_source_artist_id", "source", ["artist_id"])
+
+    op.create_table(
+        "credential",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("platform", sa.String(length=64), nullable=False),
+        sa.Column("kind", sa.String(length=32), nullable=False),
+        sa.Column("encrypted_blob", sa.LargeBinary(), nullable=False),
+        sa.Column("status", sa.String(length=32), nullable=False, server_default="active"),
+        sa.Column(
+            "captured_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.func.now(),
+        ),
+        sa.Column("expires_at", sa.DateTime(timezone=True), nullable=True),
+        sa.PrimaryKeyConstraint("id", name="pk_credential"),
+        sa.UniqueConstraint("platform", name="uq_credential_platform"),
+    )
+
+    op.create_table(
+        "post",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("source_id", sa.Integer(), nullable=False),
+        sa.Column("external_post_id", sa.String(length=128), nullable=False),
+        sa.Column("post_url", sa.Text(), nullable=True),
+        sa.Column("post_title", sa.Text(), nullable=True),
+        sa.Column("post_date", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("raw_metadata", sa.JSON(), nullable=True),
+        sa.Column(
+            "downloaded_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.func.now(),
+        ),
+        sa.ForeignKeyConstraint(
+            ["source_id"], ["source.id"], name="fk_post_source_id_source", ondelete="CASCADE"
+        ),
+        sa.PrimaryKeyConstraint("id", name="pk_post"),
+        sa.UniqueConstraint("source_id", "external_post_id", name="uq_post_source_external_id"),
+    )
+    op.create_index("ix_post_source_id", "post", ["source_id"])
+
+    op.create_table(
+        "image_record",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("path", sa.Text(), nullable=False),
+        sa.Column("sha256", sa.String(length=64), nullable=False),
+        sa.Column("phash", sa.String(length=32), nullable=True),
+        sa.Column("size_bytes", sa.BigInteger(), nullable=False),
+        sa.Column("mime", sa.String(length=64), nullable=False),
+        sa.Column("width", sa.Integer(), nullable=True),
+        sa.Column("height", sa.Integer(), nullable=True),
+        sa.Column("thumbnail_path", sa.Text(), nullable=True),
+        sa.Column(
+            "origin",
+            sa.Enum(
+                "downloaded",
+                "imported_filesystem",
+                "uploaded",
+                name="origin_enum",
+            ),
+            nullable=False,
+        ),
+        sa.Column("primary_post_id", sa.Integer(), nullable=True),
+        sa.Column("wd14_predictions", sa.JSON(), nullable=True),
+        sa.Column("wd14_model_version", sa.String(length=128), nullable=True),
+        sa.Column("siglip_embedding", Vector(1152), nullable=True),
+        sa.Column("siglip_model_version", sa.String(length=128), nullable=True),
+        sa.Column("centroid_scores", sa.JSON(), nullable=True),
+        sa.Column(
+            "created_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.func.now(),
+        ),
+        sa.Column(
+            "updated_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.func.now(),
+        ),
+        sa.ForeignKeyConstraint(
+            ["primary_post_id"],
+            ["post.id"],
+            name="fk_image_record_primary_post_id_post",
+            ondelete="SET NULL",
+        ),
+        sa.PrimaryKeyConstraint("id", name="pk_image_record"),
+        sa.UniqueConstraint("path", name="uq_image_record_path"),
+        sa.UniqueConstraint("sha256", name="uq_image_record_sha256"),
+    )
+    op.create_index("ix_image_record_sha256", "image_record", ["sha256"])
+    op.create_index("ix_image_record_phash", "image_record", ["phash"])
+    op.create_index("ix_image_record_primary_post_id", "image_record", ["primary_post_id"])
+
+    op.create_table(
+        "image_provenance",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("image_record_id", sa.Integer(), nullable=False),
+        sa.Column("post_id", sa.Integer(), nullable=False),
+        sa.Column("source_id", sa.Integer(), nullable=False),
+        sa.Column("captured_metadata", sa.JSON(), nullable=True),
+        sa.Column(
+            "captured_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.func.now(),
+        ),
+        sa.ForeignKeyConstraint(
+            ["image_record_id"],
+            ["image_record.id"],
+            name="fk_image_provenance_image_record_id_image_record",
+            ondelete="CASCADE",
+        ),
+        sa.ForeignKeyConstraint(
+            ["post_id"],
+            ["post.id"],
+            name="fk_image_provenance_post_id_post",
+            ondelete="CASCADE",
+        ),
+        sa.ForeignKeyConstraint(
+            ["source_id"],
+            ["source.id"],
+            name="fk_image_provenance_source_id_source",
+            ondelete="CASCADE",
+        ),
+        sa.PrimaryKeyConstraint("id", name="pk_image_provenance"),
+    )
+    op.create_index("ix_image_provenance_image_record_id", "image_provenance", ["image_record_id"])
+    op.create_index("ix_image_provenance_post_id", "image_provenance", ["post_id"])
+    op.create_index("ix_image_provenance_source_id", "image_provenance", ["source_id"])
+
+    op.create_table(
+        "tag",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("name", sa.String(length=255), nullable=False),
+        sa.Column("namespace", sa.String(length=64), nullable=True),
+        sa.Column(
+            "created_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.func.now(),
+        ),
+        sa.PrimaryKeyConstraint("id", name="pk_tag"),
+        sa.UniqueConstraint("name", name="uq_tag_name"),
+    )
+    op.create_index("ix_tag_name", "tag", ["name"])
+    op.create_index("ix_tag_namespace", "tag", ["namespace"])
+
+    op.create_table(
+        "image_tag",
+        sa.Column("image_record_id", sa.Integer(), nullable=False),
+        sa.Column("tag_id", sa.Integer(), nullable=False),
+        sa.Column("source", sa.String(length=32), nullable=False, server_default="manual"),
+        sa.Column(
+            "created_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.func.now(),
+        ),
+        sa.ForeignKeyConstraint(
+            ["image_record_id"],
+            ["image_record.id"],
+            name="fk_image_tag_image_record_id_image_record",
+            ondelete="CASCADE",
+        ),
+        sa.ForeignKeyConstraint(
+            ["tag_id"], ["tag.id"], name="fk_image_tag_tag_id_tag", ondelete="CASCADE"
+        ),
+        sa.PrimaryKeyConstraint("image_record_id", "tag_id", name="pk_image_tag"),
+    )
+
+    op.create_table(
+        "download_event",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("source_id", sa.Integer(), nullable=False),
+        sa.Column("post_id", sa.Integer(), nullable=True),
+        sa.Column("status", sa.String(length=32), nullable=False),
+        sa.Column(
+            "started_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.func.now(),
+        ),
+        sa.Column("finished_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("bytes_downloaded", sa.BigInteger(), nullable=False, server_default="0"),
+        sa.Column("files_count", sa.Integer(), nullable=False, server_default="0"),
+        sa.Column("error", sa.Text(), nullable=True),
+        sa.ForeignKeyConstraint(
+            ["source_id"],
+            ["source.id"],
+            name="fk_download_event_source_id_source",
+            ondelete="CASCADE",
+        ),
+        sa.ForeignKeyConstraint(
+            ["post_id"],
+            ["post.id"],
+            name="fk_download_event_post_id_post",
+            ondelete="SET NULL",
+        ),
+        sa.PrimaryKeyConstraint("id", name="pk_download_event"),
+    )
+    op.create_index("ix_download_event_source_id", "download_event", ["source_id"])
+    op.create_index("ix_download_event_post_id", "download_event", ["post_id"])
+
+
+def downgrade() -> None:
+    op.drop_table("download_event")
+    op.drop_table("image_tag")
+    op.drop_table("tag")
+    op.drop_table("image_provenance")
+    op.drop_table("image_record")
+    op.execute("DROP TYPE IF EXISTS origin_enum")
+    op.drop_table("post")
+    op.drop_table("credential")
+    op.drop_table("source")
+    op.drop_table("artist")
+    op.execute("DROP EXTENSION IF EXISTS vector")

alembic/versions/0002_fc2a_tag_kinds_and_import_tasks.py

@@ -0,0 +1,208 @@
+"""fc2a: tag kinds, import_task, import_batch, integrity_status
+
+Revision ID: 0002
+Revises: 0001
+Create Date: 2026-05-14
+
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0002"
+down_revision: Union[str, None] = "0001"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+TAG_KINDS = (
+    "artist",
+    "character",
+    "fandom",
+    "general",
+    "series",
+    "archive",
+    "post",
+    "meta",
+    "rating",
+)
+
+
+def upgrade() -> None:
+    # --- Tag kind enum + fandom_id ---
+    tag_kind = sa.Enum(*TAG_KINDS, name="tag_kind")
+    tag_kind.create(op.get_bind(), checkfirst=True)
+
+    op.add_column(
+        "tag",
+        sa.Column("kind", tag_kind, nullable=False, server_default="general"),
+    )
+    op.add_column(
+        "tag",
+        sa.Column("fandom_id", sa.Integer(), nullable=True),
+    )
+    op.create_foreign_key(
+        "fk_tag_fandom_id_tag",
+        "tag",
+        "tag",
+        ["fandom_id"],
+        ["id"],
+        ondelete="SET NULL",
+    )
+
+    # Drop the old global uniqueness on name; add kind+fandom-aware uniqueness.
+    op.drop_constraint("uq_tag_name", "tag", type_="unique")
+    op.drop_index("ix_tag_name", table_name="tag")
+    op.execute(
+        """
+        CREATE UNIQUE INDEX uq_tag_name_kind_fandom
+          ON tag (name, kind, COALESCE(fandom_id, 0))
+        """
+    )
+
+    # CHECK: fandom_id is only allowed for character kind.
+    op.create_check_constraint(
+        "ck_tag_fandom_requires_character",
+        "tag",
+        "(fandom_id IS NULL) OR (kind = 'character')",
+    )
+
+    # Drop the old namespace column — superseded by kind.
+    op.drop_index("ix_tag_namespace", table_name="tag")
+    op.drop_column("tag", "namespace")
+
+    # --- ImportBatch ---
+    op.create_table(
+        "import_batch",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("triggered_by", sa.String(length=32), nullable=False),
+        sa.Column("source_path", sa.Text(), nullable=False),
+        sa.Column("scan_mode", sa.String(length=16), nullable=False),
+        sa.Column(
+            "started_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.func.now(),
+        ),
+        sa.Column("finished_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("total_files", sa.Integer(), nullable=False, server_default="0"),
+        sa.Column("imported", sa.Integer(), nullable=False, server_default="0"),
+        sa.Column("skipped", sa.Integer(), nullable=False, server_default="0"),
+        sa.Column("failed", sa.Integer(), nullable=False, server_default="0"),
+        sa.Column("status", sa.String(length=16), nullable=False, server_default="running"),
+        sa.PrimaryKeyConstraint("id", name="pk_import_batch"),
+    )
+    op.create_index("ix_import_batch_status", "import_batch", ["status"])
+
+    # --- ImportTask ---
+    op.create_table(
+        "import_task",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("batch_id", sa.Integer(), nullable=False),
+        sa.Column("source_path", sa.Text(), nullable=False),
+        sa.Column("task_type", sa.String(length=16), nullable=False),
+        sa.Column("status", sa.String(length=16), nullable=False, server_default="pending"),
+        sa.Column("result_image_id", sa.Integer(), nullable=True),
+        sa.Column("error", sa.Text(), nullable=True),
+        sa.Column("size_bytes", sa.BigInteger(), nullable=True),
+        sa.Column(
+            "created_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.func.now(),
+        ),
+        sa.Column("started_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("finished_at", sa.DateTime(timezone=True), nullable=True),
+        sa.ForeignKeyConstraint(
+            ["batch_id"],
+            ["import_batch.id"],
+            name="fk_import_task_batch_id_import_batch",
+            ondelete="CASCADE",
+        ),
+        sa.ForeignKeyConstraint(
+            ["result_image_id"],
+            ["image_record.id"],
+            name="fk_import_task_result_image_id_image_record",
+            ondelete="SET NULL",
+        ),
+        sa.PrimaryKeyConstraint("id", name="pk_import_task"),
+    )
+    op.create_index("ix_import_task_batch_id", "import_task", ["batch_id"])
+    op.create_index("ix_import_task_status", "import_task", ["status"])
+    op.create_index(
+        "ix_import_task_created_at_desc",
+        "import_task",
+        [sa.text("created_at DESC")],
+    )
+
+    # --- ImportSettings (single-row table) ---
+    op.create_table(
+        "import_settings",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("import_scan_path", sa.Text(), nullable=False, server_default="/import"),
+        sa.Column("min_width", sa.Integer(), nullable=False, server_default="0"),
+        sa.Column("min_height", sa.Integer(), nullable=False, server_default="0"),
+        sa.Column(
+            "skip_transparent", sa.Boolean(), nullable=False, server_default=sa.false()
+        ),
+        sa.Column(
+            "transparency_threshold",
+            sa.Float(),
+            nullable=False,
+            server_default="0.9",
+        ),
+        sa.Column(
+            "skip_single_color", sa.Boolean(), nullable=False, server_default=sa.false()
+        ),
+        sa.Column(
+            "single_color_threshold",
+            sa.Float(),
+            nullable=False,
+            server_default="0.95",
+        ),
+        sa.Column("single_color_tolerance", sa.Integer(), nullable=False, server_default="30"),
+        sa.PrimaryKeyConstraint("id", name="pk_import_settings"),
+        sa.CheckConstraint("id = 1", name="ck_import_settings_singleton"),
+    )
+    # Seed the single row immediately so callers can always SELECT id=1.
+    op.execute("INSERT INTO import_settings (id) VALUES (1)")
+
+    # --- ImageRecord additions ---
+    op.add_column(
+        "image_record",
+        sa.Column(
+            "integrity_status",
+            sa.String(length=24),
+            nullable=False,
+            server_default="unknown",
+        ),
+    )
+    op.create_index(
+        "ix_image_record_integrity_status",
+        "image_record",
+        ["integrity_status"],
+    )
+
+
+def downgrade() -> None:
+    op.drop_index("ix_image_record_integrity_status", table_name="image_record")
+    op.drop_column("image_record", "integrity_status")
+
+    op.drop_table("import_settings")
+    op.drop_index("ix_import_task_created_at_desc", table_name="import_task")
+    op.drop_index("ix_import_task_status", table_name="import_task")
+    op.drop_index("ix_import_task_batch_id", table_name="import_task")
+    op.drop_table("import_task")
+    op.drop_index("ix_import_batch_status", table_name="import_batch")
+    op.drop_table("import_batch")
+
+    op.drop_constraint("ck_tag_fandom_requires_character", "tag", type_="check")
+    op.execute("DROP INDEX uq_tag_name_kind_fandom")
+    op.add_column("tag", sa.Column("namespace", sa.String(length=64), nullable=True))
+    op.create_index("ix_tag_namespace", "tag", ["namespace"])
+    op.create_index("ix_tag_name", "tag", ["name"], unique=False)
+    op.create_unique_constraint("uq_tag_name", "tag", ["name"])
+    op.drop_constraint("fk_tag_fandom_id_tag", "tag", type_="foreignkey")
+    op.drop_column("tag", "fandom_id")
+    op.drop_column("tag", "kind")
+    sa.Enum(name="tag_kind").drop(op.get_bind(), checkfirst=True)

alembic/versions/0003_fc2b_ml_pipeline.py

@@ -0,0 +1,172 @@
+"""fc2b: ML pipeline — allowlist, aliases, centroids, ml_settings
+
+Revision ID: 0003
+Revises: 0002
+Create Date: 2026-05-15
+
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+from pgvector.sqlalchemy import Vector
+
+revision: str = "0003"
+down_revision: Union[str, None] = "0002"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # 3.1 rename wd14_* -> tagger_*
+    op.alter_column("image_record", "wd14_predictions", new_column_name="tagger_predictions")
+    op.alter_column(
+        "image_record", "wd14_model_version", new_column_name="tagger_model_version"
+    )
+
+    # 3.2 tag_allowlist
+    op.create_table(
+        "tag_allowlist",
+        sa.Column("tag_id", sa.Integer(), nullable=False),
+        sa.Column(
+            "min_confidence", sa.Float(), nullable=False, server_default="0.95"
+        ),
+        sa.Column(
+            "added_at", sa.DateTime(timezone=True), nullable=False,
+            server_default=sa.func.now(),
+        ),
+        sa.ForeignKeyConstraint(
+            ["tag_id"], ["tag.id"], name="fk_tag_allowlist_tag_id_tag",
+            ondelete="CASCADE",
+        ),
+        sa.PrimaryKeyConstraint("tag_id", name="pk_tag_allowlist"),
+        sa.CheckConstraint(
+            "min_confidence > 0 AND min_confidence <= 1",
+            name="ck_tag_allowlist_confidence_range",
+        ),
+    )
+
+    # 3.3 tag_suggestion_rejection
+    op.create_table(
+        "tag_suggestion_rejection",
+        sa.Column("image_record_id", sa.Integer(), nullable=False),
+        sa.Column("tag_id", sa.Integer(), nullable=False),
+        sa.Column(
+            "rejected_at", sa.DateTime(timezone=True), nullable=False,
+            server_default=sa.func.now(),
+        ),
+        sa.ForeignKeyConstraint(
+            ["image_record_id"], ["image_record.id"],
+            name="fk_tsr_image_record_id_image_record", ondelete="CASCADE",
+        ),
+        sa.ForeignKeyConstraint(
+            ["tag_id"], ["tag.id"], name="fk_tsr_tag_id_tag", ondelete="CASCADE",
+        ),
+        sa.PrimaryKeyConstraint(
+            "image_record_id", "tag_id", name="pk_tag_suggestion_rejection"
+        ),
+    )
+    op.create_index(
+        "ix_tag_suggestion_rejection_tag", "tag_suggestion_rejection", ["tag_id"]
+    )
+
+    # 3.4 tag_alias
+    op.create_table(
+        "tag_alias",
+        sa.Column("alias_string", sa.String(length=255), nullable=False),
+        sa.Column("alias_category", sa.String(length=32), nullable=False),
+        sa.Column("canonical_tag_id", sa.Integer(), nullable=False),
+        sa.Column(
+            "created_at", sa.DateTime(timezone=True), nullable=False,
+            server_default=sa.func.now(),
+        ),
+        sa.ForeignKeyConstraint(
+            ["canonical_tag_id"], ["tag.id"],
+            name="fk_tag_alias_canonical_tag_id_tag", ondelete="CASCADE",
+        ),
+        sa.PrimaryKeyConstraint(
+            "alias_string", "alias_category", name="pk_tag_alias"
+        ),
+    )
+    op.create_index("ix_tag_alias_canonical", "tag_alias", ["canonical_tag_id"])
+
+    # 3.5 tag_reference_embedding (centroids)
+    op.create_table(
+        "tag_reference_embedding",
+        sa.Column("tag_id", sa.Integer(), nullable=False),
+        sa.Column("embedding", Vector(1152), nullable=False),
+        sa.Column("reference_count", sa.Integer(), nullable=False),
+        sa.Column("model_version", sa.String(length=128), nullable=False),
+        sa.Column(
+            "updated_at", sa.DateTime(timezone=True), nullable=False,
+            server_default=sa.func.now(),
+        ),
+        sa.ForeignKeyConstraint(
+            ["tag_id"], ["tag.id"],
+            name="fk_tag_reference_embedding_tag_id_tag", ondelete="CASCADE",
+        ),
+        sa.PrimaryKeyConstraint("tag_id", name="pk_tag_reference_embedding"),
+    )
+
+    # 3.6 ml_settings singleton
+    op.create_table(
+        "ml_settings",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column(
+            "suggestion_threshold_artist", sa.Float(), nullable=False,
+            server_default="0.30",
+        ),
+        sa.Column(
+            "suggestion_threshold_character", sa.Float(), nullable=False,
+            server_default="0.50",
+        ),
+        sa.Column(
+            "suggestion_threshold_copyright", sa.Float(), nullable=False,
+            server_default="0.50",
+        ),
+        sa.Column(
+            "suggestion_threshold_general", sa.Float(), nullable=False,
+            server_default="0.95",
+        ),
+        sa.Column(
+            "centroid_similarity_threshold", sa.Float(), nullable=False,
+            server_default="0.55",
+        ),
+        sa.Column(
+            "min_reference_images", sa.Integer(), nullable=False,
+            server_default="5",
+        ),
+        sa.Column(
+            "tagger_model_version", sa.String(length=128), nullable=False,
+            server_default="camie-tagger-v2",
+        ),
+        sa.Column(
+            "embedder_model_version", sa.String(length=128), nullable=False,
+            server_default="siglip-so400m-patch14-384",
+        ),
+        sa.Column(
+            "updated_at", sa.DateTime(timezone=True), nullable=False,
+            server_default=sa.func.now(),
+        ),
+        sa.PrimaryKeyConstraint("id", name="pk_ml_settings"),
+        sa.CheckConstraint("id = 1", name="ck_ml_settings_singleton"),
+    )
+    op.execute("INSERT INTO ml_settings (id) VALUES (1)")
+
+
+def downgrade() -> None:
+    op.drop_table("ml_settings")
+    op.drop_table("tag_reference_embedding")
+    op.drop_index("ix_tag_alias_canonical", table_name="tag_alias")
+    op.drop_table("tag_alias")
+    op.drop_index(
+        "ix_tag_suggestion_rejection_tag", table_name="tag_suggestion_rejection"
+    )
+    op.drop_table("tag_suggestion_rejection")
+    op.drop_table("tag_allowlist")
+    op.alter_column(
+        "image_record", "tagger_model_version", new_column_name="wd14_model_version"
+    )
+    op.alter_column(
+        "image_record", "tagger_predictions", new_column_name="wd14_predictions"
+    )

alembic/versions/0004_fc2c_i_tsm_system_rows.py

@@ -0,0 +1,23 @@
+"""fc2c-i: enable tsm_system_rows for scalable random sampling
+
+Revision ID: 0004
+Revises: 0003
+Create Date: 2026-05-15
+
+"""
+from typing import Sequence, Union
+
+from alembic import op
+
+revision: str = "0004"
+down_revision: Union[str, None] = "0003"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.execute("CREATE EXTENSION IF NOT EXISTS tsm_system_rows")
+
+
+def downgrade() -> None:
+    op.execute("DROP EXTENSION IF EXISTS tsm_system_rows")

alembic/versions/0005_fc2c_iii_a_series_page.py

@@ -0,0 +1,50 @@
+"""fc2c-iii-a: series_page ordered membership
+
+Revision ID: 0005
+Revises: 0004
+Create Date: 2026-05-16
+
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0005"
+down_revision: Union[str, None] = "0004"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "series_page",
+        sa.Column("id", sa.Integer(), nullable=False),
+        sa.Column("series_tag_id", sa.Integer(), nullable=False),
+        sa.Column("image_id", sa.Integer(), nullable=False),
+        sa.Column("page_number", sa.Integer(), nullable=False),
+        sa.Column(
+            "created_at", sa.DateTime(timezone=True),
+            nullable=False, server_default=sa.func.now(),
+        ),
+        sa.Column(
+            "updated_at", sa.DateTime(timezone=True),
+            nullable=False, server_default=sa.func.now(),
+        ),
+        sa.ForeignKeyConstraint(
+            ["series_tag_id"], ["tag.id"], ondelete="CASCADE"
+        ),
+        sa.ForeignKeyConstraint(
+            ["image_id"], ["image_record.id"], ondelete="CASCADE"
+        ),
+        sa.PrimaryKeyConstraint("id"),
+        sa.UniqueConstraint("image_id", name="uq_series_page_image"),
+    )
+    op.create_index(
+        "ix_series_page_series_tag_id", "series_page", ["series_tag_id"]
+    )
+
+
+def downgrade() -> None:
+    op.drop_index("ix_series_page_series_tag_id", table_name="series_page")
+    op.drop_table("series_page")

alembic/versions/0006_fc2d_phash_threshold.py

@@ -0,0 +1,30 @@
+"""fc2d: import_settings.phash_threshold
+
+Revision ID: 0006
+Revises: 0005
+Create Date: 2026-05-17
+
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0006"
+down_revision: Union[str, None] = "0005"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "import_settings",
+        sa.Column(
+            "phash_threshold", sa.Integer(),
+            nullable=False, server_default="10",
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("import_settings", "phash_threshold")

alembic/versions/0007_fc2d_post_metadata_fields.py

@@ -0,0 +1,31 @@
+"""fc2d-iv: post.description + post.attachment_count
+
+Revision ID: 0007
+Revises: 0006
+Create Date: 2026-05-18
+
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0007"
+down_revision: Union[str, None] = "0006"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "post", sa.Column("description", sa.Text(), nullable=True)
+    )
+    op.add_column(
+        "post",
+        sa.Column("attachment_count", sa.Integer(), nullable=True),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("post", "attachment_count")
+    op.drop_column("post", "description")

alembic/versions/0008_fc2d_vii_c_artist_deconfliction.py

@@ -0,0 +1,52 @@
+"""fc2d-vii-c: image_record.artist_id + backfill + drop artist tags
+
+Revision ID: 0008
+Revises: 0007
+Create Date: 2026-05-18
+
+Internal forward-correctness migration (the big legacy-import migration
+stays deferred). downgrade() does NOT recreate deleted artist tags;
+downgrade is dev-only and the data is reconstructable by re-import.
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+from backend.app.utils.artist_backfill import (
+    BACKFILL_PRIMARY_SQL,
+    BACKFILL_PROVENANCE_SQL,
+    BACKFILL_TAG_SQL,
+    DELETE_ARTIST_TAGS_SQL,
+)
+
+revision: str = "0008"
+down_revision: Union[str, None] = "0007"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "image_record",
+        sa.Column("artist_id", sa.Integer(), nullable=True),
+    )
+    op.create_foreign_key(
+        "fk_image_record_artist_id", "image_record", "artist",
+        ["artist_id"], ["id"], ondelete="SET NULL",
+    )
+    op.create_index(
+        "ix_image_record_artist_id", "image_record", ["artist_id"],
+    )
+    op.execute(BACKFILL_PRIMARY_SQL)
+    op.execute(BACKFILL_PROVENANCE_SQL)
+    op.execute(BACKFILL_TAG_SQL)
+    op.execute(DELETE_ARTIST_TAGS_SQL)
+
+
+def downgrade() -> None:
+    op.drop_index("ix_image_record_artist_id", table_name="image_record")
+    op.drop_constraint(
+        "fk_image_record_artist_id", "image_record", type_="foreignkey"
+    )
+    op.drop_column("image_record", "artist_id")

alembic/versions/0009_fc2d_iii_post_attachment.py

@@ -0,0 +1,68 @@
+"""fc2d-iii: post_attachment + import_batch.attachments
+
+Revision ID: 0009
+Revises: 0008
+Create Date: 2026-05-19
+
+Internal forward-correctness migration (big legacy-import migration
+stays deferred). No backfill — no attachments exist yet.
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0009"
+down_revision: Union[str, None] = "0008"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "post_attachment",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column(
+            "post_id", sa.Integer(),
+            sa.ForeignKey("post.id", ondelete="SET NULL"), nullable=True,
+        ),
+        sa.Column(
+            "artist_id", sa.Integer(),
+            sa.ForeignKey("artist.id", ondelete="SET NULL"), nullable=True,
+        ),
+        sa.Column("sha256", sa.String(64), nullable=False),
+        sa.Column("path", sa.Text(), nullable=False),
+        sa.Column("original_filename", sa.Text(), nullable=False),
+        sa.Column("ext", sa.String(32), nullable=False),
+        sa.Column("mime", sa.String(128), nullable=True),
+        sa.Column("size_bytes", sa.BigInteger(), nullable=False),
+        sa.Column(
+            "captured_at", sa.DateTime(timezone=True),
+            server_default=sa.func.now(), nullable=False,
+        ),
+    )
+    op.create_index(
+        "ix_post_attachment_sha256", "post_attachment", ["sha256"],
+        unique=True,
+    )
+    op.create_index(
+        "ix_post_attachment_post_id", "post_attachment", ["post_id"],
+    )
+    op.create_index(
+        "ix_post_attachment_artist_id", "post_attachment", ["artist_id"],
+    )
+    op.add_column(
+        "import_batch",
+        sa.Column(
+            "attachments", sa.Integer(), nullable=False,
+            server_default="0",
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("import_batch", "attachments")
+    op.drop_index("ix_post_attachment_artist_id", table_name="post_attachment")
+    op.drop_index("ix_post_attachment_post_id", table_name="post_attachment")
+    op.drop_index("ix_post_attachment_sha256", table_name="post_attachment")
+    op.drop_table("post_attachment")

alembic/versions/0010_fc3a_source_unique_artist_platform_url.py

@@ -0,0 +1,32 @@
+"""fc3a: unique(source.artist_id, source.platform, source.url)
+
+Revision ID: 0010
+Revises: 0009
+Create Date: 2026-05-20
+
+Enforces FC-3a's dedup invariant at the DB level. No backfill — no
+existing rows are expected to collide; if they do the migration will
+fail loudly (intended).
+"""
+from typing import Sequence, Union
+
+from alembic import op
+
+revision: str = "0010"
+down_revision: Union[str, None] = "0009"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_unique_constraint(
+        "uq_source_artist_platform_url",
+        "source",
+        ["artist_id", "platform", "url"],
+    )
+
+
+def downgrade() -> None:
+    op.drop_constraint(
+        "uq_source_artist_platform_url", "source", type_="unique"
+    )

alembic/versions/0011_fc3b_credential_schema_alignment.py

@@ -0,0 +1,41 @@
+"""fc3b: rename credential.kind -> credential_type, drop status, add last_verified
+
+Revision ID: 0011
+Revises: 0010
+Create Date: 2026-05-20
+
+Aligns the credential table with the GallerySubscriber wire-field names
+so the existing browser extension can POST to FC unmodified. Greenfield —
+no rows exist in production yet, so no data preservation logic is
+needed; the rename uses ALTER COLUMN rather than copy-then-drop.
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0011"
+down_revision: Union[str, None] = "0010"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.alter_column("credential", "kind", new_column_name="credential_type")
+    op.drop_column("credential", "status")
+    op.add_column(
+        "credential",
+        sa.Column("last_verified", sa.DateTime(timezone=True), nullable=True),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("credential", "last_verified")
+    op.add_column(
+        "credential",
+        sa.Column(
+            "status", sa.String(length=32), nullable=False,
+            server_default="active",
+        ),
+    )
+    op.alter_column("credential", "credential_type", new_column_name="kind")

alembic/versions/0012_fc3b_app_setting.py

@@ -0,0 +1,36 @@
+"""fc3b: app_setting key/value table
+
+Revision ID: 0012
+Revises: 0011
+Create Date: 2026-05-20
+
+A simple key/value table for small app settings that don't fit
+ImportSettings. Initially seeds only `extension_api_key` (done in
+create_app on first boot — not in the migration, to keep it
+deterministic and independent of randomness).
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0012"
+down_revision: Union[str, None] = "0011"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "app_setting",
+        sa.Column("key", sa.String(length=64), primary_key=True),
+        sa.Column("value", sa.Text(), nullable=False),
+        sa.Column(
+            "updated_at", sa.DateTime(timezone=True),
+            nullable=False, server_default=sa.func.now(),
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_table("app_setting")

alembic/versions/0013_fc3c_download_event_metadata.py

@@ -0,0 +1,52 @@
+"""fc3c: download_event.metadata + import_settings downloader fields
+
+Revision ID: 0013
+Revises: 0012
+Create Date: 2026-05-20
+
+Additive only. download_event.metadata is the rich JSONB blob FC-3c
+populates per run (run_stats, stdout/stderr, quarantined paths, import
+summary). import_settings gains two operator-tunable downloader knobs:
+download_rate_limit_seconds (gallery-dl extractor.sleep) and
+download_validate_files (toggle the magic-byte validator).
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+from sqlalchemy.dialects import postgresql
+
+revision: str = "0013"
+down_revision: Union[str, None] = "0012"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "download_event",
+        sa.Column(
+            "metadata", postgresql.JSONB,
+            nullable=False, server_default=sa.text("'{}'::jsonb"),
+        ),
+    )
+    op.add_column(
+        "import_settings",
+        sa.Column(
+            "download_rate_limit_seconds", sa.Float(),
+            nullable=False, server_default="3.0",
+        ),
+    )
+    op.add_column(
+        "import_settings",
+        sa.Column(
+            "download_validate_files", sa.Boolean(),
+            nullable=False, server_default=sa.true(),
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("import_settings", "download_validate_files")
+    op.drop_column("import_settings", "download_rate_limit_seconds")
+    op.drop_column("download_event", "metadata")

alembic/versions/0014_fc3d_scheduling.py

@@ -0,0 +1,58 @@
+"""fc3d: scheduling + source health columns
+
+Revision ID: 0014
+Revises: 0013
+Create Date: 2026-05-21
+
+Additive only. source.consecutive_failures (default 0, DownloadService
+finalize hook owns the writes). import_settings gains the three
+scheduling knobs (global default interval, event retention, failure
+warning threshold).
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0014"
+down_revision: Union[str, None] = "0013"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "source",
+        sa.Column(
+            "consecutive_failures", sa.Integer(),
+            nullable=False, server_default="0",
+        ),
+    )
+    op.add_column(
+        "import_settings",
+        sa.Column(
+            "download_schedule_default_seconds", sa.Integer(),
+            nullable=False, server_default="28800",
+        ),
+    )
+    op.add_column(
+        "import_settings",
+        sa.Column(
+            "download_event_retention_days", sa.Integer(),
+            nullable=False, server_default="90",
+        ),
+    )
+    op.add_column(
+        "import_settings",
+        sa.Column(
+            "download_failure_warning_threshold", sa.Integer(),
+            nullable=False, server_default="5",
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("import_settings", "download_failure_warning_threshold")
+    op.drop_column("import_settings", "download_event_retention_days")
+    op.drop_column("import_settings", "download_schedule_default_seconds")
+    op.drop_column("source", "consecutive_failures")

alembic/versions/0015_fc5_migration_run.py

@@ -0,0 +1,51 @@
+"""fc5: migration_run table
+
+Revision ID: 0015
+Revises: 0014
+Create Date: 2026-05-22
+
+Additive only. New table tracks each invocation of the FC-5 migration
+tooling (backup, gs, ir, ml_queue, verify, rollback). kind/status are
+plain String(32) — values validated at the API layer per the spec, not
+a Postgres ENUM (so adding kinds later doesn't need a schema migration).
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+from sqlalchemy.dialects import postgresql
+
+revision: str = "0015"
+down_revision: Union[str, None] = "0014"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "migration_run",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column("kind", sa.String(32), nullable=False, index=True),
+        sa.Column("status", sa.String(32), nullable=False, index=True),
+        sa.Column(
+            "dry_run", sa.Boolean(), nullable=False, server_default=sa.false(),
+        ),
+        sa.Column(
+            "started_at", sa.DateTime(timezone=True),
+            nullable=False, server_default=sa.func.now(),
+        ),
+        sa.Column("finished_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column(
+            "counts", postgresql.JSONB,
+            nullable=False, server_default=sa.text("'{}'::jsonb"),
+        ),
+        sa.Column("error", sa.Text(), nullable=True),
+        sa.Column(
+            "metadata", postgresql.JSONB,
+            nullable=False, server_default=sa.text("'{}'::jsonb"),
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_table("migration_run")

alembic/versions/0016_fc3i_task_run.py

@@ -0,0 +1,86 @@
+"""fc3i: task_run table
+
+Revision ID: 0016
+Revises: 0015
+Create Date: 2026-05-24
+
+Additive only. New table records every Celery task attempt via signal
+handlers (backend.app.celery_signals). Status is plain String(16) not
+Postgres ENUM (per feedback_check_existing_enums: ENUM columns hard-
+fail at INSERT, String columns extend cleanly).
+
+Composite indexes anticipate the three dashboard panes:
+- (queue, started_at desc)   — per-lane recent activity
+- (status, started_at desc)  — recent failures pane
+- (task_name, started_at desc) — drill-down by task
+
+Indexed columns get individual indexes via `index=True` on the model;
+the composites below cover the multi-column lookups.
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0016"
+down_revision: Union[str, None] = "0015"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "task_run",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column("celery_task_id", sa.String(length=64), nullable=False),
+        sa.Column("queue", sa.String(length=32), nullable=False),
+        sa.Column("task_name", sa.String(length=128), nullable=False),
+        sa.Column("target_id", sa.Integer(), nullable=True),
+        sa.Column("started_at", sa.DateTime(timezone=True), nullable=False),
+        sa.Column("finished_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("duration_ms", sa.Integer(), nullable=True),
+        sa.Column(
+            "status", sa.String(length=16), nullable=False,
+            server_default="running",
+        ),
+        sa.Column("error_type", sa.String(length=128), nullable=True),
+        sa.Column("error_message", sa.Text(), nullable=True),
+        sa.Column("retry_count", sa.Integer(), nullable=True),
+        sa.Column("worker_hostname", sa.String(length=128), nullable=True),
+        sa.Column("args_summary", sa.String(length=255), nullable=True),
+    )
+
+    # Single-column indexes (matches Mapped[...].index=True on model).
+    op.create_index("ix_task_run_celery_task_id", "task_run", ["celery_task_id"])
+    op.create_index("ix_task_run_queue", "task_run", ["queue"])
+    op.create_index("ix_task_run_task_name", "task_run", ["task_name"])
+    op.create_index("ix_task_run_started_at", "task_run", ["started_at"])
+    op.create_index("ix_task_run_finished_at", "task_run", ["finished_at"])
+    op.create_index("ix_task_run_status", "task_run", ["status"])
+
+    # Composite indexes for dashboard query patterns.
+    op.create_index(
+        "ix_task_run_queue_started",
+        "task_run", ["queue", sa.text("started_at DESC")],
+    )
+    op.create_index(
+        "ix_task_run_status_started",
+        "task_run", ["status", sa.text("started_at DESC")],
+    )
+    op.create_index(
+        "ix_task_run_name_started",
+        "task_run", ["task_name", sa.text("started_at DESC")],
+    )
+
+
+def downgrade() -> None:
+    op.drop_index("ix_task_run_name_started", table_name="task_run")
+    op.drop_index("ix_task_run_status_started", table_name="task_run")
+    op.drop_index("ix_task_run_queue_started", table_name="task_run")
+    op.drop_index("ix_task_run_status", table_name="task_run")
+    op.drop_index("ix_task_run_finished_at", table_name="task_run")
+    op.drop_index("ix_task_run_started_at", table_name="task_run")
+    op.drop_index("ix_task_run_task_name", table_name="task_run")
+    op.drop_index("ix_task_run_queue", table_name="task_run")
+    op.drop_index("ix_task_run_celery_task_id", table_name="task_run")
+    op.drop_table("task_run")

alembic/versions/0017_fc3h_backup_run.py

@@ -0,0 +1,82 @@
+"""fc3h: backup_run table
+
+Revision ID: 0017
+Revises: 0016
+Create Date: 2026-05-24
+
+Additive. New table records every backup/restore attempt with artifact
+metadata. Lifecycle tracking lives in task_run from FC-3i; this is
+artifact-only (paths, sizes, tag, restore lineage).
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0017"
+down_revision: Union[str, None] = "0016"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "backup_run",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column("kind", sa.String(length=16), nullable=False),
+        sa.Column(
+            "status", sa.String(length=16), nullable=False,
+            server_default="pending",
+        ),
+        sa.Column("tag", sa.String(length=64), nullable=True),
+        sa.Column("triggered_by", sa.String(length=32), nullable=False),
+        sa.Column("started_at", sa.DateTime(timezone=True), nullable=False),
+        sa.Column("finished_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("sql_path", sa.Text(), nullable=True),
+        sa.Column("tar_path", sa.Text(), nullable=True),
+        sa.Column("size_bytes", sa.BigInteger(), nullable=True),
+        sa.Column("error", sa.Text(), nullable=True),
+        sa.Column(
+            "manifest", sa.JSON(), nullable=False, server_default="{}",
+        ),
+        sa.Column(
+            "restored_from_id", sa.Integer(),
+            sa.ForeignKey("backup_run.id", ondelete="SET NULL"),
+            nullable=True,
+        ),
+    )
+
+    # Single-column indexes (matches Mapped[...].index=True).
+    op.create_index("ix_backup_run_kind", "backup_run", ["kind"])
+    op.create_index("ix_backup_run_status", "backup_run", ["status"])
+    op.create_index("ix_backup_run_tag", "backup_run", ["tag"])
+    op.create_index("ix_backup_run_started_at", "backup_run", ["started_at"])
+    op.create_index("ix_backup_run_finished_at", "backup_run", ["finished_at"])
+
+    # Composite indexes for dashboard query patterns.
+    op.create_index(
+        "ix_backup_run_kind_started",
+        "backup_run", ["kind", sa.text("started_at DESC")],
+    )
+    op.create_index(
+        "ix_backup_run_status_finished",
+        "backup_run", ["status", sa.text("finished_at DESC")],
+    )
+    # Partial index: only tagged rows participate in retention-exempt query.
+    op.create_index(
+        "ix_backup_run_tag_partial",
+        "backup_run", ["tag"],
+        postgresql_where=sa.text("tag IS NOT NULL"),
+    )
+
+
+def downgrade() -> None:
+    op.drop_index("ix_backup_run_tag_partial", table_name="backup_run")
+    op.drop_index("ix_backup_run_status_finished", table_name="backup_run")
+    op.drop_index("ix_backup_run_kind_started", table_name="backup_run")
+    op.drop_index("ix_backup_run_finished_at", table_name="backup_run")
+    op.drop_index("ix_backup_run_started_at", table_name="backup_run")
+    op.drop_index("ix_backup_run_tag", table_name="backup_run")
+    op.drop_index("ix_backup_run_status", table_name="backup_run")
+    op.drop_index("ix_backup_run_kind", table_name="backup_run")
+    op.drop_table("backup_run")

alembic/versions/0018_fc3h_backup_settings.py

@@ -0,0 +1,62 @@
+"""fc3h: backup_* knobs on import_settings
+
+Revision ID: 0018
+Revises: 0017
+Create Date: 2026-05-24
+
+Adds four columns to the singleton import_settings row:
+  - backup_db_nightly_enabled (default False — opt-in)
+  - backup_db_nightly_hour_utc (default 3)
+  - backup_db_keep_last_n (default 14)
+  - backup_images_keep_last_n (default 3)
+
+server_default ensures the singleton row is backfilled in place
+without an UPDATE statement.
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0018"
+down_revision: Union[str, None] = "0017"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "import_settings",
+        sa.Column(
+            "backup_db_nightly_enabled", sa.Boolean(),
+            nullable=False, server_default=sa.false(),
+        ),
+    )
+    op.add_column(
+        "import_settings",
+        sa.Column(
+            "backup_db_nightly_hour_utc", sa.Integer(),
+            nullable=False, server_default="3",
+        ),
+    )
+    op.add_column(
+        "import_settings",
+        sa.Column(
+            "backup_db_keep_last_n", sa.Integer(),
+            nullable=False, server_default="14",
+        ),
+    )
+    op.add_column(
+        "import_settings",
+        sa.Column(
+            "backup_images_keep_last_n", sa.Integer(),
+            nullable=False, server_default="3",
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("import_settings", "backup_images_keep_last_n")
+    op.drop_column("import_settings", "backup_db_keep_last_n")
+    op.drop_column("import_settings", "backup_db_nightly_hour_utc")
+    op.drop_column("import_settings", "backup_db_nightly_enabled")

alembic/versions/0019_import_batch_refreshed.py

@@ -0,0 +1,38 @@
+"""import_batch.refreshed counter for deep-scan sidecar re-application
+
+Revision ID: 0019
+Revises: 0018
+Create Date: 2026-05-25
+
+Adds a `refreshed` counter to `import_batch`, mirroring the existing
+`imported`/`skipped`/`failed`/`attachments` columns. Deep scan now
+re-applies sidecar metadata to already-imported files (the IR feature
+that didn't make the FC port the first time); a "refreshed" outcome
+increments this counter so the UI can surface "X new, Y refreshed"
+instead of the misleading "Scan complete — no new files" message.
+
+server_default=0 backfills existing rows in place — no UPDATE needed.
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0019"
+down_revision: Union[str, None] = "0018"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "import_batch",
+        sa.Column(
+            "refreshed", sa.Integer(),
+            nullable=False, server_default=sa.text("0"),
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("import_batch", "refreshed")

alembic/versions/0020_library_audit_run.py

@@ -0,0 +1,65 @@
+"""fc-cleanup: library_audit_run table for async transparency/single_color audits
+
+Revision ID: 0020
+Revises: 0019
+Create Date: 2026-05-26
+
+The table backs the async audit lifecycle: rule + params snapshot, status
+state machine ('running' → 'ready' → 'applied'/'cancelled'/'error'), and
+the matched_ids JSONB array that the apply step deletes. Capped at 50k IDs
+per row by the scan task (oversize = rule too aggressive, operator narrows
+before re-running).
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+from sqlalchemy.dialects import postgresql
+
+revision: str = "0020"
+down_revision: Union[str, None] = "0019"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "library_audit_run",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column("rule", sa.String(32), nullable=False),
+        sa.Column("params", postgresql.JSONB(astext_type=sa.Text()), nullable=False),
+        sa.Column(
+            "status", sa.String(16),
+            nullable=False, server_default="running",
+        ),
+        sa.Column(
+            "started_at", sa.DateTime(timezone=True),
+            nullable=False, server_default=sa.func.now(),
+        ),
+        sa.Column("finished_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column(
+            "scanned_count", sa.Integer(),
+            nullable=False, server_default="0",
+        ),
+        sa.Column(
+            "matched_count", sa.Integer(),
+            nullable=False, server_default="0",
+        ),
+        sa.Column(
+            "matched_ids", postgresql.JSONB(astext_type=sa.Text()),
+            nullable=False, server_default=sa.text("'[]'::jsonb"),
+        ),
+        sa.Column("error", sa.Text(), nullable=True),
+    )
+    op.create_index(
+        "ix_library_audit_run_rule", "library_audit_run", ["rule"],
+    )
+    op.create_index(
+        "ix_library_audit_run_status", "library_audit_run", ["status"],
+    )
+
+
+def downgrade() -> None:
+    op.drop_index("ix_library_audit_run_status", table_name="library_audit_run")
+    op.drop_index("ix_library_audit_run_rule", table_name="library_audit_run")
+    op.drop_table("library_audit_run")

alembic/versions/0021_image_provenance_unique.py

@@ -0,0 +1,54 @@
+"""provenance-race: dedupe + UNIQUE(image_record_id, post_id) on image_provenance
+
+Revision ID: 0021
+Revises: 0020
+Create Date: 2026-05-26
+
+Closes the race in Importer._apply_sidecar's existence-check + INSERT pattern.
+Two workers writing for the same (image, post) pair both saw no existing row
+and both inserted, leaving duplicates that then broke .scalar_one_or_none()
+on every subsequent deep-scan rederive against those images
+(MultipleResultsFound). Most plausibly seeded when the 5-min recovery sweep
+re-enqueued a still-running long-import task and the second worker collided
+with the first inside _apply_sidecar.
+
+Migration steps:
+  1. DELETE all but min(id) per (image_record_id, post_id) pair. Operator's
+     DB had 2 affected pairs at write-time; harmless no-op if zero.
+  2. Add UNIQUE constraint so the importer's new savepoint+IntegrityError
+     recovery path can trip on collision and re-select, mirroring
+     uq_source_artist_platform_url and uq_post_source_external_id.
+"""
+from typing import Sequence, Union
+
+from alembic import op
+
+revision: str = "0021"
+down_revision: Union[str, None] = "0020"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.execute(
+        """
+        DELETE FROM image_provenance ip1
+        USING image_provenance ip2
+        WHERE ip1.image_record_id = ip2.image_record_id
+          AND ip1.post_id = ip2.post_id
+          AND ip1.id > ip2.id
+        """
+    )
+    op.create_unique_constraint(
+        "uq_image_provenance_image_post",
+        "image_provenance",
+        ["image_record_id", "post_id"],
+    )
+
+
+def downgrade() -> None:
+    op.drop_constraint(
+        "uq_image_provenance_image_post",
+        "image_provenance",
+        type_="unique",
+    )

alembic/versions/0022_source_per_artist_platform.py

@@ -0,0 +1,223 @@
+"""source-collapse: one Source per (artist, platform) — consolidate junk per-post Sources
+
+Revision ID: 0022
+Revises: 0021
+Create Date: 2026-05-26
+
+Closes the operator-flagged 2026-05-26 issue where the filesystem importer
+called _find_or_create_source(url=sd.post_url), creating one Source row per
+imported post URL. Operator's Atole artist had 406 Source rows where there
+should have been 1 (the /cw/Atole subscription Source).
+
+Source represents a subscription feed (one per artist+platform — the
+gallery-dl URL polled by the FC-3 downloader). Posts hang off it. The
+filesystem importer was misusing Source as a per-post key.
+
+Migration steps per (artist_id, platform) group with >1 Source:
+  1. Pick canonical — prefer a URL NOT matching '/posts/<id>$' (real
+     campaign URL like /cw/Atole); else min(id).
+  2. PRE-merge any Posts under non-canonical sources whose
+     external_post_id ALREADY exists under the canonical source. (Same
+     gallery-dl post imported via two different sidecar paths can plant
+     two Post rows with identical external_post_id under different
+     Sources for the same artist.) Repoint ImageProvenance +
+     ImageRecord.primary_post_id to the canonical-side Post, dedupe
+     ImageProvenance against alembic 0021's uq, then delete the
+     non-canonical-side Post. This MUST happen before step 3 — Postgres
+     fires uq_post_source_external_id row-by-row during the bulk UPDATE
+     and the merge-after-reparent ordering 500s on first collision
+     (operator-hit during v26.05.26.1 deploy, 2026-05-26).
+  3. Reparent remaining Posts onto canonical (no collisions possible now).
+  4. Reparent ImageProvenance.source_id off the non-canonical sources.
+  5. Delete the orphan Source rows.
+  6. If the canonical Source's URL still looks like a per-post URL (no
+     campaign URL existed among candidates), rewrite it to
+     'sidecar:<platform>:<artist_slug>' so the artist detail page shows
+     something readable.
+"""
+from typing import Sequence, Union
+
+from alembic import op
+from sqlalchemy import text
+
+revision: str = "0022"
+down_revision: Union[str, None] = "0021"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+_POST_URL_RE = r"/posts/[^/]+$"
+
+
+def upgrade() -> None:
+    conn = op.get_bind()
+
+    # Find (artist_id, platform) groups with > 1 Source row.
+    groups = conn.execute(text("""
+        SELECT artist_id, platform
+        FROM source
+        GROUP BY artist_id, platform
+        HAVING COUNT(*) > 1
+    """)).fetchall()
+
+    for artist_id, platform in groups:
+        rows = conn.execute(
+            text("""
+                SELECT id, url FROM source
+                WHERE artist_id = :a AND platform = :p
+                ORDER BY id ASC
+            """),
+            {"a": artist_id, "p": platform},
+        ).fetchall()
+
+        # Canonical: first row whose URL doesn't look like a per-post URL;
+        # else min(id).
+        canonical_id = None
+        for sid, url in rows:
+            if not _matches_post_url(url):
+                canonical_id = sid
+                break
+        if canonical_id is None:
+            canonical_id = rows[0][0]
+
+        other_ids = [sid for sid, _ in rows if sid != canonical_id]
+        if not other_ids:
+            continue
+
+        # STEP 2: PRE-merge ALL Posts with duplicate external_post_id
+        # across the entire (canonical + others) group, BEFORE the bulk
+        # reparent. Two cases must both be handled:
+        #   (A) canonical has Post X with epid=N; an "other" source has
+        #       Post Y with epid=N → after bulk UPDATE, (canonical, N)
+        #       collides with itself.
+        #   (B) two different "other" sources each have a Post with
+        #       epid=N; canonical has none → after bulk UPDATE, both
+        #       are repointed to (canonical, N) and the second collides.
+        # The earlier version of this migration only handled (A); the
+        # operator's deploy 2026-05-26 tripped (B) at line 139.
+        # Fix: group ALL Posts in the (artist, platform) by epid; for
+        # any group with count>1, pick the keep (prefer one already
+        # under canonical; else lowest id) and merge the rest into it.
+        all_posts = conn.execute(
+            text("""
+                SELECT external_post_id, id, source_id
+                FROM post
+                WHERE source_id = :canonical OR source_id = ANY(:others)
+                ORDER BY external_post_id, id
+            """),
+            {"canonical": canonical_id, "others": other_ids},
+        ).fetchall()
+        by_epid: dict = {}
+        for epid, post_id, src_id in all_posts:
+            by_epid.setdefault(epid, []).append((post_id, src_id))
+        for _epid, posts in by_epid.items():
+            if len(posts) <= 1:
+                continue
+            # Prefer a Post already under canonical as the keep.
+            canonical_posts = [p for p in posts if p[1] == canonical_id]
+            if canonical_posts:
+                keep_id = canonical_posts[0][0]
+            else:
+                keep_id = posts[0][0]  # already sorted by id ASC
+            drop_ids = [p[0] for p in posts if p[0] != keep_id]
+            for drop_id in drop_ids:
+                # Pre-delete image_provenance rows under drop_ whose
+                # image_record_id ALREADY has a provenance under keep —
+                # the UPDATE below would otherwise repoint them and
+                # trip uq_image_provenance_image_post (alembic 0021)
+                # row-by-row before any after-the-fact dedupe could
+                # run. Operator's v26.05.26.3 deploy 2026-05-26 tripped
+                # this at line 123.
+                conn.execute(
+                    text("""
+                        DELETE FROM image_provenance
+                        WHERE post_id = :drop_
+                          AND image_record_id IN (
+                              SELECT image_record_id FROM image_provenance
+                              WHERE post_id = :keep
+                          )
+                    """),
+                    {"keep": keep_id, "drop_": drop_id},
+                )
+                # Now safe to repoint the survivors.
+                conn.execute(
+                    text("""
+                        UPDATE image_provenance SET post_id = :keep
+                        WHERE post_id = :drop_
+                    """),
+                    {"keep": keep_id, "drop_": drop_id},
+                )
+                conn.execute(
+                    text("""
+                        UPDATE image_record SET primary_post_id = :keep
+                        WHERE primary_post_id = :drop_
+                    """),
+                    {"keep": keep_id, "drop_": drop_id},
+                )
+                conn.execute(
+                    text("DELETE FROM post WHERE id = :drop_"),
+                    {"drop_": drop_id},
+                )
+
+        # STEP 3: Bulk reparent the remaining Posts off the other
+        # Sources. After step 2, no collisions on
+        # (canonical, external_post_id) are possible.
+        conn.execute(
+            text("""
+                UPDATE post SET source_id = :canonical
+                WHERE source_id = ANY(:others)
+            """),
+            {"canonical": canonical_id, "others": other_ids},
+        )
+
+        # STEP 4: Reparent ImageProvenance.source_id (denormalized FK).
+        # No UNIQUE on source_id; safe bulk update.
+        conn.execute(
+            text("""
+                UPDATE image_provenance SET source_id = :canonical
+                WHERE source_id = ANY(:others)
+            """),
+            {"canonical": canonical_id, "others": other_ids},
+        )
+
+        # STEP 5: Drop the orphan Sources.
+        conn.execute(
+            text("DELETE FROM source WHERE id = ANY(:others)"),
+            {"others": other_ids},
+        )
+
+        # If the canonical's URL still looks per-post (no campaign URL
+        # existed among the candidates), rewrite to a synthetic anchor so
+        # the artist detail page renders something readable.
+        canonical_url = conn.execute(
+            text("SELECT url FROM source WHERE id = :id"),
+            {"id": canonical_id},
+        ).scalar_one()
+        if _matches_post_url(canonical_url):
+            slug = conn.execute(
+                text("SELECT slug FROM artist WHERE id = :id"),
+                {"id": artist_id},
+            ).scalar_one()
+            conn.execute(
+                text("""
+                    UPDATE source
+                    SET url = :new_url, enabled = false
+                    WHERE id = :id
+                """),
+                {
+                    "id": canonical_id,
+                    "new_url": f"sidecar:{platform}:{slug}",
+                },
+            )
+
+
+def downgrade() -> None:
+    # Lossy migration — orphan Sources deleted, Posts reparented, Posts
+    # merged. No safe downgrade. If you need to roll back the schema
+    # invariant, fork from 0021 and re-run filesystem imports.
+    pass
+
+
+def _matches_post_url(url: str) -> bool:
+    """True if url ends with /posts/<token> (gallery-dl-style per-post URL)."""
+    import re
+    return bool(re.search(_POST_URL_RE, url or ""))

alembic/versions/0023_drop_meta_rating_tag_kinds.py

@@ -0,0 +1,99 @@
+"""drop meta + rating tag kinds — operator-retired 2026-05-26
+
+Revision ID: 0023
+Revises: 0022
+Create Date: 2026-05-26
+
+Operator decided meta + rating aren't valid tag kinds for FC. Per-row
+behavior: DELETE existing rows (operator chose "clean break" over
+"convert to general"). All cascading FKs (image_tag, tag_alias,
+tag_allowlist, tag_reference_embedding, tag_suggestion_rejection,
+series_page) use ondelete="CASCADE" so a single DELETE on tag cleans
+the related rows in one go.
+
+After the data cleanup, recreate the tag_kind ENUM without 'meta' /
+'rating' (Postgres has no `ALTER TYPE ... DROP VALUE`; standard
+rename-create-cast-drop dance). The server default 'general' is
+dropped before the type swap and restored after.
+"""
+from typing import Sequence, Union
+
+from alembic import op
+
+revision: str = "0023"
+down_revision: Union[str, None] = "0022"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # 1. Delete tags of the retired kinds. CASCADE handles related tables.
+    op.execute("DELETE FROM tag WHERE kind IN ('meta', 'rating')")
+
+    # 2. Drop the CHECK constraint that references the enum's literal
+    #    values. Postgres can't resolve `kind = 'character'` across the
+    #    type swap below — the literal would bind to the new tag_kind
+    #    but the column is on tag_kind_old, producing
+    #    "operator does not exist: tag_kind = tag_kind_old".
+    #    (Operator-hit during the v26.05.26.5 deploy attempt; ck was
+    #    originally added by alembic 0002.) Recreated post-swap.
+    op.drop_constraint(
+        "ck_tag_fandom_requires_character", "tag", type_="check"
+    )
+
+    # 3. Drop the server default — ALTER COLUMN TYPE can't carry it
+    #    across the type swap below.
+    op.execute("ALTER TABLE tag ALTER COLUMN kind DROP DEFAULT")
+
+    # 4. Recreate the tag_kind enum without meta/rating.
+    op.execute("ALTER TYPE tag_kind RENAME TO tag_kind_old")
+    op.execute(
+        "CREATE TYPE tag_kind AS ENUM ("
+        "'artist', 'character', 'fandom', 'general', "
+        "'series', 'archive', 'post'"
+        ")"
+    )
+    op.execute(
+        "ALTER TABLE tag "
+        "ALTER COLUMN kind TYPE tag_kind "
+        "USING kind::text::tag_kind"
+    )
+    op.execute("DROP TYPE tag_kind_old")
+
+    # 5. Restore the server default.
+    op.execute("ALTER TABLE tag ALTER COLUMN kind SET DEFAULT 'general'")
+
+    # 6. Restore the CHECK constraint (now bound to the new tag_kind).
+    op.create_check_constraint(
+        "ck_tag_fandom_requires_character",
+        "tag",
+        "(fandom_id IS NULL) OR (kind = 'character')",
+    )
+
+
+def downgrade() -> None:
+    # Add the values back to the enum so old code can boot. The deleted
+    # tag rows are gone permanently — no safe restore.
+    op.drop_constraint(
+        "ck_tag_fandom_requires_character", "tag", type_="check"
+    )
+    op.execute("ALTER TABLE tag ALTER COLUMN kind DROP DEFAULT")
+    op.execute("ALTER TYPE tag_kind RENAME TO tag_kind_old")
+    op.execute(
+        "CREATE TYPE tag_kind AS ENUM ("
+        "'artist', 'character', 'fandom', 'general', "
+        "'series', 'archive', 'post', 'meta', 'rating'"
+        ")"
+    )
+    op.execute(
+        "ALTER TABLE tag "
+        "ALTER COLUMN kind TYPE tag_kind "
+        "USING kind::text::tag_kind"
+    )
+    op.execute("DROP TYPE tag_kind_old")
+    op.execute("ALTER TABLE tag ALTER COLUMN kind SET DEFAULT 'general'")
+    op.create_check_constraint(
+        "ck_tag_fandom_requires_character",
+        "tag",
+        "(fandom_id IS NULL) OR (kind = 'character')",
+    )

alembic/versions/0024_backfill_post_title_from_description.py

@@ -0,0 +1,80 @@
+"""backfill post.post_title from description first-line — 2026-05-27
+
+Revision ID: 0024
+Revises: 0023
+Create Date: 2026-05-27
+
+SubscribeStar gallery-dl always writes `title: ""` and embeds the leading
+sentence inside `content` HTML. FC's sidecar parser was leaving
+post_title NULL for every SubscribeStar post since FC-3 shipped. The
+parser fix (sidecar._first_line_text fallback) now synthesizes a title
+at parse time; this migration applies the same logic retroactively to
+existing rows.
+
+Operator-flagged 2026-05-27 after inspecting
+/mnt/Data/Patreon/Cheunart/subscribestar/ sidecars.
+
+Idempotent: only touches rows where post_title IS NULL or empty AND
+description IS NOT NULL. Re-running the migration is a no-op.
+"""
+from __future__ import annotations
+
+import re
+from typing import Sequence, Union
+
+from alembic import op
+from sqlalchemy import text
+
+revision: str = "0024"
+down_revision: Union[str, None] = "0023"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+_TAG_RE = re.compile(r"<[^>]+>")
+_WS_RE = re.compile(r"\s+")
+
+
+def _first_line_text(body: str, limit: int = 120) -> str | None:
+    """Mirror of sidecar._first_line_text. Kept inline so the migration
+    doesn't carry a runtime import dependency from app code that may
+    have moved by the time the migration is replayed years from now."""
+    if not body:
+        return None
+    text_ = _TAG_RE.sub(" ", body)
+    text_ = text_.replace("\xa0", " ")
+    for line in text_.splitlines():
+        line = _WS_RE.sub(" ", line).strip()
+        if line:
+            if len(line) > limit:
+                return line[: limit - 1].rstrip() + "…"
+            return line
+    return None
+
+
+def upgrade() -> None:
+    bind = op.get_bind()
+    rows = bind.execute(
+        text(
+            "SELECT id, description FROM post "
+            "WHERE (post_title IS NULL OR post_title = '') "
+            "AND description IS NOT NULL AND description <> ''"
+        )
+    ).fetchall()
+    updated = 0
+    for row in rows:
+        derived = _first_line_text(row.description)
+        if not derived:
+            continue
+        bind.execute(
+            text("UPDATE post SET post_title = :t WHERE id = :id"),
+            {"t": derived, "id": row.id},
+        )
+        updated += 1
+    print(f"0024: backfilled post_title on {updated} row(s)")
+
+
+def downgrade() -> None:
+    # No safe restore — we can't tell which post_titles were derived vs
+    # genuinely present. Leave the column alone on rollback.
+    pass

alembic/versions/0025_fix_subscribestar_post_ids.py

@@ -0,0 +1,288 @@
+"""sidecar-audit followup: correct external_post_id + post_url across all platforms
+
+Revision ID: 0025
+Revises: 0024
+Create Date: 2026-05-27
+
+Closes the operator-flagged 2026-05-27 sidecar audit findings. Three
+data-correctness bugs across non-Patreon platforms had been silently
+corrupting Posts since FC-3 shipped; the parser fix (sidecar.py, same
+commit) addresses new imports. This migration cleans up existing rows.
+
+Per-platform actions:
+
+  subscribestar — gallery-dl wrote the per-attachment id in `id` and
+    the actual post id in `post_id`. FC's parser picked `id`, so every
+    multi-image SubscribeStar post was fragmented into N Post rows.
+    1. For each SubscribeStar Post, read its sidecar (via the related
+       ImageRecord's on-disk path), pull `post_id`, overwrite
+       external_post_id and post_url.
+    2. Merge groups of Posts under one source that now share an
+       external_post_id (fragments of the same actual post). Same
+       ImageProvenance pre-delete + repoint dance as alembic 0022.
+
+  hentaifoundry — sidecars have NO `url` field; `src` is the image
+    URL. FC's parser stored post_url=NULL. Read each HF Post's sidecar
+    for `user` + `index`, derive the canonical /pictures/user/<u>/<i>
+    permalink. external_post_id (= `index`) was already correct.
+
+  discord — gallery-dl wrote the CDN attachment URL in `url`. FC's
+    parser stored that as post_url. Read each Discord Post's sidecar
+    for the server/channel/message triple, derive the proper
+    discord.com/channels/.../<message> permalink. external_post_id (=
+    `message_id`) was already correct.
+
+  pixiv — pure-SQL backfill: replace any `i.pximg.net`-style URL on
+    Post.post_url with the derived `/artworks/<id>` permalink. Pixiv
+    external_post_id (= `id`) was already correct; no sidecar IO
+    needed.
+
+Idempotent: re-running on already-corrected data is a no-op (skips
+rows whose derived value matches what's already stored).
+
+Posts whose related ImageRecord paths don't resolve on disk (orphaned
+filesystem state) are skipped with a count in the migration output —
+those will be picked up by a future deep-scan.
+"""
+from __future__ import annotations
+
+import json
+import re
+from pathlib import Path
+from typing import Sequence, Union
+
+from alembic import op
+from sqlalchemy import text
+
+revision: str = "0025"
+down_revision: Union[str, None] = "0024"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+# Mirror of sidecar._NUMBERING_PREFIX. Kept inline so the migration is
+# self-contained (the operator's banked rule:
+# reference_postgres_enum_swap_drop_checks.md says migrations shouldn't
+# import from runtime app code).
+_NUMBERING_PREFIX = re.compile(r"^\d+_(.+)$")
+
+
+def _find_sidecar(media_path: Path) -> Path | None:
+    """gallery-dl writes the sidecar under the unprefixed stem
+    (`HOLLOW-ICHIGO.json`) while the media file gets a NN_ ordering
+    prefix (`01_HOLLOW-ICHIGO.png`). Try in order:
+      1. <stem>.json next to the media
+      2. <media>.json next to the media (full-name variant)
+      3. strip the NN_ prefix from the stem, then <stripped>.json
+    """
+    if not media_path:
+        return None
+    cand = media_path.with_suffix(".json")
+    if cand.is_file():
+        return cand
+    cand = media_path.parent / f"{media_path.name}.json"
+    if cand.is_file():
+        return cand
+    m = _NUMBERING_PREFIX.match(media_path.stem)
+    if m:
+        cand = media_path.parent / f"{m.group(1)}.json"
+        if cand.is_file():
+            return cand
+    return None
+
+
+def _str_id(v) -> str | None:
+    """str() a JSON scalar id; reject bool (JSON booleans are ints in
+    Python's eyes but they aren't valid sidecar ids)."""
+    if isinstance(v, bool):
+        return None
+    if isinstance(v, (str, int)) and str(v).strip():
+        return str(v).strip()
+    return None
+
+
+def _str_field(v) -> str | None:
+    if isinstance(v, str) and v.strip():
+        return v.strip()
+    return None
+
+
+def upgrade() -> None:
+    conn = op.get_bind()
+
+    # ── PART 1: Per-platform corrections requiring filesystem IO ─────
+    # SubscribeStar, HentaiFoundry, Discord all need fields from the
+    # sidecar to construct the right post_url. We walk each Post's
+    # related ImageRecord.path to find the sidecar, read it, derive,
+    # and update.
+    targets = conn.execute(text("""
+        SELECT p.id, p.external_post_id, p.post_url, s.platform
+        FROM post p
+        JOIN source s ON s.id = p.source_id
+        WHERE s.platform IN ('subscribestar', 'hentaifoundry', 'discord')
+    """)).fetchall()
+
+    stats: dict[str, dict[str, int]] = {
+        plat: {"read": 0, "updated": 0, "no_sidecar": 0}
+        for plat in ("subscribestar", "hentaifoundry", "discord")
+    }
+    for post_row in targets:
+        plat = post_row.platform
+        path = _first_attachment_path(conn, post_row.id)
+        if not path:
+            stats[plat]["no_sidecar"] += 1
+            continue
+        sidecar = _find_sidecar(Path(path))
+        if sidecar is None:
+            stats[plat]["no_sidecar"] += 1
+            continue
+        try:
+            data = json.loads(sidecar.read_text(encoding="utf-8"))
+        except (OSError, json.JSONDecodeError):
+            stats[plat]["no_sidecar"] += 1
+            continue
+        stats[plat]["read"] += 1
+
+        new_epid = post_row.external_post_id
+        new_url = None
+        if plat == "subscribestar":
+            pid = _str_id(data.get("post_id"))
+            if pid:
+                new_epid = pid
+                new_url = f"https://www.subscribestar.com/posts/{pid}"
+        elif plat == "hentaifoundry":
+            user = _str_field(data.get("user")) or _str_field(data.get("artist"))
+            idx = _str_id(data.get("index"))
+            if user and idx:
+                new_url = f"https://www.hentai-foundry.com/pictures/user/{user}/{idx}"
+        elif plat == "discord":
+            sid = _str_id(data.get("server_id"))
+            cid = _str_id(data.get("channel_id"))
+            mid = _str_id(data.get("message_id"))
+            if sid and cid and mid:
+                new_url = f"https://discord.com/channels/{sid}/{cid}/{mid}"
+
+        # Idempotent: skip if nothing changed.
+        if new_epid == post_row.external_post_id and new_url == post_row.post_url:
+            continue
+        conn.execute(
+            text("""
+                UPDATE post
+                SET external_post_id = :epid, post_url = :url
+                WHERE id = :id
+            """),
+            {"epid": new_epid, "url": new_url, "id": post_row.id},
+        )
+        stats[plat]["updated"] += 1
+
+    for plat, s in stats.items():
+        print(
+            f"0025: {plat} — read {s['read']} sidecars, "
+            f"updated {s['updated']} Posts, "
+            f"{s['no_sidecar']} Posts had no resolvable sidecar"
+        )
+
+    # ── PART 2: Merge SubscribeStar fragments now sharing epid ───────
+    # After Part 1, each group of Posts under one source with the SAME
+    # new external_post_id is a fragment-set of the same actual post.
+    # Merge to one canonical row. Pre-handle the same ImageProvenance
+    # collision pattern as alembic 0022 (uq_image_provenance_image_post).
+    fragment_groups = conn.execute(text("""
+        SELECT p.source_id, p.external_post_id,
+               ARRAY_AGG(p.id ORDER BY p.id ASC) AS post_ids
+        FROM post p
+        JOIN source s ON s.id = p.source_id
+        WHERE s.platform = 'subscribestar'
+          AND p.external_post_id IS NOT NULL
+        GROUP BY p.source_id, p.external_post_id
+        HAVING COUNT(*) > 1
+    """)).fetchall()
+
+    merged = 0
+    for grp in fragment_groups:
+        post_ids = list(grp.post_ids)
+        keep_id, *drop_ids = post_ids
+        for drop_id in drop_ids:
+            # Pre-DELETE colliding ImageProvenance under drop_ that
+            # already exist under keep (alembic 0022 banked the pattern).
+            conn.execute(
+                text("""
+                    DELETE FROM image_provenance
+                    WHERE post_id = :drop_
+                      AND image_record_id IN (
+                          SELECT image_record_id FROM image_provenance
+                          WHERE post_id = :keep
+                      )
+                """),
+                {"keep": keep_id, "drop_": drop_id},
+            )
+            conn.execute(
+                text("""
+                    UPDATE image_provenance SET post_id = :keep
+                    WHERE post_id = :drop_
+                """),
+                {"keep": keep_id, "drop_": drop_id},
+            )
+            conn.execute(
+                text("""
+                    UPDATE image_record SET primary_post_id = :keep
+                    WHERE primary_post_id = :drop_
+                """),
+                {"keep": keep_id, "drop_": drop_id},
+            )
+            conn.execute(
+                text("""
+                    UPDATE post_attachment SET post_id = :keep
+                    WHERE post_id = :drop_
+                """),
+                {"keep": keep_id, "drop_": drop_id},
+            )
+            conn.execute(
+                text("DELETE FROM post WHERE id = :drop_"),
+                {"drop_": drop_id},
+            )
+            merged += 1
+    print(f"0025: subscribestar — merged {merged} duplicate Post fragments")
+
+    # ── PART 3: Pixiv post_url backfill (pure SQL) ───────────────────
+    # Pixiv's external_post_id is already correct (gallery-dl's `id` is
+    # the post id). Only post_url needs derivation: replace anything
+    # under i.pximg.net (the file URL) with the /artworks/<id> permalink.
+    pixiv_updated = conn.execute(text("""
+        UPDATE post p
+        SET post_url = 'https://www.pixiv.net/artworks/' || p.external_post_id
+        FROM source s
+        WHERE p.source_id = s.id
+          AND s.platform = 'pixiv'
+          AND p.external_post_id IS NOT NULL
+          AND (p.post_url IS NULL
+               OR p.post_url LIKE 'https://i.pximg.net/%'
+               OR p.post_url LIKE 'http://i.pximg.net/%')
+    """)).rowcount
+    print(f"0025: pixiv — backfilled post_url on {pixiv_updated} Posts")
+
+
+def _first_attachment_path(conn, post_id: int) -> str | None:
+    """Return any ImageRecord.path attached to this post (via
+    ImageProvenance). Lowest-id row keeps the migration deterministic
+    so re-running on the same DB picks the same sidecar."""
+    row = conn.execute(
+        text("""
+            SELECT ir.path
+            FROM image_provenance ip
+            JOIN image_record ir ON ir.id = ip.image_record_id
+            WHERE ip.post_id = :pid
+            ORDER BY ip.id ASC
+            LIMIT 1
+        """),
+        {"pid": post_id},
+    ).first()
+    return row[0] if row else None
+
+
+def downgrade() -> None:
+    # Lossy: external_post_id values were overwritten with the correct
+    # post_id; original per-attachment ids weren't preserved. Post-merge
+    # also deleted drop rows. No safe restore. To roll back the schema
+    # invariant, fork from 0024 and re-run sidecar imports.
+    pass

alembic/versions/0026_import_task_recovery_count_refetched.py

@@ -0,0 +1,53 @@
+"""import_task.recovery_count + refetched — poison-pill circuit breaker
+
+Revision ID: 0026
+Revises: 0025
+Create Date: 2026-05-28
+
+Backs the import-task resilience work (operator-flagged 2026-05-28):
+
+- recovery_count: how many times recover_interrupted_tasks has
+  re-queued this row from a stuck 'processing' state. A row that
+  hard-crashes the worker (OOM / segfault on a corrupt or oversized
+  input) leaves no terminal flip, so the sweep re-queues it — and
+  without a cap it would loop forever, re-crashing the worker each
+  time. After MAX_RECOVERY_ATTEMPTS the sweep marks it 'failed' with a
+  diagnostic instead.
+
+- refetched: whether a one-shot re-download has already been attempted
+  for this task's file. Bounds the Layer-2 re-fetch remediation to a
+  single attempt so source-side corruption doesn't loop.
+
+Both default to 0 / false; additive, no backfill needed.
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0026"
+down_revision: Union[str, None] = "0025"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "import_task",
+        sa.Column(
+            "recovery_count", sa.Integer(), nullable=False,
+            server_default="0",
+        ),
+    )
+    op.add_column(
+        "import_task",
+        sa.Column(
+            "refetched", sa.Boolean(), nullable=False,
+            server_default=sa.false(),
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("import_task", "refetched")
+    op.drop_column("import_task", "recovery_count")

alembic/versions/0027_drop_migration_run.py

@@ -0,0 +1,50 @@
+"""drop migration_run — one-and-done GS/IR migration tooling removed
+
+Revision ID: 0027
+Revises: 0026
+Create Date: 2026-05-29
+
+The GS/IR migration tooling (services/migrators, /api/migrate, the
+run_migration task, LegacyMigrationCard, and the MigrationRun model) was
+removed after the migration cutover completed. This drops its now-orphaned
+run-log table. Downgrade recreates the table (mirrors the old model) so the
+migration is reversible.
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+from sqlalchemy.dialects.postgresql import JSONB
+
+revision: str = "0027"
+down_revision: Union[str, None] = "0026"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.drop_table("migration_run")
+
+
+def downgrade() -> None:
+    op.create_table(
+        "migration_run",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column("kind", sa.String(length=32), nullable=False),
+        sa.Column("status", sa.String(length=32), nullable=False),
+        sa.Column("dry_run", sa.Boolean(), nullable=False, server_default=sa.false()),
+        sa.Column(
+            "started_at", sa.DateTime(timezone=True), nullable=False,
+            server_default=sa.func.now(),
+        ),
+        sa.Column("finished_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column(
+            "counts", JSONB(), nullable=False, server_default=sa.text("'{}'::jsonb"),
+        ),
+        sa.Column("error", sa.Text(), nullable=True),
+        sa.Column(
+            "metadata", JSONB(), nullable=False, server_default=sa.text("'{}'::jsonb"),
+        ),
+    )
+    op.create_index("ix_migration_run_kind", "migration_run", ["kind"])
+    op.create_index("ix_migration_run_status", "migration_run", ["status"])

alembic/versions/0028_collapse_sidecar_synthetics_into_real_sources.py

@@ -0,0 +1,190 @@
+"""collapse-sidecar-synthetic: repoint Posts/ImageProvenance/DownloadEvents
+from `sidecar:<platform>:<slug>` synthetic Source anchors onto the real
+Source for the same (artist, platform) when one exists, then delete the
+synthetic.
+
+Revision ID: 0028
+Revises: 0027
+Create Date: 2026-05-31
+
+Background: alembic 0022 (2026-05-26) consolidated the old per-post-URL
+Source rows into one canonical Source per (artist, platform). When NO
+real campaign URL was salvageable among the candidates, it rewrote the
+canonical row to url='sidecar:<platform>:<slug>' enabled=false as a
+disabled anchor for any Posts already attached.
+
+That was fine while it was the only Source for that artist+platform.
+But: the unique constraint on Source is (artist_id, platform, url), not
+(artist_id, platform). When the operator later added the real
+subscription via the UI / extension / etc., a SECOND row landed —
+the real one — with id > the synthetic. Both coexisted.
+
+Two follow-on problems surfaced 2026-05-31:
+
+  1. The Subscriptions UI listed both rows. The synthetic was disabled
+     so the scheduler never polled it, but it looked like a phantom
+     subscription. (Fixed in same commit by SourceService.list filter.)
+  2. importer._source_for_sidecar picked Source by `ORDER BY id ASC
+     LIMIT 1`, so EVERY gallery-dl download since the real Source was
+     added attached its Post to the SYNTHETIC anchor, not the real
+     Source. (Fixed in same commit by preferring non-sidecar URLs.)
+
+This migration is the data half of the cleanup: for every (artist,
+platform) with both a synthetic AND a real Source, repoint the
+synthetic's children (Posts, ImageProvenance, DownloadEvents) onto the
+real Source and delete the synthetic. Reuses the same epid/provenance
+collision dance from alembic 0022 because the same uniqueness
+constraints fire row-by-row during bulk UPDATEs.
+
+Lone synthetic anchors — those where no real Source for the same
+(artist, platform) exists (e.g., filesystem-imported artist with no
+subscription added) — are LEFT INTACT. They anchor real imported
+content; deleting them would CASCADE-delete the Posts the operator
+imported. The SourceService.list filter hides them from the UI; the
+operator can delete them by hand if they want the underlying imports
+gone.
+"""
+from typing import Sequence, Union
+
+from alembic import op
+from sqlalchemy import text
+
+revision: str = "0028"
+down_revision: Union[str, None] = "0027"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    conn = op.get_bind()
+
+    # Find (artist_id, platform) groups where BOTH a sidecar synthetic
+    # and at least one real Source exist.
+    groups = conn.execute(text("""
+        SELECT artist_id, platform
+        FROM source
+        GROUP BY artist_id, platform
+        HAVING bool_or(url LIKE 'sidecar:%')
+           AND bool_or(url NOT LIKE 'sidecar:%')
+    """)).fetchall()
+
+    for artist_id, platform in groups:
+        rows = conn.execute(
+            text("""
+                SELECT id, url FROM source
+                WHERE artist_id = :a AND platform = :p
+                ORDER BY id ASC
+            """),
+            {"a": artist_id, "p": platform},
+        ).fetchall()
+
+        synthetic_ids = [sid for sid, url in rows if url.startswith("sidecar:")]
+        real_rows = [(sid, url) for sid, url in rows if not url.startswith("sidecar:")]
+        if not synthetic_ids or not real_rows:
+            continue  # belt+suspenders; the GROUP BY already filtered
+
+        # Canonical real: lowest-id non-sidecar Source.
+        canonical_id = real_rows[0][0]
+
+        # STEP A: PRE-merge Post collisions on (canonical, external_post_id).
+        # Mirror alembic 0022's pre-merge logic — when synth has Post X
+        # epid=N and real has Post Y epid=N, the bulk UPDATE below would
+        # trip uq_post_source_external_id row-by-row. Group all Posts
+        # under (canonical + synthetics) by epid; for any group >1,
+        # pick a keep (prefer one already under canonical, else lowest
+        # id) and merge the rest into it.
+        all_posts = conn.execute(
+            text("""
+                SELECT external_post_id, id, source_id
+                FROM post
+                WHERE source_id = :canonical OR source_id = ANY(:synths)
+                ORDER BY external_post_id, id
+            """),
+            {"canonical": canonical_id, "synths": synthetic_ids},
+        ).fetchall()
+        by_epid: dict = {}
+        for epid, post_id, src_id in all_posts:
+            by_epid.setdefault(epid, []).append((post_id, src_id))
+        for _epid, posts in by_epid.items():
+            if len(posts) <= 1:
+                continue
+            canonical_side = [p for p in posts if p[1] == canonical_id]
+            keep_id = canonical_side[0][0] if canonical_side else posts[0][0]
+            drop_ids = [p[0] for p in posts if p[0] != keep_id]
+            for drop_id in drop_ids:
+                # Pre-delete image_provenance rows under drop_ whose
+                # image_record_id already has provenance under keep —
+                # avoids tripping uq_image_provenance_image_post (0021)
+                # row-by-row during the repoint UPDATE.
+                conn.execute(
+                    text("""
+                        DELETE FROM image_provenance
+                        WHERE post_id = :drop_
+                          AND image_record_id IN (
+                              SELECT image_record_id FROM image_provenance
+                              WHERE post_id = :keep
+                          )
+                    """),
+                    {"keep": keep_id, "drop_": drop_id},
+                )
+                conn.execute(
+                    text("""
+                        UPDATE image_provenance SET post_id = :keep
+                        WHERE post_id = :drop_
+                    """),
+                    {"keep": keep_id, "drop_": drop_id},
+                )
+                conn.execute(
+                    text("""
+                        UPDATE image_record SET primary_post_id = :keep
+                        WHERE primary_post_id = :drop_
+                    """),
+                    {"keep": keep_id, "drop_": drop_id},
+                )
+                conn.execute(
+                    text("DELETE FROM post WHERE id = :drop_"),
+                    {"drop_": drop_id},
+                )
+
+        # STEP B: Bulk reparent the remaining Posts off the synthetics.
+        conn.execute(
+            text("""
+                UPDATE post SET source_id = :canonical
+                WHERE source_id = ANY(:synths)
+            """),
+            {"canonical": canonical_id, "synths": synthetic_ids},
+        )
+
+        # STEP C: Reparent ImageProvenance.source_id (denormalized FK;
+        # no UNIQUE on source_id, safe bulk).
+        conn.execute(
+            text("""
+                UPDATE image_provenance SET source_id = :canonical
+                WHERE source_id = ANY(:synths)
+            """),
+            {"canonical": canonical_id, "synths": synthetic_ids},
+        )
+
+        # STEP D: Reparent any DownloadEvent.source_id. Synthetics are
+        # enabled=false so the scheduler never created events for them;
+        # this is belt+suspenders for any rows planted by manual force
+        # or older code paths.
+        conn.execute(
+            text("""
+                UPDATE download_event SET source_id = :canonical
+                WHERE source_id = ANY(:synths)
+            """),
+            {"canonical": canonical_id, "synths": synthetic_ids},
+        )
+
+        # STEP E: Drop the now-empty synthetics.
+        conn.execute(
+            text("DELETE FROM source WHERE id = ANY(:synths)"),
+            {"synths": synthetic_ids},
+        )
+
+
+def downgrade() -> None:
+    # Lossy migration — synthetic Sources deleted, Posts repointed and
+    # potentially merged. No safe downgrade.
+    pass

alembic/versions/0029_drop_artist_copyright_ml_thresholds.py

@@ -0,0 +1,71 @@
+"""drop artist + copyright ml thresholds; lower general default to 0.50
+
+Revision ID: 0029
+Revises: 0028
+Create Date: 2026-06-01
+
+Operator-flagged 2026-06-01: the view modal's Suggestions panel hides
+most general-category predictions because the default threshold is
+0.95. Lowering the default to 0.50 (matches character) so general
+suggestions surface more aggressively; the value remains tunable in
+Settings → ML.
+
+Same change retires two ML suggestion categories whose Tag.kind
+surfaces are unused:
+
+- `artist`: retired in FC-2d-vii-c — artist identity is acquisition-
+  derived (image_record.artist_id), never ML-inferred. The threshold
+  column was a leftover from before that retirement.
+- `copyright`: retired 2026-06-01 — the app uses `fandom` for the
+  franchise/copyright concept (per TagsView.vue's doc comment); no
+  Tag rows of kind=copyright exist, and the threshold column never
+  fed anything user-visible.
+
+Both columns are dropped from ml_settings; the existing row's
+suggestion_threshold_general value is bumped from 0.95 to 0.50 iff
+it's still at the old default, so deployed installs pick up the new
+UX without overriding any operator tuning.
+"""
+from typing import Sequence, Union
+
+from alembic import op
+from sqlalchemy import text
+
+revision: str = "0029"
+down_revision: Union[str, None] = "0028"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # Bump the general threshold for installs still at the old default.
+    op.execute(text(
+        "UPDATE ml_settings "
+        "SET suggestion_threshold_general = 0.50 "
+        "WHERE id = 1 AND suggestion_threshold_general = 0.95"
+    ))
+    op.drop_column("ml_settings", "suggestion_threshold_artist")
+    op.drop_column("ml_settings", "suggestion_threshold_copyright")
+
+
+def downgrade() -> None:
+    # Restore the columns with their prior defaults. The bump from
+    # 0.95 → 0.50 isn't reversible without remembering whether the
+    # operator had explicitly set 0.95 (unlikely — that was just the
+    # default) so we leave the current general value as-is.
+    from sqlalchemy import Column, Float
+
+    op.add_column(
+        "ml_settings",
+        Column(
+            "suggestion_threshold_artist",
+            Float, nullable=False, server_default="0.30",
+        ),
+    )
+    op.add_column(
+        "ml_settings",
+        Column(
+            "suggestion_threshold_copyright",
+            Float, nullable=False, server_default="0.50",
+        ),
+    )

alembic/versions/0030_nullable_post_source_id_denorm_artist_id.py

@@ -0,0 +1,145 @@
+"""nullable post.source_id + denormalized post.artist_id; retire sidecar synthetics
+
+Revision ID: 0030
+Revises: 0029
+Create Date: 2026-06-01
+
+Operator-asked 2026-06-01 after the Dymkens orphan investigation: the
+sidecar synthetic Source pattern (`sidecar:<platform>:<slug>` rows
+with enabled=false) was technically correct but misled the operator
+into thinking they had phantom subscriptions. The synthetics existed
+solely to satisfy `Post.source_id NOT NULL` for filesystem-imported
+content with no real subscription.
+
+This migration makes the data model honest:
+
+1. **Post gets a denormalized `artist_id` column** so artist filters
+   work without traversing `Post → Source.artist_id`. Backfilled from
+   the existing Source linkage, then NOT NULL'd.
+2. **`Post.source_id` becomes nullable**, FK ondelete `CASCADE` → `SET
+   NULL`. Deleting a Source detaches its Posts instead of destroying
+   imported content (semantically: subscription ends, archive stays).
+3. **`ImageProvenance.source_id` becomes nullable** with the same FK
+   semantic change.
+4. **Sidecar synthetic Sources are deleted** — first NULL out the
+   FKs from Post + ImageProvenance pointing at them (so the implicit
+   CASCADE doesn't fire), then delete. DownloadEvent FK is unchanged
+   (still CASCADE'd, NOT NULL'd) — synthetics have `enabled=false`
+   so no events exist for them.
+
+Uniqueness handling: the existing `uq_post_source_external_id`
+(source_id, external_post_id) keeps working for source-bound Posts
+(Postgres treats NULL != NULL so NULL-source rows aren't deduped by
+it). A second partial unique index covers the NULL-source case on
+(artist_id, external_post_id) so filesystem-imported posts still
+dedupe within an artist.
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+from sqlalchemy import text
+
+revision: str = "0030"
+down_revision: Union[str, None] = "0029"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    conn = op.get_bind()
+
+    # Step 1: add Post.artist_id, initially nullable for backfill.
+    # FK naming follows the Base.metadata naming_convention
+    # (fk_<table>_<column>_<referred_table>) — alembic 0001 set this up.
+    op.add_column(
+        "post",
+        sa.Column("artist_id", sa.Integer, nullable=True),
+    )
+    op.create_foreign_key(
+        "fk_post_artist_id_artist", "post", "artist",
+        ["artist_id"], ["id"], ondelete="CASCADE",
+    )
+
+    # Step 2: backfill from Source.artist_id (every existing Post has a
+    # Source today, so every row gets populated).
+    conn.execute(text("""
+        UPDATE post p
+        SET artist_id = s.artist_id
+        FROM source s
+        WHERE p.source_id = s.id AND p.artist_id IS NULL
+    """))
+
+    # Sanity: count any remaining NULLs. Should be zero pre-this-migration.
+    remaining = conn.execute(text(
+        "SELECT COUNT(*) FROM post WHERE artist_id IS NULL"
+    )).scalar_one()
+    if remaining:
+        raise RuntimeError(
+            f"alembic 0030: {remaining} post rows have no resolvable "
+            f"artist_id after backfill. Investigate before continuing."
+        )
+
+    # Step 3: enforce NOT NULL + add index for artist-filter queries.
+    op.alter_column("post", "artist_id", nullable=False)
+    op.create_index("ix_post_artist_id", "post", ["artist_id"])
+
+    # Step 4: relax post.source_id + flip FK to SET NULL. The original FK
+    # name from alembic 0001 is `fk_post_source_id_source` per the
+    # NAMING_CONVENTION in models/base.py.
+    op.alter_column("post", "source_id", nullable=True)
+    op.drop_constraint("fk_post_source_id_source", "post", type_="foreignkey")
+    op.create_foreign_key(
+        "fk_post_source_id_source", "post", "source",
+        ["source_id"], ["id"], ondelete="SET NULL",
+    )
+
+    # Step 5: relax image_provenance.source_id + flip FK to SET NULL.
+    op.alter_column("image_provenance", "source_id", nullable=True)
+    op.drop_constraint(
+        "fk_image_provenance_source_id_source", "image_provenance",
+        type_="foreignkey",
+    )
+    op.create_foreign_key(
+        "fk_image_provenance_source_id_source", "image_provenance", "source",
+        ["source_id"], ["id"], ondelete="SET NULL",
+    )
+
+    # Step 6: partial unique index on (artist_id, external_post_id) for
+    # NULL-source Posts. The existing uq_post_source_external_id keeps
+    # guarding source-bound rows; NULL-source rows now dedupe within
+    # an artist.
+    op.execute(
+        "CREATE UNIQUE INDEX uq_post_artist_external_id_null_source "
+        "ON post (artist_id, external_post_id) "
+        "WHERE source_id IS NULL"
+    )
+
+    # Step 7: retire sidecar synthetic Sources. NULL out the references
+    # FIRST (the new FK is SET NULL so CASCADE wouldn't fire anyway, but
+    # being explicit makes the intent clear). Then delete the synthetic
+    # source rows. Any DownloadEvent rows under synthetics CASCADE-die
+    # with the source — synthetics have enabled=false so there shouldn't
+    # be any in practice.
+    conn.execute(text("""
+        UPDATE post
+        SET source_id = NULL
+        WHERE source_id IN (SELECT id FROM source WHERE url LIKE 'sidecar:%')
+    """))
+    conn.execute(text("""
+        UPDATE image_provenance
+        SET source_id = NULL
+        WHERE source_id IN (SELECT id FROM source WHERE url LIKE 'sidecar:%')
+    """))
+    deleted = conn.execute(text(
+        "DELETE FROM source WHERE url LIKE 'sidecar:%' RETURNING id"
+    )).rowcount
+    print(f"alembic 0030: deleted {deleted} sidecar synthetic source rows")
+
+
+def downgrade() -> None:
+    # Lossy migration — the deleted sidecar synthetics can't be
+    # restored from the orphan post.source_id / image_provenance.source_id
+    # values, and the partial unique index encodes a constraint that
+    # NULL-source Posts may now exist. No safe downgrade.
+    pass

alembic/versions/0031_source_backfill_runs_remaining.py

@@ -0,0 +1,45 @@
+"""source.backfill_runs_remaining: sticky deep-scan mode
+
+Revision ID: 0031
+Revises: 0030
+Create Date: 2026-06-01
+
+Tick vs backfill mode for subscription downloads. When
+`backfill_runs_remaining > 0`, the next N download runs use
+`skip: True` + 30-min timeout (walk full history). When 0, runs use
+`skip: "exit:20"` + 14.5-min timeout (catch-up mode, exits early once
+20 contiguous archived items are seen).
+
+Operator-flagged 2026-06-01 (Knuxy run #38887): a creator with ~550
+archived posts saturates the 870s catch-up timeout even when there is
+no new content, because gallery-dl's default `skip: True` keeps walking.
+Tick mode short-circuits that; backfill mode is the explicit opt-in for
+deep history scans.
+
+Default 0 (all existing subscriptions start in tick mode).
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0031"
+down_revision: Union[str, None] = "0030"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "source",
+        sa.Column(
+            "backfill_runs_remaining",
+            sa.Integer,
+            nullable=False,
+            server_default="0",
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("source", "backfill_runs_remaining")

alembic/versions/0032_source_error_type.py

@@ -0,0 +1,41 @@
+"""source.error_type: surface ErrorType taxonomy in FailingSourcesCard
+
+Revision ID: 0032
+Revises: 0031
+Create Date: 2026-06-02
+
+Audit 2026-06-02: the backend computes 13 ErrorType categories (auth_error,
+rate_limited, not_found, access_denied, validation_failed, etc.) and
+stamps each one on DownloadEvent.metadata, but the Source row only carried
+the free-text last_error. Operators couldn't bulk-triage failing sources
+("all auth_error → rotate cookies, all rate_limited → just wait") without
+opening Logs per row.
+
+This column receives the last error_type from _update_source_health
+and gets cleared on a successful run. Nullable + indexed so the failing-
+sources rollup can filter/group cheaply.
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0032"
+down_revision: Union[str, None] = "0031"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "source",
+        sa.Column("error_type", sa.String(length=32), nullable=True),
+    )
+    op.create_index(
+        "ix_source_error_type", "source", ["error_type"],
+    )
+
+
+def downgrade() -> None:
+    op.drop_index("ix_source_error_type", table_name="source")
+    op.drop_column("source", "error_type")

alembic/versions/0033_suggestion_threshold_default_070.py

@@ -0,0 +1,48 @@
+"""suggestion_threshold default 0.50 → 0.70
+
+Revision ID: 0033
+Revises: 0032
+Create Date: 2026-06-02
+
+Operator-flagged 2026-06-02 — the 0.50 default (set on 2026-06-01) is
+too noisy in practice; raise to 0.70 for both suggestion categories.
+
+Only conditionally updates singletons whose current value is still the
+2026-06-01 default (0.50). Operators who deliberately tuned their row
+to some other value (0.55, 0.65, 0.80, etc. via the Settings UI) keep
+their pick — the migration only catches the unchanged-default case.
+"""
+from typing import Sequence, Union
+
+from alembic import op
+
+revision: str = "0033"
+down_revision: Union[str, None] = "0032"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.execute(
+        "UPDATE ml_settings "
+        "SET suggestion_threshold_character = 0.70 "
+        "WHERE id = 1 AND suggestion_threshold_character = 0.50"
+    )
+    op.execute(
+        "UPDATE ml_settings "
+        "SET suggestion_threshold_general = 0.70 "
+        "WHERE id = 1 AND suggestion_threshold_general = 0.50"
+    )
+
+
+def downgrade() -> None:
+    op.execute(
+        "UPDATE ml_settings "
+        "SET suggestion_threshold_character = 0.50 "
+        "WHERE id = 1 AND suggestion_threshold_character = 0.70"
+    )
+    op.execute(
+        "UPDATE ml_settings "
+        "SET suggestion_threshold_general = 0.50 "
+        "WHERE id = 1 AND suggestion_threshold_general = 0.70"
+    )

alembic/versions/0034_artist_visit.py

@@ -0,0 +1,53 @@
+"""artist_visit: per-artist last-viewed timestamp for the "+N new" badge
+
+Revision ID: 0034
+Revises: 0033
+Create Date: 2026-06-03
+
+Powers the artists-directory "+N new since last visit" badge + ArtistView
+banner. Single row per artist (no user_id yet — rule #47 multi-user ACL
+is aspirational; widens to (user_id, artist_id) PK when User lands).
+
+Seed every existing artist with `last_viewed_at = NOW()` so the badge
+starts at 0 across the board — no noisy "you have 5000 unseen images"
+on first deploy. New artists auto-get a row via
+`ArtistService.find_or_create`.
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0034"
+down_revision: Union[str, None] = "0033"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "artist_visit",
+        sa.Column(
+            "artist_id",
+            sa.Integer,
+            sa.ForeignKey("artist.id", ondelete="CASCADE"),
+            primary_key=True,
+        ),
+        sa.Column(
+            "last_viewed_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.text("NOW()"),
+        ),
+    )
+    # Seed: every existing artist starts "fully caught up". Without this,
+    # every operator with N artists would see N badges (worth of every
+    # image ever imported) on first deploy.
+    op.execute(
+        "INSERT INTO artist_visit (artist_id, last_viewed_at) "
+        "SELECT id, NOW() FROM artist"
+    )
+
+
+def downgrade() -> None:
+    op.drop_table("artist_visit")

alembic/versions/0035_image_record_effective_date.py

@@ -0,0 +1,70 @@
+"""image_record.effective_date: materialized gallery sort key + index
+
+Revision ID: 0035
+Revises: 0034
+Create Date: 2026-06-04
+
+The gallery ordered/cursored on COALESCE(post.post_date,
+image_record.created_at) across the Post outer join. That expression spans
+two tables, so no index can serve it — every /scroll sorted a large slice
+of the library, and the frontend fired ten of them serially per initial
+load. Materialize the value into image_record.effective_date and index
+(effective_date DESC, id DESC) so the cursor scroll is an index range scan.
+
+Backfill = COALESCE(primary post's post_date, created_at) so existing rows
+keep their exact ordering. New rows get the created_at-equivalent server
+default; services/importer.py overrides it with the post's date when a
+primary post with a date is linked.
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0035"
+down_revision: Union[str, None] = "0034"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # Add nullable first so the backfill can populate before NOT NULL.
+    op.add_column(
+        "image_record",
+        sa.Column("effective_date", sa.DateTime(timezone=True), nullable=True),
+    )
+    # Pure set-based UPDATEs (no per-row params) — immune to the 65535
+    # bind-parameter ceiling regardless of library size.
+    op.execute(
+        """
+        UPDATE image_record AS ir
+        SET effective_date = COALESCE(p.post_date, ir.created_at)
+        FROM post AS p
+        WHERE ir.primary_post_id = p.id
+        """
+    )
+    op.execute(
+        """
+        UPDATE image_record
+        SET effective_date = created_at
+        WHERE effective_date IS NULL
+        """
+    )
+    op.alter_column(
+        "image_record",
+        "effective_date",
+        nullable=False,
+        server_default=sa.text("now()"),
+    )
+    # DESC/DESC matches the gallery's ORDER BY effective_date DESC, id DESC
+    # so the scroll is a forward index scan; raw SQL because alembic's
+    # column list doesn't express per-column DESC cleanly.
+    op.execute(
+        "CREATE INDEX ix_image_record_effective_date "
+        "ON image_record (effective_date DESC, id DESC)"
+    )
+
+
+def downgrade() -> None:
+    op.drop_index("ix_image_record_effective_date", table_name="image_record")
+    op.drop_column("image_record", "effective_date")

alembic/versions/0036_siglip_embedding_hnsw_index.py

@@ -0,0 +1,41 @@
+"""image_record.siglip_embedding: HNSW cosine index for "more like this"
+
+Revision ID: 0036
+Revises: 0035
+Create Date: 2026-06-04
+
+Gallery Phase 3 (visual similarity search) ranks images by
+`siglip_embedding.cosine_distance(source_embedding)`. Without an index that's
+a sequential scan computing a 1152-dim distance for every row — fine at small
+scale, but it grows linearly with the library. Add an HNSW index with
+`vector_cosine_ops` so the top-N nearest search is sub-50ms ANN.
+
+1152 dims is under pgvector's 2000-dim HNSW limit, so HNSW (no training,
+better recall than IVFFlat) is the right choice. ONE-TIME COST: building the
+index over the existing embeddings (~57k vectors on the operator's library)
+locks image_record for ~30-60s during this migration on deploy — acceptable
+for a single-operator homelab. NULL embeddings (videos / not-yet-embedded
+rows) are simply not indexed.
+"""
+from typing import Sequence, Union
+
+from alembic import op
+
+revision: str = "0036"
+down_revision: Union[str, None] = "0035"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # Raw SQL: alembic's create_index doesn't express the `USING hnsw (...
+    # vector_cosine_ops)` access-method + opclass cleanly. Must match the
+    # query's cosine_distance operator class to be usable by the planner.
+    op.execute(
+        "CREATE INDEX ix_image_record_siglip_hnsw "
+        "ON image_record USING hnsw (siglip_embedding vector_cosine_ops)"
+    )
+
+
+def downgrade() -> None:
+    op.drop_index("ix_image_record_siglip_hnsw", table_name="image_record")

alembic/versions/0037_patreon_seen_media.py

@@ -0,0 +1,53 @@
+"""patreon_seen_media: per-source ledger of already-ingested Patreon media
+
+Revision ID: 0037
+Revises: 0036
+Create Date: 2026-06-05
+
+Native Patreon ingester (build step 2a). Replaces gallery-dl's
+archive.sqlite3 with our own queryable table. The downloader upserts one
+row per (source, media) so routine walks skip media we've already
+processed; a future "recovery" mode bypasses the ledger to re-walk.
+
+`filehash` is a 32-hex Patreon CDN MD5, OR a video sentinel of the form
+``video:<post_id>:<media_id>`` — hence String(128). The unique
+constraint on (source_id, filehash) is the dedup upsert key.
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0037"
+down_revision: Union[str, None] = "0036"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "patreon_seen_media",
+        sa.Column("id", sa.Integer, primary_key=True),
+        sa.Column(
+            "source_id",
+            sa.Integer,
+            sa.ForeignKey("source.id", ondelete="CASCADE"),
+            nullable=False,
+            index=True,
+        ),
+        sa.Column("filehash", sa.String(128), nullable=False),
+        sa.Column("post_id", sa.String(64), nullable=True),
+        sa.Column(
+            "seen_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.text("NOW()"),
+        ),
+        sa.UniqueConstraint(
+            "source_id", "filehash", name="uq_patreon_seen_media_source_id"
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_table("patreon_seen_media")

alembic/versions/0038_patreon_failed_media.py

@@ -0,0 +1,58 @@
+"""patreon_failed_media: per-source dead-letter ledger for failing Patreon media
+
+Revision ID: 0038
+Revises: 0037
+Create Date: 2026-06-06
+
+Plan #705 (#7). Media that keeps failing to download/validate (404'd CDN,
+deleted post, geo-blocked Mux, persistently-corrupt bytes) gets recorded here
+with an attempt counter; once it crosses the dead-letter threshold the ingester
+skips it on routine walks (recovery still re-attempts). A clean download clears
+the row. UNIQUE (source_id, filehash) is the upsert key (same media key the
+seen-ledger uses).
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0038"
+down_revision: Union[str, None] = "0037"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "patreon_failed_media",
+        sa.Column("id", sa.Integer, primary_key=True),
+        sa.Column(
+            "source_id",
+            sa.Integer,
+            sa.ForeignKey("source.id", ondelete="CASCADE"),
+            nullable=False,
+            index=True,
+        ),
+        sa.Column("filehash", sa.String(128), nullable=False),
+        sa.Column("attempts", sa.Integer, nullable=False, server_default="1"),
+        sa.Column("last_error", sa.Text, nullable=True),
+        sa.Column(
+            "first_failed_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.text("NOW()"),
+        ),
+        sa.Column(
+            "last_failed_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.text("NOW()"),
+        ),
+        sa.UniqueConstraint(
+            "source_id", "filehash", name="uq_patreon_failed_media_source_id"
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_table("patreon_failed_media")

alembic/versions/0039_library_audit_resume.py

@@ -0,0 +1,40 @@
+"""library_audit_run: resume cursor + progress timestamp for chunked scans
+
+Revision ID: 0039
+Revises: 0038
+Create Date: 2026-06-07
+
+scan_library_for_rule used to run one 2h pass that timed out on large libraries
+and monopolized the concurrency-1 maintenance queue (operator-flagged). It now
+runs short time-boxed chunks that re-enqueue: `resume_after_id` persists the
+keyset cursor so the next chunk continues where it left off, and
+`last_progress_at` lets the recovery sweep tell a progressing multi-chunk audit
+from a genuinely stuck one.
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0039"
+down_revision: Union[str, None] = "0038"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "library_audit_run",
+        sa.Column(
+            "resume_after_id", sa.Integer, nullable=False, server_default="0"
+        ),
+    )
+    op.add_column(
+        "library_audit_run",
+        sa.Column("last_progress_at", sa.DateTime(timezone=True), nullable=True),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("library_audit_run", "last_progress_at")
+    op.drop_column("library_audit_run", "resume_after_id")

alembic/versions/0040_series_chapters.py

@@ -0,0 +1,108 @@
+"""series chapters: chapter layer over series_page (FC-6.1)
+
+Revision ID: 0040
+Revises: 0039
+Create Date: 2026-06-07
+
+A series (Tag kind='series') gains an ordered chapter layer. Reading order
+becomes (series_chapter.chapter_number, series_page.page_number). Every existing
+series is backfilled into a single auto-chapter (chapter_number=1) holding its
+current flat pages, so no data is lost and the old flat ordering is preserved.
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0040"
+down_revision: Union[str, None] = "0039"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "series_chapter",
+        sa.Column("id", sa.Integer, primary_key=True),
+        sa.Column(
+            "series_tag_id",
+            sa.Integer,
+            sa.ForeignKey("tag.id", ondelete="CASCADE"),
+            nullable=False,
+        ),
+        sa.Column("chapter_number", sa.Integer, nullable=False),
+        sa.Column("title", sa.Text, nullable=True),
+        sa.Column(
+            "is_placeholder", sa.Boolean, nullable=False, server_default="false"
+        ),
+        sa.Column("stated_page_start", sa.Integer, nullable=True),
+        sa.Column("stated_page_end", sa.Integer, nullable=True),
+        sa.Column(
+            "created_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.text("now()"),
+        ),
+        sa.Column(
+            "updated_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.text("now()"),
+        ),
+    )
+    op.create_index(
+        "ix_series_chapter_series_tag_id", "series_chapter", ["series_tag_id"]
+    )
+
+    # New columns on series_page; chapter_id starts nullable so we can backfill.
+    op.add_column(
+        "series_page", sa.Column("chapter_id", sa.Integer, nullable=True)
+    )
+    op.add_column(
+        "series_page", sa.Column("stated_page", sa.Integer, nullable=True)
+    )
+
+    conn = op.get_bind()
+    # One auto-chapter per existing series (any series_tag_id present in pages).
+    conn.execute(
+        sa.text(
+            "INSERT INTO series_chapter "
+            "(series_tag_id, chapter_number, is_placeholder, created_at, updated_at) "
+            "SELECT DISTINCT series_tag_id, 1, false, now(), now() "
+            "FROM series_page"
+        )
+    )
+    # Point every existing page at its series' auto-chapter.
+    conn.execute(
+        sa.text(
+            "UPDATE series_page sp "
+            "SET chapter_id = sc.id "
+            "FROM series_chapter sc "
+            "WHERE sc.series_tag_id = sp.series_tag_id"
+        )
+    )
+
+    # Now lock chapter_id down: NOT NULL + FK (cascade) + index.
+    op.alter_column("series_page", "chapter_id", nullable=False)
+    op.create_foreign_key(
+        "fk_series_page_chapter_id",
+        "series_page",
+        "series_chapter",
+        ["chapter_id"],
+        ["id"],
+        ondelete="CASCADE",
+    )
+    op.create_index(
+        "ix_series_page_chapter_id", "series_page", ["chapter_id"]
+    )
+
+
+def downgrade() -> None:
+    op.drop_index("ix_series_page_chapter_id", table_name="series_page")
+    op.drop_constraint(
+        "fk_series_page_chapter_id", "series_page", type_="foreignkey"
+    )
+    op.drop_column("series_page", "stated_page")
+    op.drop_column("series_page", "chapter_id")
+    op.drop_index("ix_series_chapter_series_tag_id", table_name="series_chapter")
+    op.drop_table("series_chapter")

alembic/versions/0041_series_suggestions.py

@@ -0,0 +1,98 @@
+"""series suggestions: assisted-continuation matcher (FC-6.3)
+
+Revision ID: 0041
+Revises: 0040
+Create Date: 2026-06-07
+
+A confirm-only queue of "this post may continue this series" hints, plus two
+import_settings knobs (enable + score threshold) for the matcher.
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0041"
+down_revision: Union[str, None] = "0040"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "series_suggestion",
+        sa.Column("id", sa.Integer, primary_key=True),
+        sa.Column(
+            "post_id",
+            sa.Integer,
+            sa.ForeignKey("post.id", ondelete="CASCADE"),
+            nullable=False,
+        ),
+        sa.Column(
+            "series_tag_id",
+            sa.Integer,
+            sa.ForeignKey("tag.id", ondelete="CASCADE"),
+            nullable=False,
+        ),
+        sa.Column("score", sa.Float, nullable=False),
+        sa.Column("signals", sa.JSON, nullable=True),
+        sa.Column(
+            "status", sa.String(16), nullable=False, server_default="pending"
+        ),
+        sa.Column(
+            "created_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.text("now()"),
+        ),
+        sa.Column(
+            "updated_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.text("now()"),
+        ),
+        sa.UniqueConstraint(
+            "post_id", "series_tag_id", name="uq_series_suggestion_post_series"
+        ),
+    )
+    op.create_index(
+        "ix_series_suggestion_post_id", "series_suggestion", ["post_id"]
+    )
+    op.create_index(
+        "ix_series_suggestion_series_tag_id",
+        "series_suggestion",
+        ["series_tag_id"],
+    )
+    op.create_index(
+        "ix_series_suggestion_status", "series_suggestion", ["status"]
+    )
+
+    op.add_column(
+        "import_settings",
+        sa.Column(
+            "series_suggest_enabled",
+            sa.Boolean,
+            nullable=False,
+            server_default=sa.true(),
+        ),
+    )
+    op.add_column(
+        "import_settings",
+        sa.Column(
+            "series_suggest_threshold",
+            sa.Float,
+            nullable=False,
+            server_default="0.5",
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("import_settings", "series_suggest_threshold")
+    op.drop_column("import_settings", "series_suggest_enabled")
+    op.drop_index("ix_series_suggestion_status", table_name="series_suggestion")
+    op.drop_index(
+        "ix_series_suggestion_series_tag_id", table_name="series_suggestion"
+    )
+    op.drop_index("ix_series_suggestion_post_id", table_name="series_suggestion")
+    op.drop_table("series_suggestion")

alembic/versions/0042_series_chapter_stated_part.py

@@ -0,0 +1,32 @@
+"""series chapter stated_part: operator-facing Part N label (FC-6.4)
+
+Revision ID: 0042
+Revises: 0041
+Create Date: 2026-06-07
+
+A chapter's positional chapter_number is auto-managed (rewritten 1..N on
+reorder/delete), so it can't double as the installment number the operator wants
+to type (e.g. a series authored from a post that is Part 2). Add a nullable
+stated_part alongside it — the same split as series_page.page_number (order) vs
+series_page.stated_page (printed number). Nullable; the UI falls back to
+chapter_number when unset.
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0042"
+down_revision: Union[str, None] = "0041"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "series_chapter", sa.Column("stated_part", sa.Integer, nullable=True)
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("series_chapter", "stated_part")

alembic/versions/0043_post_attachment_per_post_unique.py

@@ -0,0 +1,62 @@
+"""post_attachment: per-post sha uniqueness (empty-post flood fix)
+
+Revision ID: 0043
+Revises: 0042
+Create Date: 2026-06-08
+
+PostAttachment.sha256 was GLOBALLY unique, so a non-art file the creator attaches
+to many posts (a standard pdf/zip/link-card) only ever got ONE row — on the first
+post — leaving every later post a bare shell (no image, no attachment). The native
+Patreon backfill of Anduo surfaced 1589 such shells (operator-flagged 2026-06-08).
+
+Switch to PER-POST uniqueness: the on-disk blob stays sha-deduped, but each post
+gets its own row. Replace the unique sha256 index with a plain lookup index plus
+two partial uniques — (post_id, sha256) for real posts and (sha256) for the
+NULL-post filesystem case (still one row per file there).
+
+Existing data has ≤1 row per sha (the old global unique), so the new partial
+uniques can't be violated on upgrade — no data backfill needed here. The bare-post
+shells themselves are removed by the separate prune-empty-posts cleanup tool.
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0043"
+down_revision: Union[str, None] = "0042"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # Drop the global unique index; recreate it as a plain (non-unique) lookup
+    # index so sha-based reads keep their index (matches the model's index=True).
+    op.drop_index("ix_post_attachment_sha256", table_name="post_attachment")
+    op.create_index(
+        "ix_post_attachment_sha256", "post_attachment", ["sha256"],
+    )
+    op.create_index(
+        "uq_post_attachment_post_sha", "post_attachment",
+        ["post_id", "sha256"], unique=True,
+        postgresql_where=sa.text("post_id IS NOT NULL"),
+    )
+    op.create_index(
+        "uq_post_attachment_null_post_sha", "post_attachment",
+        ["sha256"], unique=True,
+        postgresql_where=sa.text("post_id IS NULL"),
+    )
+
+
+def downgrade() -> None:
+    op.drop_index(
+        "uq_post_attachment_null_post_sha", table_name="post_attachment"
+    )
+    op.drop_index(
+        "uq_post_attachment_post_sha", table_name="post_attachment"
+    )
+    op.drop_index("ix_post_attachment_sha256", table_name="post_attachment")
+    op.create_index(
+        "ix_post_attachment_sha256", "post_attachment", ["sha256"],
+        unique=True,
+    )

alembic/versions/0044_ml_settings_tagger_store_floor.py

@@ -0,0 +1,37 @@
+"""ml_settings.tagger_store_floor
+
+The ingest confidence floor below which tagger predictions are not stored,
+promoted from the TAGGER_STORE_FLOOR env var to a DB-backed, UI-tunable
+setting. Default 0.70 (was an env default of 0.05): the suggestion path
+already filters at 0.70 and the centroid/learned path covers low-confidence
+preferred tags, so the sub-0.70 tail was redundant weight — it had grown
+image_record's TOAST to ~100 GB. See plan-task #764.
+
+Revision ID: 0044
+Revises: 0043
+Create Date: 2026-06-10
+
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0044"
+down_revision: Union[str, None] = "0043"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "ml_settings",
+        sa.Column(
+            "tagger_store_floor", sa.Float(),
+            nullable=False, server_default="0.7",
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("ml_settings", "tagger_store_floor")

alembic/versions/0045_image_prediction_table.py

@@ -0,0 +1,69 @@
+"""image_prediction table (DDL only — backfill runs as a background task)
+
+Normalizes the per-image tagger predictions out of the JSON blob into a
+queryable table (#768). This migration creates ONLY the table + indexes — it
+is pure DDL and commits instantly, so web boots immediately.
+
+The data backfill from the existing image_record.tagger_predictions JSON is
+deliberately NOT done here. Doing it inline made the whole migration one
+transaction over the ~100 GB TOAST: nothing committed until the very end, it
+was invisible/unmonitorable mid-run, and an early MATERIALIZED-CTE form spilled
+the full 100 GB to temp. Instead the backfill is the
+backend.app.tasks.admin.backfill_image_predictions_task — batched by id window,
+committed per chunk (visible progress + resumable), idempotent
+(ON CONFLICT DO NOTHING). Trigger it from Settings → Maintenance once web is up.
+
+The old image_record.tagger_predictions column is left in place (vestigial) and
+dropped in a follow-up once the backfill + code cutover are verified — dropping
+it needs an ACCESS EXCLUSIVE lock on the hot image_record table (the 0044 lock
+class), so it's deferred to a quiesced-worker window.
+
+Revision ID: 0045
+Revises: 0044
+Create Date: 2026-06-10
+
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0045"
+down_revision: Union[str, None] = "0044"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "image_prediction",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column(
+            "image_record_id", sa.Integer(),
+            sa.ForeignKey("image_record.id", ondelete="CASCADE"),
+            nullable=False,
+        ),
+        sa.Column("raw_name", sa.String(length=255), nullable=False),
+        sa.Column("category", sa.String(length=64), nullable=False),
+        sa.Column("score", sa.Float(), nullable=False),
+        sa.UniqueConstraint(
+            "image_record_id", "raw_name", name="image_raw_name",
+        ),
+    )
+    op.create_index(
+        "ix_image_prediction_image", "image_prediction", ["image_record_id"],
+    )
+    op.create_index(
+        "ix_image_prediction_name_score", "image_prediction",
+        ["raw_name", "score"],
+    )
+    # No data backfill here — see the module docstring. The one-time copy from
+    # image_record.tagger_predictions runs as backfill_image_predictions_task
+    # (batched, resumable, idempotent), kept out of this transaction so web boots
+    # without waiting on a ~100 GB pass.
+
+
+def downgrade() -> None:
+    op.drop_index("ix_image_prediction_name_score", "image_prediction")
+    op.drop_index("ix_image_prediction_image", "image_prediction")
+    op.drop_table("image_prediction")

alembic/versions/0046_drop_tagger_predictions.py

@@ -0,0 +1,43 @@
+"""drop image_record.tagger_predictions (predictions normalized to image_prediction)
+
+Final step of #768. The per-tag predictions now live in the image_prediction
+table (backfilled from the JSON, read by suggestions + allowlist, written by
+tag_and_embed). The old JSON column is dead weight — and it's the ~100 GB of
+sub-0.70 score tail that bloated image_record's TOAST and broke DB backups
+(#739). Dropping it is a fast catalog change; it does NOT reclaim the disk on
+its own — run `VACUUM FULL image_record` (or pg_repack) afterward, off-hours,
+to return the space to the OS so backups go small.
+
+DROP COLUMN needs a brief ACCESS EXCLUSIVE lock on image_record; env.py's
+lock_timeout guards it, so quiesce the ml-worker if a tagging run is in flight
+(see the migration-lock reference). tagger_model_version is kept — it's the
+"has this been tagged / is it current?" signal the backfill sweep reads.
+
+Revision ID: 0046
+Revises: 0045
+Create Date: 2026-06-11
+
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0046"
+down_revision: Union[str, None] = "0045"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.drop_column("image_record", "tagger_predictions")
+
+
+def downgrade() -> None:
+    # Re-add the column empty. The JSON data is not restored (it lived only in
+    # this column); a downgrade would re-tag or backfill from image_prediction
+    # separately if ever needed.
+    op.add_column(
+        "image_record",
+        sa.Column("tagger_predictions", sa.JSON(), nullable=True),
+    )

alembic/versions/0047_series_chapter_dividers.py

@@ -0,0 +1,175 @@
+"""series chapters become cosmetic dividers; pages become one series-global run
+
+FC-6.x reframe (#789). A series is now ONE flat, series-global ordered run of
+pages; chapters stop owning pages and become labeled dividers anchored to the
+page that begins them.
+
+Migration (order matters — series_page.chapter_id cascades, so it must be
+dropped BEFORE any chapter row is deleted, or pages would cascade away):
+  a. Renumber series_page.page_number to a series-global 1..N (ordered by the
+     OLD (chapter_number, page_number)).
+  b. Add series_chapter.anchor_page_id and populate it with each chapter's first
+     page (lowest new page_number).
+  c. Drop series_page.chapter_id (severs the cascade link).
+  d. Prune chapters that shouldn't become dividers: empty/placeholder ones (no
+     anchor) and the redundant unlabeled chapter that would sit at page 1.
+  e. Reshape series_chapter into the divider: drop chapter_number,
+     is_placeholder, stated_page_start/end; make anchor_page_id NOT NULL +
+     UNIQUE + FK→series_page ON DELETE CASCADE.
+
+Revision ID: 0047
+Revises: 0046
+Create Date: 2026-06-11
+
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0047"
+down_revision: Union[str, None] = "0046"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # a. series-global page numbering, preserving the old reading order.
+    op.execute(
+        """
+        WITH ordered AS (
+            SELECT sp.id,
+                   ROW_NUMBER() OVER (
+                       PARTITION BY sp.series_tag_id
+                       ORDER BY sc.chapter_number, sp.page_number, sp.id
+                   ) AS rn
+            FROM series_page sp
+            JOIN series_chapter sc ON sc.id = sp.chapter_id
+        )
+        UPDATE series_page sp
+        SET page_number = ordered.rn
+        FROM ordered
+        WHERE sp.id = ordered.id
+        """
+    )
+
+    # b. anchor each existing chapter at its first page (lowest new page_number).
+    op.add_column(
+        "series_chapter",
+        sa.Column("anchor_page_id", sa.Integer(), nullable=True),
+    )
+    op.execute(
+        """
+        WITH firsts AS (
+            SELECT DISTINCT ON (sp.chapter_id)
+                   sp.chapter_id, sp.id AS page_id
+            FROM series_page sp
+            ORDER BY sp.chapter_id, sp.page_number, sp.id
+        )
+        UPDATE series_chapter sc
+        SET anchor_page_id = firsts.page_id
+        FROM firsts
+        WHERE firsts.chapter_id = sc.id
+        """
+    )
+
+    # c. sever the ownership link (drops the FK + index with the column) BEFORE
+    #    pruning chapters, so deleting a chapter can't cascade-delete its pages.
+    op.drop_column("series_page", "chapter_id")
+
+    # d. prune chapters that don't become dividers: placeholders / empty ones
+    #    (no anchor), and the unlabeled chapter that would land redundantly at
+    #    page 1 (the series just starts — no divider needed there).
+    op.execute(
+        """
+        DELETE FROM series_chapter sc
+        USING (
+            SELECT sc2.id
+            FROM series_chapter sc2
+            LEFT JOIN series_page sp ON sp.id = sc2.anchor_page_id
+            WHERE sc2.anchor_page_id IS NULL
+               OR (sp.page_number = 1
+                   AND sc2.title IS NULL
+                   AND sc2.stated_part IS NULL)
+        ) gone
+        WHERE sc.id = gone.id
+        """
+    )
+
+    # e. reshape into the divider model.
+    op.drop_column("series_chapter", "chapter_number")
+    op.drop_column("series_chapter", "is_placeholder")
+    op.drop_column("series_chapter", "stated_page_start")
+    op.drop_column("series_chapter", "stated_page_end")
+    op.alter_column("series_chapter", "anchor_page_id", nullable=False)
+    op.create_unique_constraint(
+        "uq_series_chapter_anchor_page", "series_chapter", ["anchor_page_id"]
+    )
+    op.create_foreign_key(
+        "fk_series_chapter_anchor_page",
+        "series_chapter",
+        "series_page",
+        ["anchor_page_id"],
+        ["id"],
+        ondelete="CASCADE",
+    )
+
+
+def downgrade() -> None:
+    # Lossy: dividers can't be reconstructed as owning chapters. Collapse back to
+    # exactly one chapter per series that owns all its pages in order.
+    op.add_column(
+        "series_page", sa.Column("chapter_id", sa.Integer(), nullable=True)
+    )
+    op.drop_constraint(
+        "fk_series_chapter_anchor_page", "series_chapter", type_="foreignkey"
+    )
+    op.drop_constraint(
+        "uq_series_chapter_anchor_page", "series_chapter", type_="unique"
+    )
+    op.drop_column("series_chapter", "anchor_page_id")
+    op.add_column(
+        "series_chapter",
+        sa.Column(
+            "chapter_number", sa.Integer(), nullable=False, server_default="1"
+        ),
+    )
+    op.add_column(
+        "series_chapter",
+        sa.Column(
+            "is_placeholder", sa.Boolean(), nullable=False,
+            server_default="false",
+        ),
+    )
+    op.add_column(
+        "series_chapter",
+        sa.Column("stated_page_start", sa.Integer(), nullable=True),
+    )
+    op.add_column(
+        "series_chapter",
+        sa.Column("stated_page_end", sa.Integer(), nullable=True),
+    )
+    op.execute("DELETE FROM series_chapter")
+    op.execute(
+        """
+        INSERT INTO series_chapter (series_tag_id, chapter_number)
+        SELECT DISTINCT series_tag_id, 1 FROM series_page
+        """
+    )
+    op.execute(
+        """
+        UPDATE series_page sp
+        SET chapter_id = sc.id
+        FROM series_chapter sc
+        WHERE sc.series_tag_id = sp.series_tag_id
+        """
+    )
+    op.alter_column("series_page", "chapter_id", nullable=False)
+    op.create_foreign_key(
+        "fk_series_page_chapter",
+        "series_page",
+        "series_chapter",
+        ["chapter_id"],
+        ["id"],
+        ondelete="CASCADE",
+    )

alembic/versions/0048_series_page_pending_status.py

@@ -0,0 +1,45 @@
+"""series_page pending staging: status + nullable page_number (#789 Phase 2)
+
+Pages added from a post no longer append straight into the run — they land
+'pending' with a NULL page_number, staged grouped by their source post so the
+operator can drop junk (text-free alts, bumpers) and place the keepers into the
+sequence. A page only gets a series-global page_number once it's 'placed'.
+
+Revision ID: 0048
+Revises: 0047
+Create Date: 2026-06-11
+
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0048"
+down_revision: Union[str, None] = "0047"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "series_page",
+        sa.Column(
+            "status", sa.String(length=16), nullable=False,
+            server_default="placed",
+        ),
+    )
+    op.alter_column(
+        "series_page", "page_number",
+        existing_type=sa.Integer(), nullable=True,
+    )
+
+
+def downgrade() -> None:
+    # Lossy: pending pages are unsorted staging rows with no order — drop them.
+    op.execute("DELETE FROM series_page WHERE status = 'pending'")
+    op.alter_column(
+        "series_page", "page_number",
+        existing_type=sa.Integer(), nullable=False,
+    )
+    op.drop_column("series_page", "status")

alembic/versions/0049_external_link_table.py

@@ -0,0 +1,90 @@
+"""external_link table — off-platform file-host links found in post bodies
+
+Creators host the real files on mega.nz / Google Drive / MediaFire / Dropbox /
+Pixeldrain and link them in the post text. This table records each such link
+(so nothing is silently dropped), and doubles as the dedup + dead-letter ledger
+the download worker (a later slice) walks. `url` keeps the FULL link including
+the `#fragment` — mega.nz's decryption key lives there; truncating it makes the
+file undownloadable.
+
+CHECK whitelists for host + status include the full enum up front (incl. the
+download-worker statuses) so the worker slice needs no constraint migration.
+
+Revision ID: 0049
+Revises: 0048
+Create Date: 2026-06-14
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0049"
+down_revision: Union[str, None] = "0048"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "external_link",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column(
+            "post_id", sa.Integer(),
+            sa.ForeignKey("post.id", ondelete="CASCADE"), nullable=False,
+        ),
+        sa.Column(
+            "artist_id", sa.Integer(),
+            sa.ForeignKey("artist.id", ondelete="SET NULL"), nullable=True,
+        ),
+        sa.Column("host", sa.String(length=16), nullable=False),
+        sa.Column("url", sa.Text(), nullable=False),
+        sa.Column("label", sa.Text(), nullable=True),
+        sa.Column(
+            "status", sa.String(length=16), nullable=False,
+            server_default="pending",
+        ),
+        sa.Column("attempts", sa.Integer(), nullable=False, server_default="0"),
+        sa.Column("last_error", sa.Text(), nullable=True),
+        sa.Column(
+            "attachment_id", sa.Integer(),
+            sa.ForeignKey("post_attachment.id", ondelete="SET NULL"),
+            nullable=True,
+        ),
+        sa.Column(
+            "created_at", sa.DateTime(timezone=True), nullable=False,
+            server_default=sa.func.now(),
+        ),
+        sa.Column("completed_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("duration_seconds", sa.Float(), nullable=True),
+        sa.CheckConstraint(
+            "host IN ('mega','gdrive','mediafire','dropbox','pixeldrain')",
+            name="ck_external_link_host",
+        ),
+        sa.CheckConstraint(
+            "status IN ('pending','downloading','downloaded','failed',"
+            "'skipped','dead')",
+            name="ck_external_link_status",
+        ),
+    )
+    op.create_index(
+        "ix_external_link_post_id", "external_link", ["post_id"],
+    )
+    op.create_index(
+        "ix_external_link_artist_id", "external_link", ["artist_id"],
+    )
+    op.create_index(
+        "ix_external_link_status", "external_link", ["status"],
+    )
+    op.create_index(
+        "uq_external_link_post_url", "external_link", ["post_id", "url"],
+        unique=True,
+    )
+
+
+def downgrade() -> None:
+    op.drop_index("uq_external_link_post_url", table_name="external_link")
+    op.drop_index("ix_external_link_status", table_name="external_link")
+    op.drop_index("ix_external_link_artist_id", table_name="external_link")
+    op.drop_index("ix_external_link_post_id", table_name="external_link")
+    op.drop_table("external_link")

alembic/versions/0050_external_link_host_toggles.py

@@ -0,0 +1,38 @@
+"""import_settings: per-host enable toggles for external file-host downloads
+
+Operator levers (#830): disable a single host (e.g. mega.nz when it's
+rate-limiting/banning) without touching the others. The worker reads these via
+getattr and defaults to enabled, so the toggles default TRUE (works out of the
+box, rule #26).
+
+Revision ID: 0050
+Revises: 0049
+Create Date: 2026-06-14
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0050"
+down_revision: Union[str, None] = "0049"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+_HOSTS = ("mega", "gdrive", "mediafire", "dropbox", "pixeldrain")
+
+
+def upgrade() -> None:
+    for host in _HOSTS:
+        op.add_column(
+            "import_settings",
+            sa.Column(
+                f"extdl_{host}_enabled", sa.Boolean(), nullable=False,
+                server_default=sa.true(),
+            ),
+        )
+
+
+def downgrade() -> None:
+    for host in _HOSTS:
+        op.drop_column("import_settings", f"extdl_{host}_enabled")

alembic/versions/0051_image_source_provenance.py

@@ -0,0 +1,38 @@
+"""image_record: source_url + source_filehash (inline-image localization)
+
+#830 Phase 2. To render a post body faithfully we serve LOCAL copies of inline
+images instead of hotlinking the public CDN. The join key between a body
+`<img src=CDN>` and the local file is the CDN's 32-hex filehash (the same
+identity extract_media dedups by). Persist it (indexed) plus the full source
+URL for provenance/debugging. Both NULL for filesystem-imported / pre-existing
+rows — those fall back to hotlinking until re-downloaded.
+
+Revision ID: 0051
+Revises: 0050
+Create Date: 2026-06-14
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0051"
+down_revision: Union[str, None] = "0050"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column("image_record", sa.Column("source_url", sa.Text(), nullable=True))
+    op.add_column(
+        "image_record", sa.Column("source_filehash", sa.String(length=32), nullable=True)
+    )
+    op.create_index(
+        "ix_image_record_source_filehash", "image_record", ["source_filehash"]
+    )
+
+
+def downgrade() -> None:
+    op.drop_index("ix_image_record_source_filehash", table_name="image_record")
+    op.drop_column("image_record", "source_filehash")
+    op.drop_column("image_record", "source_url")

alembic/versions/0052_image_duration_seconds.py

@@ -0,0 +1,32 @@
+"""image_record: duration_seconds (Tier-1 video near-dup key)
+
+#871. Videos previously deduped on sha256 only (pHash is images-only), so a
+different encode/remux of the same video imported as a distinct record. Persist
+the container duration so the importer can treat same-artist videos with matching
+duration (+ aspect ratio) as the same content and dedup/supersede like images.
+NULL for images and for video rows imported before this column existed (a
+backfill re-probes those so they participate in dedup).
+
+Revision ID: 0052
+Revises: 0051
+Create Date: 2026-06-16
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0052"
+down_revision: Union[str, None] = "0051"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "image_record", sa.Column("duration_seconds", sa.Float(), nullable=True)
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("image_record", "duration_seconds")

alembic/versions/0053_ml_settings_video_tagging.py

@@ -0,0 +1,49 @@
+"""ml_settings: video tagging knobs (cadence sampling + noise floor)
+
+#747. Video tag quality/perf: sample frames at a fixed cadence (interval) so a
+tag's frame-presence reflects real screen time, cap total frames so long videos
+stay bounded, and keep a tag only if it appears in >= min_tag_frames sampled
+frames. Operator-tunable via Settings → ML (replaces the VIDEO_ML_FRAMES env var).
+
+Revision ID: 0053
+Revises: 0052
+Create Date: 2026-06-16
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0053"
+down_revision: Union[str, None] = "0052"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "ml_settings",
+        sa.Column(
+            "video_frame_interval_seconds", sa.Float(), nullable=False,
+            server_default="4.0",
+        ),
+    )
+    op.add_column(
+        "ml_settings",
+        sa.Column(
+            "video_max_frames", sa.Integer(), nullable=False, server_default="64",
+        ),
+    )
+    op.add_column(
+        "ml_settings",
+        sa.Column(
+            "video_min_tag_frames", sa.Integer(), nullable=False,
+            server_default="3",
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("ml_settings", "video_min_tag_frames")
+    op.drop_column("ml_settings", "video_max_frames")
+    op.drop_column("ml_settings", "video_frame_interval_seconds")

alembic/versions/0054_subscribestar_ledgers.py

@@ -0,0 +1,82 @@
+"""subscribestar_seen_media + subscribestar_failed_media: per-source ledgers
+
+Revision ID: 0054
+Revises: 0053
+Create Date: 2026-06-17
+
+SubscribeStar native ingester (phase 1 of the gallery-dl → native-core
+migration). Mirrors the Patreon ledger tables (0037/0038): a seen-ledger so
+routine walks skip already-ingested media (recovery bypasses it) and a
+dead-letter ledger so persistently-failing media stops re-burning backfill
+chunks. `filehash` is a CDN content hash when present, else a synthesized
+``<post_id>:<filename>`` key — hence String(128). UNIQUE (source_id, filehash)
+is the upsert key on each.
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0054"
+down_revision: Union[str, None] = "0053"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "subscribestar_seen_media",
+        sa.Column("id", sa.Integer, primary_key=True),
+        sa.Column(
+            "source_id",
+            sa.Integer,
+            sa.ForeignKey("source.id", ondelete="CASCADE"),
+            nullable=False,
+            index=True,
+        ),
+        sa.Column("filehash", sa.String(128), nullable=False),
+        sa.Column("post_id", sa.String(64), nullable=True),
+        sa.Column(
+            "seen_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.text("NOW()"),
+        ),
+        sa.UniqueConstraint(
+            "source_id", "filehash", name="uq_subscribestar_seen_media_source_id"
+        ),
+    )
+    op.create_table(
+        "subscribestar_failed_media",
+        sa.Column("id", sa.Integer, primary_key=True),
+        sa.Column(
+            "source_id",
+            sa.Integer,
+            sa.ForeignKey("source.id", ondelete="CASCADE"),
+            nullable=False,
+            index=True,
+        ),
+        sa.Column("filehash", sa.String(128), nullable=False),
+        sa.Column("attempts", sa.Integer, nullable=False, server_default="1"),
+        sa.Column("last_error", sa.Text, nullable=True),
+        sa.Column(
+            "first_failed_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.text("NOW()"),
+        ),
+        sa.Column(
+            "last_failed_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.text("NOW()"),
+        ),
+        sa.UniqueConstraint(
+            "source_id", "filehash", name="uq_subscribestar_failed_media_source_id"
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_table("subscribestar_failed_media")
+    op.drop_table("subscribestar_seen_media")

alembic/versions/0055_image_provenance_from_attachment.py

@@ -0,0 +1,55 @@
+"""image_provenance: from_attachment_id (which archive an image was extracted from)
+
+Milestone #87. When an image is pulled out of a .zip/.rar, record WHICH archive
+PostAttachment it came from, so the provenance UI can show the single archive a
+file lives inside instead of every attachment on the post. Nullable FK with
+ON DELETE SET NULL — a loose (non-archive) download leaves it NULL, and deleting
+the archive attachment forgets the linkage without destroying the (image, post)
+provenance edge. Existing rows are NULL until the reextract backfill stamps them.
+
+Revision ID: 0055
+Revises: 0054
+Create Date: 2026-06-22
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0055"
+down_revision: Union[str, None] = "0054"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "image_provenance",
+        sa.Column("from_attachment_id", sa.Integer(), nullable=True),
+    )
+    op.create_index(
+        "ix_image_provenance_from_attachment_id",
+        "image_provenance",
+        ["from_attachment_id"],
+    )
+    op.create_foreign_key(
+        "fk_image_provenance_from_attachment",
+        "image_provenance",
+        "post_attachment",
+        ["from_attachment_id"],
+        ["id"],
+        ondelete="SET NULL",
+    )
+
+
+def downgrade() -> None:
+    op.drop_constraint(
+        "fk_image_provenance_from_attachment",
+        "image_provenance",
+        type_="foreignkey",
+    )
+    op.drop_index(
+        "ix_image_provenance_from_attachment_id",
+        table_name="image_provenance",
+    )
+    op.drop_column("image_provenance", "from_attachment_id")

alembic/versions/0056_tag_eval_run.py

@@ -0,0 +1,43 @@
+"""tag_eval_run: persisted head-vs-centroid tagging eval runs (#1130)
+
+Milestone #114 slice 1. A long ml-queue eval whose full report must SURVIVE
+navigation, so the run + report live in a row the admin card rehydrates from
+(mirrors library_audit_run). running -> ready / error.
+
+Revision ID: 0056
+Revises: 0055
+Create Date: 2026-06-28
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+from sqlalchemy.dialects.postgresql import JSONB
+
+revision: str = "0056"
+down_revision: Union[str, None] = "0055"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "tag_eval_run",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column("params", JSONB(), nullable=False),
+        sa.Column("status", sa.String(length=16), nullable=False, server_default="running"),
+        sa.Column(
+            "started_at", sa.DateTime(timezone=True), nullable=False,
+            server_default=sa.func.now(),
+        ),
+        sa.Column("finished_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("report", JSONB(), nullable=True),
+        sa.Column("error", sa.Text(), nullable=True),
+        sa.Column("last_progress_at", sa.DateTime(timezone=True), nullable=True),
+    )
+    op.create_index("ix_tag_eval_run_status", "tag_eval_run", ["status"])
+
+
+def downgrade() -> None:
+    op.drop_index("ix_tag_eval_run_status", table_name="tag_eval_run")
+    op.drop_table("tag_eval_run")

alembic/versions/0057_tag_positive_confirmation.py

@@ -0,0 +1,40 @@
+"""tag_positive_confirmation: operator-affirmed correct positives (#1130)
+
+Mirror of tag_suggestion_rejection. "Keep" on a doubted positive records here so
+the eval's doubts list stops resurfacing confirmed-correct images every run.
+
+Revision ID: 0057
+Revises: 0056
+Create Date: 2026-06-28
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0057"
+down_revision: Union[str, None] = "0056"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "tag_positive_confirmation",
+        sa.Column(
+            "image_record_id", sa.Integer(),
+            sa.ForeignKey("image_record.id", ondelete="CASCADE"), primary_key=True,
+        ),
+        sa.Column(
+            "tag_id", sa.Integer(),
+            sa.ForeignKey("tag.id", ondelete="CASCADE"), primary_key=True, index=True,
+        ),
+        sa.Column(
+            "confirmed_at", sa.DateTime(timezone=True), nullable=False,
+            server_default=sa.func.now(),
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_table("tag_positive_confirmation")

alembic/versions/0058_tag_head.py

@@ -0,0 +1,95 @@
+"""tag_head + head_training_run: production heads that learn from tags (#114)
+
+The eval (#1130) proved the frozen-embedding + trained-head spine; this lands its
+production form. tag_head stores one logistic-regression head per concept (the
+new suggestion source, replacing Camie + centroid); head_training_run tracks the
+batch that (re)trains them. Adds two head-training tunables to ml_settings.
+
+Revision ID: 0058
+Revises: 0057
+Create Date: 2026-06-28
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+from pgvector.sqlalchemy import Vector
+from sqlalchemy.dialects.postgresql import JSONB
+
+revision: str = "0058"
+down_revision: Union[str, None] = "0057"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+_HEAD_DIM = 1152
+
+
+def upgrade() -> None:
+    op.create_table(
+        "tag_head",
+        sa.Column(
+            "tag_id", sa.Integer(),
+            sa.ForeignKey("tag.id", ondelete="CASCADE"), primary_key=True,
+        ),
+        sa.Column("embedding_version", sa.String(length=128), nullable=False),
+        sa.Column("weights", Vector(_HEAD_DIM), nullable=False),
+        sa.Column("bias", sa.Float(), nullable=False),
+        sa.Column("suggest_threshold", sa.Float(), nullable=False),
+        sa.Column("auto_apply_threshold", sa.Float(), nullable=True),
+        sa.Column("n_pos", sa.Integer(), nullable=False),
+        sa.Column("n_neg", sa.Integer(), nullable=False),
+        sa.Column("ap", sa.Float(), nullable=False),
+        sa.Column("precision_cv", sa.Float(), nullable=False),
+        sa.Column("recall", sa.Float(), nullable=False),
+        sa.Column(
+            "trained_at", sa.DateTime(timezone=True), nullable=False,
+            server_default=sa.func.now(),
+        ),
+        sa.Column("metrics", JSONB(), nullable=True),
+    )
+
+    op.create_table(
+        "head_training_run",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column("params", JSONB(), nullable=False),
+        sa.Column(
+            "status", sa.String(length=16), nullable=False,
+            server_default="running",
+        ),
+        sa.Column(
+            "started_at", sa.DateTime(timezone=True), nullable=False,
+            server_default=sa.func.now(),
+        ),
+        sa.Column("finished_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("n_trained", sa.Integer(), nullable=True),
+        sa.Column("n_skipped", sa.Integer(), nullable=True),
+        sa.Column("error", sa.Text(), nullable=True),
+        sa.Column("last_progress_at", sa.DateTime(timezone=True), nullable=True),
+    )
+    op.create_index(
+        "ix_head_training_run_status", "head_training_run", ["status"],
+    )
+
+    # Head-training tunables on the ml_settings singleton.
+    op.add_column(
+        "ml_settings",
+        sa.Column(
+            "head_min_positives", sa.Integer(), nullable=False,
+            server_default="8",
+        ),
+    )
+    op.add_column(
+        "ml_settings",
+        sa.Column(
+            "head_auto_apply_precision", sa.Float(), nullable=False,
+            server_default="0.97",
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("ml_settings", "head_auto_apply_precision")
+    op.drop_column("ml_settings", "head_min_positives")
+    op.drop_index("ix_head_training_run_status", table_name="head_training_run")
+    op.drop_table("head_training_run")
+    op.drop_table("tag_head")

alembic/versions/0059_head_auto_apply.py

@@ -0,0 +1,70 @@
+"""head_auto_apply_run + earned-auto-apply settings (#114)
+
+A graduated head can apply its tag without a human, gated by a master switch +
+a support floor. head_auto_apply_run tracks each sweep / dry-run preview.
+
+Revision ID: 0059
+Revises: 0058
+Create Date: 2026-06-29
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+from sqlalchemy.dialects.postgresql import JSONB
+
+revision: str = "0059"
+down_revision: Union[str, None] = "0058"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "head_auto_apply_run",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column(
+            "dry_run", sa.Boolean(), nullable=False, server_default=sa.false()
+        ),
+        sa.Column("params", JSONB(), nullable=False),
+        sa.Column(
+            "status", sa.String(length=16), nullable=False,
+            server_default="running",
+        ),
+        sa.Column(
+            "started_at", sa.DateTime(timezone=True), nullable=False,
+            server_default=sa.func.now(),
+        ),
+        sa.Column("finished_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("n_applied", sa.Integer(), nullable=True),
+        sa.Column("report", JSONB(), nullable=True),
+        sa.Column("error", sa.Text(), nullable=True),
+        sa.Column("last_progress_at", sa.DateTime(timezone=True), nullable=True),
+    )
+    op.create_index(
+        "ix_head_auto_apply_run_status", "head_auto_apply_run", ["status"],
+    )
+
+    op.add_column(
+        "ml_settings",
+        sa.Column(
+            "head_auto_apply_enabled", sa.Boolean(), nullable=False,
+            server_default=sa.true(),  # opt-out: on by default (operator-asked)
+        ),
+    )
+    op.add_column(
+        "ml_settings",
+        sa.Column(
+            "head_auto_apply_min_positives", sa.Integer(), nullable=False,
+            server_default="30",
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("ml_settings", "head_auto_apply_min_positives")
+    op.drop_column("ml_settings", "head_auto_apply_enabled")
+    op.drop_index(
+        "ix_head_auto_apply_run_status", table_name="head_auto_apply_run"
+    )
+    op.drop_table("head_auto_apply_run")

alembic/versions/0060_head_metrics.py

@@ -0,0 +1,74 @@
+"""head_metric + head_metrics_snapshot: auto-apply observability (#114)
+
+Running misfire/under-fire counters per concept (captured at correction time,
+since image_tag.source is lost on delete) + a daily per-concept time-series so
+the operator can tune the precision target + support floor from real data.
+
+Revision ID: 0060
+Revises: 0059
+Create Date: 2026-06-29
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0060"
+down_revision: Union[str, None] = "0059"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "head_metric",
+        sa.Column(
+            "tag_id", sa.Integer(),
+            sa.ForeignKey("tag.id", ondelete="CASCADE"), primary_key=True,
+        ),
+        sa.Column("n_misfires", sa.Integer(), nullable=False, server_default="0"),
+        sa.Column("n_underfires", sa.Integer(), nullable=False, server_default="0"),
+        sa.Column(
+            "updated_at", sa.DateTime(timezone=True), nullable=False,
+            server_default=sa.func.now(),
+        ),
+    )
+
+    op.create_table(
+        "head_metrics_snapshot",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column(
+            "tag_id", sa.Integer(),
+            sa.ForeignKey("tag.id", ondelete="CASCADE"),
+        ),
+        sa.Column("name", sa.String(length=255), nullable=False),
+        sa.Column(
+            "snapshot_at", sa.DateTime(timezone=True), nullable=False,
+            server_default=sa.func.now(),
+        ),
+        sa.Column("n_auto_applied", sa.Integer(), nullable=False, server_default="0"),
+        sa.Column("n_misfires", sa.Integer(), nullable=False, server_default="0"),
+        sa.Column("n_underfires", sa.Integer(), nullable=False, server_default="0"),
+        sa.Column("ap", sa.Float(), nullable=True),
+        sa.Column("precision_cv", sa.Float(), nullable=True),
+        sa.Column("recall", sa.Float(), nullable=True),
+        sa.Column("n_pos", sa.Integer(), nullable=True),
+    )
+    op.create_index(
+        "ix_head_metrics_snapshot_tag_id", "head_metrics_snapshot", ["tag_id"],
+    )
+    op.create_index(
+        "ix_head_metrics_snapshot_snapshot_at", "head_metrics_snapshot",
+        ["snapshot_at"],
+    )
+
+
+def downgrade() -> None:
+    op.drop_index(
+        "ix_head_metrics_snapshot_snapshot_at", table_name="head_metrics_snapshot"
+    )
+    op.drop_index(
+        "ix_head_metrics_snapshot_tag_id", table_name="head_metrics_snapshot"
+    )
+    op.drop_table("head_metrics_snapshot")
+    op.drop_table("head_metric")

alembic/versions/0061_image_region.py

@@ -0,0 +1,59 @@
+"""image_region: detected/proposed regions + their crop embeddings (#114)
+
+Storage backbone of the crop pipeline. A region = normalized bbox + the crop's
+embedding (CCIP for face/figure → character id; SigLIP for concept regions →
+head bag-of-embeddings). Also serves as grounded-tag bbox provenance.
+
+Revision ID: 0061
+Revises: 0060
+Create Date: 2026-06-29
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+from pgvector.sqlalchemy import Vector
+
+revision: str = "0061"
+down_revision: Union[str, None] = "0060"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+_CCIP_DIM = 768
+_SIGLIP_DIM = 1152
+
+
+def upgrade() -> None:
+    op.create_table(
+        "image_region",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column(
+            "image_record_id", sa.Integer(),
+            sa.ForeignKey("image_record.id", ondelete="CASCADE"), nullable=False,
+        ),
+        sa.Column("kind", sa.String(length=16), nullable=False),
+        # Video/animated: source frame timestamp (seconds); NULL for stills.
+        sa.Column("frame_time", sa.Float(), nullable=True),
+        sa.Column("rx", sa.Float(), nullable=False),
+        sa.Column("ry", sa.Float(), nullable=False),
+        sa.Column("rw", sa.Float(), nullable=False),
+        sa.Column("rh", sa.Float(), nullable=False),
+        sa.Column("score", sa.Float(), nullable=True),
+        sa.Column("detector_version", sa.String(length=64), nullable=True),
+        sa.Column("crop_version", sa.String(length=64), nullable=True),
+        sa.Column("embedding_version", sa.String(length=128), nullable=True),
+        sa.Column("ccip_embedding", Vector(_CCIP_DIM), nullable=True),
+        sa.Column("siglip_embedding", Vector(_SIGLIP_DIM), nullable=True),
+        sa.Column(
+            "created_at", sa.DateTime(timezone=True), nullable=False,
+            server_default=sa.func.now(),
+        ),
+    )
+    op.create_index(
+        "ix_image_region_image_record_id", "image_region", ["image_record_id"],
+    )
+
+
+def downgrade() -> None:
+    op.drop_index("ix_image_region_image_record_id", table_name="image_region")
+    op.drop_table("image_region")

alembic/versions/0062_gpu_job.py

@@ -0,0 +1,55 @@
+"""gpu_job: the HTTP-leased GPU work queue for the desktop agent (#114)
+
+The agent stays HTTP-only — the server enqueues per-(image, task) jobs here and
+the agent leases/submits over the web API; Redis/Postgres stay private.
+
+Revision ID: 0062
+Revises: 0061
+Create Date: 2026-06-29
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0062"
+down_revision: Union[str, None] = "0061"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "gpu_job",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column(
+            "image_record_id", sa.Integer(),
+            sa.ForeignKey("image_record.id", ondelete="CASCADE"), nullable=False,
+        ),
+        sa.Column("task", sa.String(length=32), nullable=False),
+        sa.Column(
+            "status", sa.String(length=16), nullable=False,
+            server_default="pending",
+        ),
+        sa.Column("lease_token", sa.String(length=64), nullable=True),
+        sa.Column("leased_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("lease_expires_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("attempts", sa.Integer(), nullable=False, server_default="0"),
+        sa.Column("error", sa.Text(), nullable=True),
+        sa.Column(
+            "created_at", sa.DateTime(timezone=True), nullable=False,
+            server_default=sa.func.now(),
+        ),
+        sa.Column(
+            "updated_at", sa.DateTime(timezone=True), nullable=False,
+            server_default=sa.func.now(),
+        ),
+    )
+    op.create_index("ix_gpu_job_image_record_id", "gpu_job", ["image_record_id"])
+    op.create_index("ix_gpu_job_status", "gpu_job", ["status"])
+
+
+def downgrade() -> None:
+    op.drop_index("ix_gpu_job_status", table_name="gpu_job")
+    op.drop_index("ix_gpu_job_image_record_id", table_name="gpu_job")
+    op.drop_table("gpu_job")

alembic/versions/0063_ccip_match_threshold.py

@@ -0,0 +1,33 @@
+"""ml_settings.ccip_match_threshold — tunable CCIP character-match cut (#114)
+
+The v1 matcher used a flat 0.75 cosine; live data showed that over-fires (a
+high-reference character matched a scatter of images). 0.85 keeps the confident
+single-character matches and drops the noise. Tunable from the GPU agent card.
+
+Revision ID: 0063
+Revises: 0062
+Create Date: 2026-06-29
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0063"
+down_revision: Union[str, None] = "0062"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "ml_settings",
+        sa.Column(
+            "ccip_match_threshold", sa.Float(), nullable=False,
+            server_default="0.85",
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("ml_settings", "ccip_match_threshold")

alembic/versions/0064_ccip_auto_apply.py

@@ -0,0 +1,42 @@
+"""ml_settings: CCIP auto-apply switch + threshold (#114)
+
+Confident CCIP character matches auto-tag (source='ccip_auto') on a daily sweep,
+so identity tags keep flowing without pressing a button. ON by default (opt-out,
+like head auto-apply); the high threshold (0.92, above the 0.85 suggest cut) +
+single-character references keep it safe, and every auto-tag is reversible.
+
+Revision ID: 0064
+Revises: 0063
+Create Date: 2026-06-30
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0064"
+down_revision: Union[str, None] = "0063"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "ml_settings",
+        sa.Column(
+            "ccip_auto_apply_enabled", sa.Boolean(), nullable=False,
+            server_default=sa.true(),
+        ),
+    )
+    op.add_column(
+        "ml_settings",
+        sa.Column(
+            "ccip_auto_apply_threshold", sa.Float(), nullable=False,
+            server_default="0.92",
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("ml_settings", "ccip_auto_apply_threshold")
+    op.drop_column("ml_settings", "ccip_auto_apply_enabled")

alembic/versions/0065_embedder_model_name.py

@@ -0,0 +1,35 @@
+"""ml_settings: embedder_model_name (#1190 operator model swap)
+
+The embedder MODEL VERSION was already a setting (and stamps image_record.
+siglip_model_version); the HF model NAME was env-only, so an operator couldn't
+actually point the pipeline at a different embedder. Storing the name as a
+setting makes the model an operator choice: set name + version → re-embed (the
+GPU agent) → retrain heads. Default = the current SigLIP so400m.
+
+Revision ID: 0065
+Revises: 0064
+Create Date: 2026-06-30
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0065"
+down_revision: Union[str, None] = "0064"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "ml_settings",
+        sa.Column(
+            "embedder_model_name", sa.String(length=128), nullable=False,
+            server_default="google/siglip-so400m-patch14-384",
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("ml_settings", "embedder_model_name")

alembic/versions/0066_drop_centroids.py

@@ -0,0 +1,57 @@
+"""drop the dead per-tag centroid subsystem (#1189 cleanup)
+
+The v2 pivot replaced per-tag SigLIP centroids with learned heads + CCIP.
+Nothing read the centroids anymore — they were recomputed (on merge + a daily
+beat) but never consumed for suggestions or auto-apply. Remove the storage +
+its two now-unused settings columns. (The recompute tasks, beat, endpoint,
+service, and UI card are removed in the same change.)
+
+Revision ID: 0066
+Revises: 0065
+Create Date: 2026-06-30
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0066"
+down_revision: Union[str, None] = "0065"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.drop_table("tag_reference_embedding")
+    op.drop_column("ml_settings", "centroid_similarity_threshold")
+    op.drop_column("ml_settings", "min_reference_images")
+
+
+def downgrade() -> None:
+    op.add_column(
+        "ml_settings",
+        sa.Column(
+            "min_reference_images", sa.Integer(), nullable=False,
+            server_default="5",
+        ),
+    )
+    op.add_column(
+        "ml_settings",
+        sa.Column(
+            "centroid_similarity_threshold", sa.Float(), nullable=False,
+            server_default="0.55",
+        ),
+    )
+    op.create_table(
+        "tag_reference_embedding",
+        sa.Column("tag_id", sa.Integer(), nullable=False),
+        sa.Column("embedding", sa.LargeBinary(), nullable=False),
+        sa.Column("reference_count", sa.Integer(), nullable=False),
+        sa.Column("model_version", sa.String(length=128), nullable=False),
+        sa.Column(
+            "updated_at", sa.DateTime(timezone=True),
+            server_default=sa.func.now(), nullable=False,
+        ),
+        sa.ForeignKeyConstraint(["tag_id"], ["tag.id"], ondelete="CASCADE"),
+        sa.PrimaryKeyConstraint("tag_id"),
+    )

alembic/versions/0067_retire_camie_allowlist.py

@@ -0,0 +1,66 @@
+"""retire the Camie tagger + allowlist bulk-apply (#1189)
+
+The v2 pivot made heads + CCIP the tag source and head auto-apply the earned
+propagation. The Camie tagger ran only to feed the allowlist bulk-apply (its
+predictions had no other consumer), and the allowlist was a second, un-earned
+auto-apply path parallel to heads. Both are retired — drop their storage.
+
+(image_prediction = Camie's per-image predictions; tag_allowlist = the bulk-
+apply allowlist. Nothing references INTO these tables, so the drop is clean.)
+
+Revision ID: 0067
+Revises: 0066
+Create Date: 2026-06-30
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0067"
+down_revision: Union[str, None] = "0066"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.drop_table("image_prediction")
+    op.drop_table("tag_allowlist")
+
+
+def downgrade() -> None:
+    op.create_table(
+        "tag_allowlist",
+        sa.Column("tag_id", sa.Integer(), nullable=False),
+        sa.Column(
+            "min_confidence", sa.Float(), nullable=False, server_default="0.9"
+        ),
+        sa.Column(
+            "created_at", sa.DateTime(timezone=True),
+            server_default=sa.func.now(), nullable=False,
+        ),
+        sa.ForeignKeyConstraint(["tag_id"], ["tag.id"], ondelete="CASCADE"),
+        sa.PrimaryKeyConstraint("tag_id"),
+        sa.CheckConstraint(
+            "min_confidence >= 0 AND min_confidence <= 1",
+            name="ck_tag_allowlist_confidence_range",
+        ),
+    )
+    op.create_table(
+        "image_prediction",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column("image_record_id", sa.Integer(), nullable=False),
+        sa.Column("raw_name", sa.String(length=255), nullable=False),
+        sa.Column("category", sa.String(length=32), nullable=False),
+        sa.Column("score", sa.Float(), nullable=False),
+        sa.ForeignKeyConstraint(
+            ["image_record_id"], ["image_record.id"], ondelete="CASCADE"
+        ),
+    )
+    op.create_index(
+        "ix_image_prediction_image", "image_prediction", ["image_record_id"]
+    )
+    op.create_index(
+        "ix_image_prediction_name_score", "image_prediction",
+        ["raw_name", "score"],
+    )

alembic/versions/0068_drop_dead_tagger_settings.py

@@ -0,0 +1,80 @@
+"""drop dead tagger/suggestion settings + columns left after Camie retirement (#1199)
+
+Hygiene follow-up to #1189. These were left inert to bound that change; nothing
+reads them now:
+- ml_settings: tagger_store_floor + tagger_model_version (only the deleted Camie
+  tagger used them), suggestion_threshold_character/general (already dead pre-
+  retirement — scoring uses per-head thresholds), video_min_tag_frames (only the
+  deleted video-prediction aggregator used it).
+- image_record: tagger_model_version (no writer now), centroid_scores (long-dead
+  JSON cache, no reader).
+
+Revision ID: 0068
+Revises: 0067
+Create Date: 2026-06-30
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0068"
+down_revision: Union[str, None] = "0067"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.drop_column("ml_settings", "suggestion_threshold_character")
+    op.drop_column("ml_settings", "suggestion_threshold_general")
+    op.drop_column("ml_settings", "tagger_store_floor")
+    op.drop_column("ml_settings", "video_min_tag_frames")
+    op.drop_column("ml_settings", "tagger_model_version")
+    op.drop_column("image_record", "tagger_model_version")
+    op.drop_column("image_record", "centroid_scores")
+
+
+def downgrade() -> None:
+    op.add_column(
+        "image_record",
+        sa.Column("centroid_scores", sa.JSON(), nullable=True),
+    )
+    op.add_column(
+        "image_record",
+        sa.Column("tagger_model_version", sa.String(length=128), nullable=True),
+    )
+    op.add_column(
+        "ml_settings",
+        sa.Column(
+            "tagger_model_version", sa.String(length=128), nullable=False,
+            server_default="camie-tagger-v2",
+        ),
+    )
+    op.add_column(
+        "ml_settings",
+        sa.Column(
+            "video_min_tag_frames", sa.Integer(), nullable=False,
+            server_default="3",
+        ),
+    )
+    op.add_column(
+        "ml_settings",
+        sa.Column(
+            "tagger_store_floor", sa.Float(), nullable=False,
+            server_default="0.7",
+        ),
+    )
+    op.add_column(
+        "ml_settings",
+        sa.Column(
+            "suggestion_threshold_general", sa.Float(), nullable=False,
+            server_default="0.7",
+        ),
+    )
+    op.add_column(
+        "ml_settings",
+        sa.Column(
+            "suggestion_threshold_character", sa.Float(), nullable=False,
+            server_default="0.7",
+        ),
+    )

alembic/versions/0069_default_siglip2.py

@@ -0,0 +1,51 @@
+"""default the embedder to SigLIP 2 — for FRESH installs only (#1203)
+
+Make SigLIP 2 (so400m, 512px; a 1152-d drop-in) the default embedder. New
+installs start on it. An EXISTING library is NOT touched: flipping its stored
+embedder version would mark every embedding stale (the scorer is version-gated)
+and kill suggestions until a full re-embed+retrain — so an existing instance
+switches deliberately via Settings → GPU agent → Embedding model → Re-embed →
+Retrain. We detect "fresh" by the absence of any embedded image.
+
+Revision ID: 0069
+Revises: 0068
+Create Date: 2026-06-30
+"""
+from typing import Sequence, Union
+
+from alembic import op
+
+revision: str = "0069"
+down_revision: Union[str, None] = "0068"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+_NEW_NAME = "google/siglip2-so400m-patch16-512"
+_NEW_VERSION = "siglip2-so400m-patch16-512"
+_OLD_NAME = "google/siglip-so400m-patch14-384"
+_OLD_VERSION = "siglip-so400m-patch14-384"
+
+
+def upgrade() -> None:
+    # Fresh install (nothing embedded yet) → adopt SigLIP 2.
+    op.execute(
+        f"""
+        UPDATE ml_settings SET
+            embedder_model_name = '{_NEW_NAME}',
+            embedder_model_version = '{_NEW_VERSION}'
+        WHERE NOT EXISTS (
+            SELECT 1 FROM image_record WHERE siglip_embedding IS NOT NULL
+        )
+        """
+    )
+    op.alter_column("ml_settings", "embedder_model_name", server_default=_NEW_NAME)
+    op.alter_column(
+        "ml_settings", "embedder_model_version", server_default=_NEW_VERSION
+    )
+
+
+def downgrade() -> None:
+    op.alter_column("ml_settings", "embedder_model_name", server_default=_OLD_NAME)
+    op.alter_column(
+        "ml_settings", "embedder_model_version", server_default=_OLD_VERSION
+    )

alembic/versions/0070_gpu_job_lease_indexes.py

@@ -0,0 +1,44 @@
+"""partial indexes so GPU-job leasing stays O(batch), not O(completed)
+
+The lease claims the lowest-id pending (or expired-leased) jobs. With only a
+plain `status` index, `... ORDER BY id LIMIT n` walked the primary-key index from
+the start, skipping the entire prefix of already-done/error rows before reaching
+pending ones — so leasing slowed to a crawl as `done` piled up (the whole reason
+throughput fell off a cliff mid-run and /status stalled). Two partial indexes fix
+it: the pending one is id-ordered so the hot path reads just the first n entries,
+and the leased-expiry one keeps the crash-recovery reclaim + the orphan sweep
+cheap. They cover only the small live slice of the table, so they stay tiny even
+as the done/error history grows to millions.
+
+Revision ID: 0070
+Revises: 0069
+Create Date: 2026-06-30
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0070"
+down_revision: Union[str, None] = "0069"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # Hot path: lowest-id pending jobs. Index on id, restricted to pending, so
+    # `WHERE status='pending' ORDER BY id LIMIT n` is a short index-order scan.
+    op.create_index(
+        "ix_gpu_job_pending", "gpu_job", ["id"],
+        postgresql_where=sa.text("status = 'pending'"),
+    )
+    # Crash-recovery: expired leases, for the lease backstop + recover_orphaned.
+    op.create_index(
+        "ix_gpu_job_leased_expires", "gpu_job", ["lease_expires_at"],
+        postgresql_where=sa.text("status = 'leased'"),
+    )
+
+
+def downgrade() -> None:
+    op.drop_index("ix_gpu_job_leased_expires", table_name="gpu_job")
+    op.drop_index("ix_gpu_job_pending", table_name="gpu_job")

alembic/versions/0071_image_record_earliest_post_date.py

@@ -0,0 +1,80 @@
+"""image_record.earliest_post_date: original-publish gallery sort key + index
+
+Revision ID: 0071
+Revises: 0070
+Create Date: 2026-07-01
+
+effective_date (0035) keys off the PRIMARY post — which is often the repost /
+download the file actually came from — and falls back to created_at, so the
+gallery's default order surfaces download dates rather than when content was
+first posted (operator-flagged 2026-07-01). Materialize a second sort key,
+earliest_post_date = MIN(post_date) across ALL of an image's provenance posts
+(every post it appears in), falling back to created_at only when no linked post
+carries a date. Indexed (DESC, id DESC) so the "post date" gallery sort is an
+index range scan just like effective_date.
+
+Backfill mirrors 0035: created_at baseline, then override with the MIN over
+image_provenance ⋈ post. New rows get the created_at-equivalent server default;
+services/importer.py recomputes it whenever a dated post is linked.
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0071"
+down_revision: Union[str, None] = "0070"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    # Add nullable first so the backfill can populate before NOT NULL.
+    op.add_column(
+        "image_record",
+        sa.Column("earliest_post_date", sa.DateTime(timezone=True), nullable=True),
+    )
+    # Baseline: download date. Set-based (no per-row binds) → immune to the
+    # 65535 bind-parameter ceiling regardless of library size.
+    op.execute(
+        """
+        UPDATE image_record
+        SET earliest_post_date = created_at
+        """
+    )
+    # Override with the earliest post_date across EVERY post the image appears
+    # in (image_provenance is the many-to-many edge; ignore posts with no date).
+    op.execute(
+        """
+        UPDATE image_record AS ir
+        SET earliest_post_date = sub.min_date
+        FROM (
+            SELECT ip.image_record_id AS iid, MIN(p.post_date) AS min_date
+            FROM image_provenance AS ip
+            JOIN post AS p ON p.id = ip.post_id
+            WHERE p.post_date IS NOT NULL
+            GROUP BY ip.image_record_id
+        ) AS sub
+        WHERE ir.id = sub.iid
+        """
+    )
+    op.alter_column(
+        "image_record",
+        "earliest_post_date",
+        nullable=False,
+        server_default=sa.text("now()"),
+    )
+    # DESC/DESC matches the gallery's ORDER BY earliest_post_date DESC, id DESC
+    # so the "post date" scroll is a forward index scan; raw SQL because
+    # alembic's column list doesn't express per-column DESC cleanly.
+    op.execute(
+        "CREATE INDEX ix_image_record_earliest_post_date "
+        "ON image_record (earliest_post_date DESC, id DESC)"
+    )
+
+
+def downgrade() -> None:
+    op.drop_index(
+        "ix_image_record_earliest_post_date", table_name="image_record"
+    )
+    op.drop_column("image_record", "earliest_post_date")

alembic/versions/0072_gpu_job_triage_status.py

@@ -0,0 +1,32 @@
+"""gpu_job.triage_status — the probe's verdict on an errored job's FILE
+
+Failure triage (#125): a periodic sweep probes each errored image's file
+(sha256 + decode, verify_integrity's machinery) exactly once and stores the
+verdict here — 'defect' (the file is bad: recovery material, excluded from
+/retry_errors) or 'file_ok' (failure was operational, safe to retry). NULL
+means not yet probed; selecting on NULL is what makes the sweep resumable.
+No index: the errored slice the sweep scans is tiny by design (tombstones).
+
+Revision ID: 0072
+Revises: 0071
+Create Date: 2026-07-02
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0072"
+down_revision: Union[str, None] = "0071"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "gpu_job", sa.Column("triage_status", sa.String(16), nullable=True)
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("gpu_job", "triage_status")

alembic/versions/0073_drop_tag_eval_run.py

@@ -0,0 +1,46 @@
+"""drop tag_eval_run — the head-vs-centroid eval harness is retired
+
+The eval (#1130) existed to prove the heads tagging spine on the operator's own
+data. It did; the operator accepted the system and retired the harness
+(2026-07-02) — card, API, task, model and this table all go. The eval's data
+loaders + metric helpers live on in services/ml/training_data.py, where the
+production heads trainer uses them nightly.
+
+Revision ID: 0073
+Revises: 0072
+Create Date: 2026-07-02
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+from sqlalchemy.dialects import postgresql
+
+revision: str = "0073"
+down_revision: Union[str, None] = "0072"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.drop_index("ix_tag_eval_run_status", table_name="tag_eval_run")
+    op.drop_table("tag_eval_run")
+
+
+def downgrade() -> None:
+    # Recreates the shape from 0056 (data is not restorable).
+    op.create_table(
+        "tag_eval_run",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column("params", postgresql.JSONB(), nullable=False),
+        sa.Column("status", sa.String(length=16), nullable=False,
+                  server_default="running"),
+        sa.Column("started_at", sa.DateTime(timezone=True), nullable=False,
+                  server_default=sa.func.now()),
+        sa.Column("finished_at", sa.DateTime(timezone=True), nullable=True),
+        sa.Column("report", postgresql.JSONB(), nullable=True),
+        sa.Column("error", sa.Text(), nullable=True),
+        sa.Column("last_progress_at", sa.DateTime(timezone=True),
+                  nullable=True),
+    )
+    op.create_index("ix_tag_eval_run_status", "tag_eval_run", ["status"])

alembic/versions/0074_ml_settings_cpu_embed_enabled.py

@@ -0,0 +1,35 @@
+"""ml_settings.cpu_embed_enabled — the CPU embed fallback becomes a switch
+
+B3 (operator 2026-07-02): the ml-worker's only processing role is the CPU
+whole-image embed for stacks without a GPU agent. ON by default (a fresh
+install works agent-less); agent-equipped stacks that drop the ml-worker
+container turn it off so import hooks stop queueing embed work into a queue
+nothing consumes — the daily GPU 'embed' backfill covers those images.
+
+Revision ID: 0074
+Revises: 0073
+Create Date: 2026-07-02
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0074"
+down_revision: Union[str, None] = "0073"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "ml_settings",
+        sa.Column(
+            "cpu_embed_enabled", sa.Boolean(), nullable=False,
+            server_default=sa.true(),
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("ml_settings", "cpu_embed_enabled")

alembic/versions/0075_tag_is_system.py

@@ -0,0 +1,60 @@
+"""tag.is_system + seed the three hygiene system tags
+
+Training hygiene (operator 2026-07-03, milestone #128): rough WIPs tagged as a
+character poison that character's head and CCIP references; banners/editor
+screenshots pollute whole-image similarity. The fix keys on SYSTEM tags the
+product ships — not operator configuration — so the seed lives here.
+
+Seeding ADOPTS an existing same-(name, kind=general) tag (case-insensitive,
+matching TagService.rename's collision stance) instead of inserting a
+duplicate, so an operator who already tagged `wip` keeps their applications.
+
+Revision ID: 0075
+Revises: 0074
+Create Date: 2026-07-03
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0075"
+down_revision: Union[str, None] = "0074"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+SYSTEM_TAG_NAMES = ("wip", "banner", "editor screenshot")
+
+
+def upgrade() -> None:
+    op.add_column(
+        "tag",
+        sa.Column(
+            "is_system", sa.Boolean(), nullable=False,
+            server_default=sa.false(),
+        ),
+    )
+    conn = op.get_bind()
+    for name in SYSTEM_TAG_NAMES:
+        adopted = conn.execute(
+            sa.text(
+                "UPDATE tag SET is_system = true "
+                "WHERE lower(name) = lower(:name) AND kind = 'general'"
+            ),
+            {"name": name},
+        )
+        if adopted.rowcount == 0:
+            conn.execute(
+                sa.text(
+                    "INSERT INTO tag (name, kind, is_system) "
+                    "VALUES (:name, 'general', true)"
+                ),
+                {"name": name},
+            )
+
+
+def downgrade() -> None:
+    # The seeded rows survive as ordinary general tags — dropping the flag is
+    # enough to disarm the mechanism, and deleting rows would orphan any
+    # operator applications made while the flag existed.
+    op.drop_column("tag", "is_system")

alembic/versions/0076_pixiv_ledgers.py

@@ -0,0 +1,82 @@
+"""pixiv_seen_media + pixiv_failed_media: per-source ledgers
+
+Revision ID: 0076
+Revises: 0075
+Create Date: 2026-07-03
+
+Pixiv native ingester (milestone #129, gallery-dl → native-core migration).
+Mirrors the Patreon (0037/0038) and SubscribeStar (0054) ledger tables: a
+seen-ledger so routine walks skip already-ingested media (recovery bypasses
+it) and a dead-letter ledger so persistently-failing media stops re-burning
+backfill chunks. Pixiv URLs carry no content hash, so `filehash` is always the
+synthesized ``<illust_id>:p<num>`` / ``<illust_id>:ugoira`` key — String(128)
+matches the siblings. UNIQUE (source_id, filehash) is the upsert key on each.
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0076"
+down_revision: Union[str, None] = "0075"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.create_table(
+        "pixiv_seen_media",
+        sa.Column("id", sa.Integer, primary_key=True),
+        sa.Column(
+            "source_id",
+            sa.Integer,
+            sa.ForeignKey("source.id", ondelete="CASCADE"),
+            nullable=False,
+            index=True,
+        ),
+        sa.Column("filehash", sa.String(128), nullable=False),
+        sa.Column("post_id", sa.String(64), nullable=True),
+        sa.Column(
+            "seen_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.text("NOW()"),
+        ),
+        sa.UniqueConstraint(
+            "source_id", "filehash", name="uq_pixiv_seen_media_source_id"
+        ),
+    )
+    op.create_table(
+        "pixiv_failed_media",
+        sa.Column("id", sa.Integer, primary_key=True),
+        sa.Column(
+            "source_id",
+            sa.Integer,
+            sa.ForeignKey("source.id", ondelete="CASCADE"),
+            nullable=False,
+            index=True,
+        ),
+        sa.Column("filehash", sa.String(128), nullable=False),
+        sa.Column("attempts", sa.Integer, nullable=False, server_default="1"),
+        sa.Column("last_error", sa.Text, nullable=True),
+        sa.Column(
+            "first_failed_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.text("NOW()"),
+        ),
+        sa.Column(
+            "last_failed_at",
+            sa.DateTime(timezone=True),
+            nullable=False,
+            server_default=sa.text("NOW()"),
+        ),
+        sa.UniqueConstraint(
+            "source_id", "filehash", name="uq_pixiv_failed_media_source_id"
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_table("pixiv_failed_media")
+    op.drop_table("pixiv_seen_media")

alembic/versions/0077_artist_name_not_unique.py

@@ -0,0 +1,32 @@
+"""drop uq_artist_name — decouple display name from identity/storage
+
+Revision ID: 0077
+Revises: 0076
+Create Date: 2026-07-04
+
+Artist model fragility fix (milestone #130). One `slug` column was doing
+identity + storage-path + display, and BOTH `name` and `slug` were UNIQUE, so
+the display name couldn't be edited freely and two genuinely different creators
+collided. Decouple: `slug` stays the immutable, unique storage/identity key (the
+on-disk path component — untouched here); `name` becomes freely editable, NON-
+unique display text. This migration only drops the `uq_artist_name` constraint;
+no data moves and no path changes.
+"""
+from typing import Sequence, Union
+
+from alembic import op
+
+revision: str = "0077"
+down_revision: Union[str, None] = "0076"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.drop_constraint("uq_artist_name", "artist", type_="unique")
+
+
+def downgrade() -> None:
+    # Re-adding the UNIQUE would fail if duplicate names now exist; callers that
+    # need to reverse this must dedupe names first.
+    op.create_unique_constraint("uq_artist_name", "artist", ["name"])

alembic/versions/0078_ml_settings_detectors.py

@@ -0,0 +1,83 @@
+"""ml_settings crop-proposer / detector config (#134)
+
+Move the WHERE-to-crop detector config (per-proposer enable + weights + conf,
+plus caps + dedupe IoU) into the DB so it's UI-tunable and announced to the GPU
+agent in the lease (like the embedder model) — no restart, agent env is now
+bootstrap-only. All server_defaults are the working values so existing rows +
+fresh installs crop out-of-the-box with all three proposers ON.
+
+Revision ID: 0078
+Revises: 0077
+Create Date: 2026-07-05
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0078"
+down_revision: Union[str, None] = "0077"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+_ANATOMY_DEFAULT = (
+    "https://github.com/aperveyev/booru_yolo/raw/main/models/yolov11m_aa22.pt"
+)
+_PANEL_DEFAULT = "mosesb/best-comic-panel-detection::best.pt"
+
+
+def upgrade() -> None:
+    op.add_column("ml_settings", sa.Column(
+        "detector_person_enabled", sa.Boolean(), nullable=False,
+        server_default=sa.true()))
+    op.add_column("ml_settings", sa.Column(
+        "detector_person_weights", sa.String(512), nullable=False,
+        server_default="yolo11n.pt"))
+    op.add_column("ml_settings", sa.Column(
+        "detector_person_conf", sa.Float(), nullable=False,
+        server_default=sa.text("0.35")))
+    op.add_column("ml_settings", sa.Column(
+        "detector_anatomy_enabled", sa.Boolean(), nullable=False,
+        server_default=sa.true()))
+    op.add_column("ml_settings", sa.Column(
+        "detector_anatomy_weights", sa.String(512), nullable=False,
+        server_default=_ANATOMY_DEFAULT))
+    op.add_column("ml_settings", sa.Column(
+        "detector_anatomy_conf", sa.Float(), nullable=False,
+        server_default=sa.text("0.30")))
+    op.add_column("ml_settings", sa.Column(
+        "detector_panel_enabled", sa.Boolean(), nullable=False,
+        server_default=sa.true()))
+    op.add_column("ml_settings", sa.Column(
+        "detector_panel_weights", sa.String(512), nullable=False,
+        server_default=_PANEL_DEFAULT))
+    op.add_column("ml_settings", sa.Column(
+        "detector_panel_conf", sa.Float(), nullable=False,
+        server_default=sa.text("0.30")))
+    op.add_column("ml_settings", sa.Column(
+        "detector_max_figures", sa.Integer(), nullable=False,
+        server_default=sa.text("8")))
+    op.add_column("ml_settings", sa.Column(
+        "detector_max_components", sa.Integer(), nullable=False,
+        server_default=sa.text("8")))
+    op.add_column("ml_settings", sa.Column(
+        "detector_max_panels", sa.Integer(), nullable=False,
+        server_default=sa.text("8")))
+    op.add_column("ml_settings", sa.Column(
+        "detector_max_regions", sa.Integer(), nullable=False,
+        server_default=sa.text("128")))
+    op.add_column("ml_settings", sa.Column(
+        "detector_dedupe_iou", sa.Float(), nullable=False,
+        server_default=sa.text("0.85")))
+
+
+def downgrade() -> None:
+    for col in (
+        "detector_person_enabled", "detector_person_weights", "detector_person_conf",
+        "detector_anatomy_enabled", "detector_anatomy_weights", "detector_anatomy_conf",
+        "detector_panel_enabled", "detector_panel_weights", "detector_panel_conf",
+        "detector_max_figures", "detector_max_components", "detector_max_panels",
+        "detector_max_regions", "detector_dedupe_iou",
+    ):
+        op.drop_column("ml_settings", col)

alembic/versions/0079_character_prototypes.py

@@ -0,0 +1,77 @@
+"""character prototype store (#1317) — precomputed, incremental CCIP references
+
+New tables character_prototype + ccip_prototype_state, plus MLSettings columns
+ccip_ref_signature (cheap global change gate) + ccip_prototype_cap (per-character
+reference cap). The reference set the CCIP matcher uses becomes a precomputed
+artifact refreshed incrementally off the request path. See milestone 138 /
+backend.app.services.ml.character_prototypes.
+
+Revision ID: 0079
+Revises: 0078
+Create Date: 2026-07-06
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+from pgvector.sqlalchemy import Vector
+
+revision: str = "0079"
+down_revision: Union[str, None] = "0078"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+# Matches models.image_region.CCIP_DIM (the CCIP figure-embedding width).
+_CCIP_DIM = 768
+
+
+def upgrade() -> None:
+    op.create_table(
+        "character_prototype",
+        sa.Column("id", sa.Integer(), primary_key=True),
+        sa.Column(
+            "tag_id", sa.Integer(),
+            sa.ForeignKey("tag.id", ondelete="CASCADE"), nullable=False,
+        ),
+        sa.Column("ccip_embedding", Vector(_CCIP_DIM), nullable=False),
+        sa.Column(
+            "region_id", sa.Integer(),
+            sa.ForeignKey("image_region.id", ondelete="SET NULL"), nullable=True,
+        ),
+    )
+    op.create_index(
+        "ix_character_prototype_tag_id", "character_prototype", ["tag_id"]
+    )
+    op.create_table(
+        "ccip_prototype_state",
+        sa.Column(
+            "tag_id", sa.Integer(),
+            sa.ForeignKey("tag.id", ondelete="CASCADE"), primary_key=True,
+        ),
+        sa.Column("fingerprint", sa.String(64), nullable=False),
+        sa.Column(
+            "updated_at", sa.DateTime(timezone=True), nullable=False,
+            server_default=sa.func.now(),
+        ),
+    )
+    op.add_column(
+        "ml_settings",
+        sa.Column("ccip_ref_signature", sa.String(128), nullable=True),
+    )
+    op.add_column(
+        "ml_settings",
+        sa.Column(
+            "ccip_prototype_cap", sa.Integer(), nullable=False,
+            server_default=sa.text("64"),
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("ml_settings", "ccip_prototype_cap")
+    op.drop_column("ml_settings", "ccip_ref_signature")
+    op.drop_table("ccip_prototype_state")
+    op.drop_index(
+        "ix_character_prototype_tag_id", table_name="character_prototype"
+    )
+    op.drop_table("character_prototype")

alembic/versions/0080_tag_head_train_fingerprint.py

@@ -0,0 +1,31 @@
+"""tag_head.train_fingerprint (#1317 phase 2) — incremental head retraining
+
+A per-head training-data fingerprint (positive + rejection count/latest-timestamp)
+so a manual Retrain refits only the tags whose data changed; the nightly run
+ignores it (full reconcile). Nullable — a NULL fingerprint (existing heads) forces
+a refit on the first incremental run, then it's stamped.
+
+Revision ID: 0080
+Revises: 0079
+Create Date: 2026-07-06
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0080"
+down_revision: Union[str, None] = "0079"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "tag_head",
+        sa.Column("train_fingerprint", sa.String(128), nullable=True),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("tag_head", "train_fingerprint")

alembic/versions/0081_stricter_auto_apply_defaults.py

@@ -0,0 +1,43 @@
+"""stricter auto-apply defaults (milestone 139) — cut auto-apply misfires
+
+head_auto_apply_min_positives 30→50 and ccip_auto_apply_threshold 0.92→0.95
+(operator-asked 2026-07-06). The head graduation precision bar stays 0.97 — the
+operator confirmed the general-tag confidence was already well tuned; only the
+support floor + the CCIP match confidence are raised. The model defaults change
+for fresh installs; here we bump the existing singleton row IFF it is still at
+the previous default, so a deliberate operator change is NOT clobbered.
+
+Revision ID: 0081
+Revises: 0080
+Create Date: 2026-07-06
+"""
+from typing import Sequence, Union
+
+from alembic import op
+
+revision: str = "0081"
+down_revision: Union[str, None] = "0080"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.execute(
+        "UPDATE ml_settings SET head_auto_apply_min_positives = 50 "
+        "WHERE head_auto_apply_min_positives = 30"
+    )
+    op.execute(
+        "UPDATE ml_settings SET ccip_auto_apply_threshold = 0.95 "
+        "WHERE ccip_auto_apply_threshold = 0.92"
+    )
+
+
+def downgrade() -> None:
+    op.execute(
+        "UPDATE ml_settings SET head_auto_apply_min_positives = 30 "
+        "WHERE head_auto_apply_min_positives = 50"
+    )
+    op.execute(
+        "UPDATE ml_settings SET ccip_auto_apply_threshold = 0.92 "
+        "WHERE ccip_auto_apply_threshold = 0.95"
+    )

alembic/versions/0082_presentation_auto_hide.py

@@ -0,0 +1,85 @@
+"""presentation-chrome auto-hide (#141) — settings knobs + review table
+
+MLSettings gains presentation_auto_apply_enabled / _threshold and
+presentation_conflict_threshold: banner + editor-screenshot auto-hide on the
+sweep with a FLAT threshold (decoupled from content-head graduation), and a
+conflict threshold that flags an auto-hide that "also looks like content".
+
+New table presentation_review records an auto-hidden chrome image that also
+scored high on a content head, surfaced in the Hidden view for a keep-hidden /
+un-hide decision. Resolved rows are pruned by retention.
+
+Revision ID: 0082
+Revises: 0081
+Create Date: 2026-07-07
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0082"
+down_revision: Union[str, None] = "0081"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "ml_settings",
+        sa.Column(
+            "presentation_auto_apply_enabled", sa.Boolean(), nullable=False,
+            server_default=sa.text("true"),
+        ),
+    )
+    op.add_column(
+        "ml_settings",
+        sa.Column(
+            "presentation_auto_apply_threshold", sa.Float(), nullable=False,
+            server_default=sa.text("0.90"),
+        ),
+    )
+    op.add_column(
+        "ml_settings",
+        sa.Column(
+            "presentation_conflict_threshold", sa.Float(), nullable=False,
+            server_default=sa.text("0.50"),
+        ),
+    )
+    op.create_table(
+        "presentation_review",
+        sa.Column(
+            "image_record_id", sa.Integer(),
+            sa.ForeignKey("image_record.id", ondelete="CASCADE"),
+            primary_key=True,
+        ),
+        sa.Column(
+            "tag_id", sa.Integer(),
+            sa.ForeignKey("tag.id", ondelete="CASCADE"), primary_key=True,
+        ),
+        sa.Column(
+            "conflict_tag_id", sa.Integer(),
+            sa.ForeignKey("tag.id", ondelete="SET NULL"), nullable=True,
+        ),
+        sa.Column("conflict_score", sa.Float(), nullable=False),
+        sa.Column(
+            "created_at", sa.DateTime(timezone=True), nullable=False,
+            server_default=sa.func.now(),
+        ),
+        sa.Column("resolved_at", sa.DateTime(timezone=True), nullable=True),
+    )
+    # The review list queries the unresolved flags (resolved_at IS NULL).
+    op.create_index(
+        "ix_presentation_review_resolved_at", "presentation_review",
+        ["resolved_at"],
+    )
+
+
+def downgrade() -> None:
+    op.drop_index(
+        "ix_presentation_review_resolved_at", table_name="presentation_review"
+    )
+    op.drop_table("presentation_review")
+    op.drop_column("ml_settings", "presentation_conflict_threshold")
+    op.drop_column("ml_settings", "presentation_auto_apply_threshold")
+    op.drop_column("ml_settings", "presentation_auto_apply_enabled")

alembic/versions/0083_post_translation.py

@@ -0,0 +1,73 @@
+"""post-text translation via Interpreter (milestone 143) — Post columns + settings
+
+Post gains the translated title/description + the detected source language,
+Interpreter engine_version (cache key), and translated_at — filled by the
+translate sweep. ImportSettings gains translation_enabled (OFF by default),
+interpreter_base_url (EMPTY — the operator sets their own, behind a reverse
+proxy), and translation_target_lang (en).
+
+Revision ID: 0083
+Revises: 0082
+Create Date: 2026-07-07
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0083"
+down_revision: Union[str, None] = "0082"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "post", sa.Column("post_title_translated", sa.Text(), nullable=True)
+    )
+    op.add_column(
+        "post", sa.Column("description_translated", sa.Text(), nullable=True)
+    )
+    op.add_column(
+        "post",
+        sa.Column("translated_source_lang", sa.String(8), nullable=True),
+    )
+    op.add_column(
+        "post",
+        sa.Column("translation_engine_version", sa.String(128), nullable=True),
+    )
+    op.add_column(
+        "post",
+        sa.Column("translated_at", sa.DateTime(timezone=True), nullable=True),
+    )
+    op.add_column(
+        "import_settings",
+        sa.Column(
+            "translation_enabled", sa.Boolean(), nullable=False,
+            server_default=sa.text("false"),
+        ),
+    )
+    op.add_column(
+        "import_settings",
+        sa.Column(
+            "interpreter_base_url", sa.Text(), nullable=False, server_default="",
+        ),
+    )
+    op.add_column(
+        "import_settings",
+        sa.Column(
+            "translation_target_lang", sa.Text(), nullable=False,
+            server_default="en",
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("import_settings", "translation_target_lang")
+    op.drop_column("import_settings", "interpreter_base_url")
+    op.drop_column("import_settings", "translation_enabled")
+    op.drop_column("post", "translated_at")
+    op.drop_column("post", "translation_engine_version")
+    op.drop_column("post", "translated_source_lang")
+    op.drop_column("post", "description_translated")
+    op.drop_column("post", "post_title_translated")

alembic/versions/0084_translation_strictness_override.py

@@ -0,0 +1,51 @@
+"""translation strictness setting + per-post translation override (milestone 155)
+
+ImportSettings gains ``translation_min_confidence`` (the latin-script acceptance
+floor, now operator-tunable in the UI; default 0.9 — stricter than the old
+hardcoded 0.8, since Interpreter confidently mis-detects short ASCII English at
+~0.86). Post gains ``translation_override`` — a sticky per-post choice of
+auto / force / original so the operator can force a skipped translation on, or
+knock a wrongly-translated one back to the original, and have it survive a
+Re-translate-all.
+
+Revision ID: 0084
+Revises: 0083
+Create Date: 2026-07-10
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0084"
+down_revision: Union[str, None] = "0083"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "import_settings",
+        sa.Column(
+            "translation_min_confidence", sa.Float(), nullable=False,
+            server_default=sa.text("0.9"),
+        ),
+    )
+    op.add_column(
+        "post",
+        sa.Column(
+            "translation_override", sa.String(16), nullable=False,
+            server_default="auto",
+        ),
+    )
+    op.create_check_constraint(
+        "ck_post_translation_override",
+        "post",
+        "translation_override IN ('auto', 'force', 'original')",
+    )
+
+
+def downgrade() -> None:
+    op.drop_constraint("ck_post_translation_override", "post", type_="check")
+    op.drop_column("post", "translation_override")
+    op.drop_column("import_settings", "translation_min_confidence")

alembic/versions/0085_wip_title_tagging.py

@@ -0,0 +1,35 @@
+"""title-based WIP auto-tagging (task #1458) — ImportSettings toggle
+
+ImportSettings gains wip_title_tagging_enabled (ON by default): when a freshly
+imported post's title explicitly declares work-in-progress ("WIP" / "work in
+progress"), the importer applies the `wip` system tag to its images. No new
+table — the tag itself is the seeded `wip` system tag (migration 0075) and the
+application reuses image_tag with source='wip_title'.
+
+Revision ID: 0085
+Revises: 0084
+Create Date: 2026-07-12
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0085"
+down_revision: Union[str, None] = "0084"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "import_settings",
+        sa.Column(
+            "wip_title_tagging_enabled", sa.Boolean(), nullable=False,
+            server_default=sa.text("true"),
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("import_settings", "wip_title_tagging_enabled")

alembic/versions/0086_process_auto_apply_settings.py

@@ -0,0 +1,61 @@
+"""process auto-apply settings + review mode (#1464) — system-tag refactor
+
+The system-tag behavior refactor gives `wip` / `editor screenshot` (the PROCESS
+group) their own provisional auto-apply, parallel to the presentation (chrome)
+sweep. MLSettings gains three knobs: enabled (OFF by default — a new whole-library
+auto-tagger is opt-in), the flat apply threshold, and the ring-loud conflict
+threshold. presentation_review gains a `mode` column so one review surface serves
+both chrome and process flags (existing rows backfill 'chrome'). server_defaults
+so the existing rows fill cleanly.
+
+Revision ID: 0086
+Revises: 0085
+Create Date: 2026-07-13
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0086"
+down_revision: Union[str, None] = "0085"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "ml_settings",
+        sa.Column(
+            "process_auto_apply_enabled", sa.Boolean(), nullable=False,
+            server_default=sa.text("false"),
+        ),
+    )
+    op.add_column(
+        "ml_settings",
+        sa.Column(
+            "process_auto_apply_threshold", sa.Float(), nullable=False,
+            server_default="0.90",
+        ),
+    )
+    op.add_column(
+        "ml_settings",
+        sa.Column(
+            "process_conflict_threshold", sa.Float(), nullable=False,
+            server_default="0.50",
+        ),
+    )
+    op.add_column(
+        "presentation_review",
+        sa.Column(
+            "mode", sa.String(16), nullable=False,
+            server_default="chrome",
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("presentation_review", "mode")
+    op.drop_column("ml_settings", "process_conflict_threshold")
+    op.drop_column("ml_settings", "process_auto_apply_threshold")
+    op.drop_column("ml_settings", "process_auto_apply_enabled")

alembic/versions/0087_wip_soft_title_tagging.py

@@ -0,0 +1,33 @@
+"""soft WIP title tier toggle (#1474) — ImportSettings.wip_soft_title_tagging_enabled
+
+The soft tier also tags sketch/doodle/scribble titles, but with a provisional source
+that never trains the head. OFF by default (a lower-precision tier is opt-in).
+server_default so the existing singleton row (id=1) fills cleanly.
+
+Revision ID: 0087
+Revises: 0086
+Create Date: 2026-07-13
+"""
+from typing import Sequence, Union
+
+import sqlalchemy as sa
+from alembic import op
+
+revision: str = "0087"
+down_revision: Union[str, None] = "0086"
+branch_labels: Union[str, Sequence[str], None] = None
+depends_on: Union[str, Sequence[str], None] = None
+
+
+def upgrade() -> None:
+    op.add_column(
+        "import_settings",
+        sa.Column(
+            "wip_soft_title_tagging_enabled", sa.Boolean(), nullable=False,
+            server_default=sa.text("false"),
+        ),
+    )
+
+
+def downgrade() -> None:
+    op.drop_column("import_settings", "wip_soft_title_tagging_enabled")

alembic/versions/0089_baseline.py

@@ -1,836 +0,0 @@
-"""The whole schema, in one migration.
-
-This replaces alembic revisions 0001..0089 — the entire build-out of the
-project, 89 files and ~6,000 lines that a new installation used to replay in
-order to arrive at a schema this file creates in one pass. Nothing about the
-resulting database changes; what goes away is the requirement that a stranger
-re-run our development history to get it.
-
-## Why the revision id is 0089
-
-`revision = "0089"` and `down_revision = None` are both deliberate, and the
-combination is the entire migration strategy for existing installations.
-
-An already-deployed database has `alembic_version = '0089'`, because it ran the
-real 0089. This file claims that same id, so alembic reads the version table,
-sees head already reached, and does nothing at all. No stamp is needed — which
-matters because `alembic stamp` writes a version string without validating
-anything about the schema it is writing it against, and a stamp that is wrong
-is indistinguishable from one that is right until the next migration fails.
-
-An empty database has no version row, so alembic runs this file and then
-records `0089`. Both paths converge on the same schema and the same version,
-and neither requires anyone to assert anything by hand.
-
-The next migration written after this one is `0090`, exactly as it would have
-been. The numbering is continuous across the collapse on purpose.
-
-## What was added to the generated output, and why
-
-`alembic revision --autogenerate` produced almost all of this from the models,
-which is only true because #3275 first made the models actually describe the
-schema. Before that reconciliation the generator silently omitted eleven
-indexes and three uniqueness guarantees, and an earlier attempt at this squash
-had to be reverted for exactly that reason.
-
-Four things still had to be added by hand, because they are not in the models:
-
-1. **`CREATE EXTENSION vector`** (from 0001) and **`tsm_system_rows`** (0004).
-   Extensions are database objects, not table metadata, so no model can carry
-   them. `IF NOT EXISTS` because a re-run must not fail.
-
-2. **Three seed inserts** — the two settings singletons (0002, 0003) and the
-   three hygiene system tags (0075). Some migrations did not only build schema;
-   they inserted rows the product needs in order to function, and nothing in
-   the application ever creates them. Every consumer reads them with
-   `scalar_one()`, which RAISES `NoResultFound` on an empty result rather than
-   returning None, so their absence is a crash and not a degradation.
-
-   Distinguishing these from the other data statements in the chain is the
-   whole trick, and the rule turns out to be mechanical:
-
-     * `INSERT ... VALUES (...)` with literal values is a SEED. It creates
-       something the product ships. It must be carried.
-     * `INSERT ... SELECT ... FROM <table>` is a BACKFILL. It derives rows
-       from rows that already exist, so on an empty database it inserts
-       nothing and carrying it would be pointless. 0034 (artist_visit), 0040
-       and 0047 (series_chapter) are all of this shape and are correctly
-       absent here.
-
-   This category is invisible to every automated check this project has:
-   `baseline.yml` compares SCHEMA, and a baseline missing all three seeds still
-   produces a byte-identical schema and a perfectly green diff. What caught the
-   system tags was the integration suite — 36 tests failing on
-   `NoResultFound` — after a first version of this file shipped with only the
-   two settings rows. A first-run check against the real application is the
-   only thing that finds this class of defect.
-
-3. **The `pgvector` import.** Autogenerate emits qualified
-   `pgvector.sqlalchemy.vector.VECTOR(...)` references without importing the
-   package, so the file it writes cannot execute — `NameError: name 'pgvector'
-   is not defined`, observed on run 4988.
-
-The other data statements in the old chain were deliberately NOT carried over.
-0023's `DELETE FROM tag WHERE kind IN (...)`, and 0047's `series_page` /
-`series_chapter` deletes, are historical cleanups that operate on rows an empty
-database does not have.
-
-## Downgrade
-
-There is none. A baseline's downgrade would be "drop the entire schema", which
-is not a migration but a data-loss event wearing one as a disguise. Restore
-from a backup instead — that is what backup_run exists for.
-
-Revision ID: 0089
-Revises:
-Create Date: 2026-09-01
-
-"""
-from typing import Sequence, Union
-
-from alembic import op
-import sqlalchemy as sa
-import pgvector.sqlalchemy.vector
-from sqlalchemy.dialects import postgresql
-
-revision: str = "0089"
-down_revision: Union[str, None] = None
-branch_labels: Union[str, Sequence[str], None] = None
-depends_on: Union[str, Sequence[str], None] = None
-
-
-def upgrade() -> None:
-    # Extensions first: image_record.siglip_embedding is a vector column and
-    # cannot be created before the type exists. From 0001 and 0004.
-    op.execute("CREATE EXTENSION IF NOT EXISTS vector")
-    op.execute("CREATE EXTENSION IF NOT EXISTS tsm_system_rows")
-
-    op.create_table('app_setting',
-    sa.Column('key', sa.String(length=64), nullable=False),
-    sa.Column('value', sa.Text(), nullable=False),
-    sa.Column('updated_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.PrimaryKeyConstraint('key', name=op.f('pk_app_setting'))
-    )
-    op.create_table('artist',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('name', sa.String(length=255), nullable=False),
-    sa.Column('slug', sa.String(length=255), nullable=False),
-    sa.Column('notes', sa.Text(), nullable=True),
-    sa.Column('is_subscription', sa.Boolean(), server_default='false', nullable=False),
-    sa.Column('auto_check', sa.Boolean(), server_default='true', nullable=False),
-    sa.Column('check_interval_seconds', sa.Integer(), nullable=True),
-    sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_artist')),
-    sa.UniqueConstraint('slug', name=op.f('uq_artist_slug'))
-    )
-    op.create_table('backup_run',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('kind', sa.String(length=16), nullable=False),
-    sa.Column('status', sa.String(length=16), server_default='pending', nullable=False),
-    sa.Column('tag', sa.String(length=64), nullable=True),
-    sa.Column('triggered_by', sa.String(length=32), nullable=False),
-    sa.Column('started_at', sa.DateTime(timezone=True), nullable=False),
-    sa.Column('finished_at', sa.DateTime(timezone=True), nullable=True),
-    sa.Column('sql_path', sa.Text(), nullable=True),
-    sa.Column('tar_path', sa.Text(), nullable=True),
-    sa.Column('size_bytes', sa.BigInteger(), nullable=True),
-    sa.Column('error', sa.Text(), nullable=True),
-    sa.Column('manifest', sa.JSON(), server_default='{}', nullable=False),
-    sa.Column('restored_from_id', sa.Integer(), nullable=True),
-    sa.ForeignKeyConstraint(['restored_from_id'], ['backup_run.id'], name=op.f('fk_backup_run_restored_from_id_backup_run'), ondelete='SET NULL'),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_backup_run'))
-    )
-    op.create_index(op.f('ix_backup_run_finished_at'), 'backup_run', ['finished_at'], unique=False)
-    op.create_index('ix_backup_run_kind_started', 'backup_run', ['kind', sa.literal_column('started_at DESC')], unique=False)
-    op.create_index(op.f('ix_backup_run_restored_from_id'), 'backup_run', ['restored_from_id'], unique=False)
-    op.create_index(op.f('ix_backup_run_started_at'), 'backup_run', ['started_at'], unique=False)
-    op.create_index('ix_backup_run_status_finished', 'backup_run', ['status', sa.literal_column('finished_at DESC')], unique=False)
-    op.create_index(op.f('ix_backup_run_tag'), 'backup_run', ['tag'], unique=False)
-    op.create_index('ix_backup_run_tag_partial', 'backup_run', ['tag'], unique=False, postgresql_where=sa.text('tag IS NOT NULL'))
-    op.create_table('credential',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('platform', sa.String(length=64), nullable=False),
-    sa.Column('credential_type', sa.String(length=32), nullable=False),
-    sa.Column('encrypted_blob', sa.LargeBinary(), nullable=False),
-    sa.Column('captured_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.Column('expires_at', sa.DateTime(timezone=True), nullable=True),
-    sa.Column('last_verified', sa.DateTime(timezone=True), nullable=True),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_credential')),
-    sa.UniqueConstraint('platform', name=op.f('uq_credential_platform'))
-    )
-    op.create_table('head_auto_apply_run',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('dry_run', sa.Boolean(), server_default='false', nullable=False),
-    sa.Column('params', postgresql.JSONB(astext_type=sa.Text()), nullable=False),
-    sa.Column('status', sa.String(length=16), server_default='running', nullable=False),
-    sa.Column('started_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.Column('finished_at', sa.DateTime(timezone=True), nullable=True),
-    sa.Column('n_applied', sa.Integer(), nullable=True),
-    sa.Column('report', postgresql.JSONB(astext_type=sa.Text()), nullable=True),
-    sa.Column('error', sa.Text(), nullable=True),
-    sa.Column('last_progress_at', sa.DateTime(timezone=True), nullable=True),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_head_auto_apply_run'))
-    )
-    op.create_index(op.f('ix_head_auto_apply_run_status'), 'head_auto_apply_run', ['status'], unique=False)
-    op.create_table('head_training_run',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('params', postgresql.JSONB(astext_type=sa.Text()), nullable=False),
-    sa.Column('status', sa.String(length=16), server_default='running', nullable=False),
-    sa.Column('started_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.Column('finished_at', sa.DateTime(timezone=True), nullable=True),
-    sa.Column('n_trained', sa.Integer(), nullable=True),
-    sa.Column('n_skipped', sa.Integer(), nullable=True),
-    sa.Column('error', sa.Text(), nullable=True),
-    sa.Column('last_progress_at', sa.DateTime(timezone=True), nullable=True),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_head_training_run'))
-    )
-    op.create_index(op.f('ix_head_training_run_status'), 'head_training_run', ['status'], unique=False)
-    op.create_table('import_batch',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('triggered_by', sa.String(length=32), nullable=False),
-    sa.Column('source_path', sa.Text(), nullable=False),
-    sa.Column('scan_mode', sa.String(length=16), nullable=False),
-    sa.Column('started_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.Column('finished_at', sa.DateTime(timezone=True), nullable=True),
-    sa.Column('total_files', sa.Integer(), server_default='0', nullable=False),
-    sa.Column('imported', sa.Integer(), server_default='0', nullable=False),
-    sa.Column('skipped', sa.Integer(), server_default='0', nullable=False),
-    sa.Column('failed', sa.Integer(), server_default='0', nullable=False),
-    sa.Column('attachments', sa.Integer(), server_default='0', nullable=False),
-    sa.Column('refreshed', sa.Integer(), server_default='0', nullable=False),
-    sa.Column('status', sa.String(length=16), server_default='running', nullable=False),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_import_batch'))
-    )
-    op.create_index(op.f('ix_import_batch_status'), 'import_batch', ['status'], unique=False)
-    op.create_table('import_settings',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('import_scan_path', sa.Text(), server_default='/import', nullable=False),
-    sa.Column('min_width', sa.Integer(), server_default='0', nullable=False),
-    sa.Column('min_height', sa.Integer(), server_default='0', nullable=False),
-    sa.Column('skip_transparent', sa.Boolean(), server_default='false', nullable=False),
-    sa.Column('transparency_threshold', sa.Float(), server_default='0.9', nullable=False),
-    sa.Column('skip_single_color', sa.Boolean(), server_default='false', nullable=False),
-    sa.Column('single_color_threshold', sa.Float(), server_default='0.95', nullable=False),
-    sa.Column('single_color_tolerance', sa.Integer(), server_default='30', nullable=False),
-    sa.Column('phash_threshold', sa.Integer(), server_default='10', nullable=False),
-    sa.Column('download_rate_limit_seconds', sa.Float(), server_default='3', nullable=False),
-    sa.Column('download_validate_files', sa.Boolean(), server_default='true', nullable=False),
-    sa.Column('download_schedule_default_seconds', sa.Integer(), server_default='28800', nullable=False),
-    sa.Column('download_event_retention_days', sa.Integer(), server_default='90', nullable=False),
-    sa.Column('download_failure_warning_threshold', sa.Integer(), server_default='5', nullable=False),
-    sa.Column('backup_db_nightly_enabled', sa.Boolean(), server_default='false', nullable=False),
-    sa.Column('backup_db_nightly_hour_utc', sa.Integer(), server_default='3', nullable=False),
-    sa.Column('backup_db_keep_last_n', sa.Integer(), server_default='14', nullable=False),
-    sa.Column('backup_images_keep_last_n', sa.Integer(), server_default='3', nullable=False),
-    sa.Column('series_suggest_enabled', sa.Boolean(), server_default='true', nullable=False),
-    sa.Column('series_suggest_threshold', sa.Float(), server_default='0.5', nullable=False),
-    sa.Column('extdl_mega_enabled', sa.Boolean(), server_default='true', nullable=False),
-    sa.Column('extdl_gdrive_enabled', sa.Boolean(), server_default='true', nullable=False),
-    sa.Column('extdl_mediafire_enabled', sa.Boolean(), server_default='true', nullable=False),
-    sa.Column('extdl_dropbox_enabled', sa.Boolean(), server_default='true', nullable=False),
-    sa.Column('extdl_pixeldrain_enabled', sa.Boolean(), server_default='true', nullable=False),
-    sa.Column('translation_enabled', sa.Boolean(), server_default='false', nullable=False),
-    sa.Column('interpreter_base_url', sa.Text(), server_default='', nullable=False),
-    sa.Column('translation_target_lang', sa.Text(), server_default='en', nullable=False),
-    sa.Column('translation_min_confidence', sa.Float(), server_default=sa.text('0.9'), nullable=False),
-    sa.Column('wip_title_tagging_enabled', sa.Boolean(), server_default='true', nullable=False),
-    sa.Column('wip_soft_title_tagging_enabled', sa.Boolean(), server_default='false', nullable=False),
-    sa.CheckConstraint('id = 1', name=op.f('ck_import_settings_singleton')),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_import_settings'))
-    )
-    op.create_table('library_audit_run',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('rule', sa.String(length=32), nullable=False),
-    sa.Column('params', postgresql.JSONB(astext_type=sa.Text()), nullable=False),
-    sa.Column('status', sa.String(length=16), server_default='running', nullable=False),
-    sa.Column('started_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.Column('finished_at', sa.DateTime(timezone=True), nullable=True),
-    sa.Column('scanned_count', sa.Integer(), server_default='0', nullable=False),
-    sa.Column('matched_count', sa.Integer(), server_default='0', nullable=False),
-    sa.Column('matched_ids', postgresql.JSONB(astext_type=sa.Text()), server_default=sa.text("'[]'::jsonb"), nullable=False),
-    sa.Column('error', sa.Text(), nullable=True),
-    sa.Column('resume_after_id', sa.Integer(), server_default='0', nullable=False),
-    sa.Column('last_progress_at', sa.DateTime(timezone=True), nullable=True),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_library_audit_run'))
-    )
-    op.create_index(op.f('ix_library_audit_run_rule'), 'library_audit_run', ['rule'], unique=False)
-    op.create_index(op.f('ix_library_audit_run_status'), 'library_audit_run', ['status'], unique=False)
-    op.create_table('ml_settings',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('cpu_embed_enabled', sa.Boolean(), server_default='true', nullable=False),
-    sa.Column('video_frame_interval_seconds', sa.Float(), server_default='4', nullable=False),
-    sa.Column('video_max_frames', sa.Integer(), server_default='64', nullable=False),
-    sa.Column('head_min_positives', sa.Integer(), server_default='8', nullable=False),
-    sa.Column('head_auto_apply_precision', sa.Float(), server_default='0.97', nullable=False),
-    sa.Column('head_auto_apply_enabled', sa.Boolean(), server_default='true', nullable=False),
-    sa.Column('head_auto_apply_min_positives', sa.Integer(), server_default='30', nullable=False),
-    sa.Column('ccip_match_threshold', sa.Float(), server_default='0.85', nullable=False),
-    sa.Column('ccip_auto_apply_enabled', sa.Boolean(), server_default='true', nullable=False),
-    sa.Column('ccip_auto_apply_threshold', sa.Float(), server_default='0.92', nullable=False),
-    sa.Column('presentation_auto_apply_enabled', sa.Boolean(), server_default='true', nullable=False),
-    sa.Column('presentation_auto_apply_threshold', sa.Float(), server_default=sa.text('0.90'), nullable=False),
-    sa.Column('presentation_conflict_threshold', sa.Float(), server_default=sa.text('0.50'), nullable=False),
-    sa.Column('process_auto_apply_enabled', sa.Boolean(), server_default='false', nullable=False),
-    sa.Column('process_auto_apply_threshold', sa.Float(), server_default='0.90', nullable=False),
-    sa.Column('process_conflict_threshold', sa.Float(), server_default='0.50', nullable=False),
-    sa.Column('embedder_model_version', sa.String(length=128), server_default='siglip2-so400m-patch16-512', nullable=False),
-    sa.Column('embedder_model_name', sa.String(length=128), server_default='google/siglip2-so400m-patch16-512', nullable=False),
-    sa.Column('detector_person_enabled', sa.Boolean(), server_default='true', nullable=False),
-    sa.Column('detector_person_weights', sa.String(length=512), server_default='yolo11n.pt', nullable=False),
-    sa.Column('detector_person_conf', sa.Float(), server_default=sa.text('0.35'), nullable=False),
-    sa.Column('detector_anatomy_enabled', sa.Boolean(), server_default='true', nullable=False),
-    sa.Column('detector_anatomy_weights', sa.String(length=512), server_default='https://github.com/aperveyev/booru_yolo/raw/main/models/yolov11m_aa22.pt', nullable=False),
-    sa.Column('detector_anatomy_conf', sa.Float(), server_default=sa.text('0.30'), nullable=False),
-    sa.Column('detector_panel_enabled', sa.Boolean(), server_default='true', nullable=False),
-    sa.Column('detector_panel_weights', sa.String(length=512), server_default='mosesb/best-comic-panel-detection::best.pt', nullable=False),
-    sa.Column('detector_panel_conf', sa.Float(), server_default=sa.text('0.30'), nullable=False),
-    sa.Column('detector_max_figures', sa.Integer(), server_default='8', nullable=False),
-    sa.Column('detector_max_components', sa.Integer(), server_default='8', nullable=False),
-    sa.Column('detector_max_panels', sa.Integer(), server_default='8', nullable=False),
-    sa.Column('detector_max_regions', sa.Integer(), server_default='128', nullable=False),
-    sa.Column('detector_dedupe_iou', sa.Float(), server_default=sa.text('0.85'), nullable=False),
-    sa.Column('ccip_ref_signature', sa.String(length=128), nullable=True),
-    sa.Column('ccip_prototype_cap', sa.Integer(), server_default='64', nullable=False),
-    sa.Column('updated_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.CheckConstraint('id = 1', name=op.f('ck_ml_settings_singleton')),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_ml_settings'))
-    )
-    op.create_table('tag',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('name', sa.String(length=255), nullable=False),
-    sa.Column('kind', sa.Enum('artist', 'character', 'fandom', 'general', 'series', 'archive', 'post', name='tag_kind'), server_default='general', nullable=False),
-    sa.Column('fandom_id', sa.Integer(), nullable=True),
-    sa.Column('is_system', sa.Boolean(), server_default=sa.text('false'), nullable=False),
-    sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.CheckConstraint("(fandom_id IS NULL) OR (kind = 'character')", name=op.f('ck_tag_fandom_requires_character')),
-    sa.ForeignKeyConstraint(['fandom_id'], ['tag.id'], name=op.f('fk_tag_fandom_id_tag'), ondelete='SET NULL'),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_tag'))
-    )
-    op.create_index(op.f('ix_tag_fandom_id'), 'tag', ['fandom_id'], unique=False)
-    op.create_index('uq_tag_name_kind_fandom', 'tag', ['name', 'kind', sa.literal_column('COALESCE(fandom_id, 0)')], unique=True)
-    op.create_table('task_run',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('celery_task_id', sa.String(length=64), nullable=False),
-    sa.Column('queue', sa.String(length=32), nullable=False),
-    sa.Column('task_name', sa.String(length=128), nullable=False),
-    sa.Column('target_id', sa.Integer(), nullable=True),
-    sa.Column('started_at', sa.DateTime(timezone=True), nullable=False),
-    sa.Column('finished_at', sa.DateTime(timezone=True), nullable=True),
-    sa.Column('duration_ms', sa.Integer(), nullable=True),
-    sa.Column('status', sa.String(length=16), server_default='running', nullable=False),
-    sa.Column('error_type', sa.String(length=128), nullable=True),
-    sa.Column('error_message', sa.Text(), nullable=True),
-    sa.Column('retry_count', sa.Integer(), nullable=True),
-    sa.Column('worker_hostname', sa.String(length=128), nullable=True),
-    sa.Column('args_summary', sa.String(length=255), nullable=True),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_task_run'))
-    )
-    op.create_index(op.f('ix_task_run_celery_task_id'), 'task_run', ['celery_task_id'], unique=False)
-    op.create_index(op.f('ix_task_run_finished_at'), 'task_run', ['finished_at'], unique=False)
-    op.create_index('ix_task_run_name_started', 'task_run', ['task_name', sa.literal_column('started_at DESC')], unique=False)
-    op.create_index('ix_task_run_queue_started', 'task_run', ['queue', sa.literal_column('started_at DESC')], unique=False)
-    op.create_index(op.f('ix_task_run_started_at'), 'task_run', ['started_at'], unique=False)
-    op.create_index('ix_task_run_status_started', 'task_run', ['status', sa.literal_column('started_at DESC')], unique=False)
-    op.create_table('artist_visit',
-    sa.Column('artist_id', sa.Integer(), nullable=False),
-    sa.Column('last_viewed_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.ForeignKeyConstraint(['artist_id'], ['artist.id'], name=op.f('fk_artist_visit_artist_id_artist'), ondelete='CASCADE'),
-    sa.PrimaryKeyConstraint('artist_id', name=op.f('pk_artist_visit'))
-    )
-    op.create_table('ccip_prototype_state',
-    sa.Column('tag_id', sa.Integer(), nullable=False),
-    sa.Column('fingerprint', sa.String(length=64), nullable=False),
-    sa.Column('updated_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.ForeignKeyConstraint(['tag_id'], ['tag.id'], name=op.f('fk_ccip_prototype_state_tag_id_tag'), ondelete='CASCADE'),
-    sa.PrimaryKeyConstraint('tag_id', name=op.f('pk_ccip_prototype_state'))
-    )
-    op.create_table('head_metric',
-    sa.Column('tag_id', sa.Integer(), nullable=False),
-    sa.Column('n_misfires', sa.Integer(), server_default='0', nullable=False),
-    sa.Column('n_underfires', sa.Integer(), server_default='0', nullable=False),
-    sa.Column('updated_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.ForeignKeyConstraint(['tag_id'], ['tag.id'], name=op.f('fk_head_metric_tag_id_tag'), ondelete='CASCADE'),
-    sa.PrimaryKeyConstraint('tag_id', name=op.f('pk_head_metric'))
-    )
-    op.create_table('head_metrics_snapshot',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('tag_id', sa.Integer(), nullable=True),
-    sa.Column('name', sa.String(length=255), nullable=False),
-    sa.Column('snapshot_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.Column('n_auto_applied', sa.Integer(), server_default='0', nullable=False),
-    sa.Column('n_misfires', sa.Integer(), server_default='0', nullable=False),
-    sa.Column('n_underfires', sa.Integer(), server_default='0', nullable=False),
-    sa.Column('ap', sa.Float(), nullable=True),
-    sa.Column('precision_cv', sa.Float(), nullable=True),
-    sa.Column('recall', sa.Float(), nullable=True),
-    sa.Column('n_pos', sa.Integer(), nullable=True),
-    sa.ForeignKeyConstraint(['tag_id'], ['tag.id'], name=op.f('fk_head_metrics_snapshot_tag_id_tag'), ondelete='CASCADE'),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_head_metrics_snapshot'))
-    )
-    op.create_index(op.f('ix_head_metrics_snapshot_snapshot_at'), 'head_metrics_snapshot', ['snapshot_at'], unique=False)
-    op.create_index(op.f('ix_head_metrics_snapshot_tag_id'), 'head_metrics_snapshot', ['tag_id'], unique=False)
-    op.create_table('source',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('artist_id', sa.Integer(), nullable=False),
-    sa.Column('platform', sa.String(length=64), nullable=False),
-    sa.Column('url', sa.Text(), nullable=False),
-    sa.Column('enabled', sa.Boolean(), server_default='true', nullable=False),
-    sa.Column('config_overrides', sa.JSON(), nullable=True),
-    sa.Column('last_checked_at', sa.DateTime(timezone=True), nullable=True),
-    sa.Column('last_error', sa.Text(), nullable=True),
-    sa.Column('error_type', sa.String(length=32), nullable=True),
-    sa.Column('check_interval_override', sa.Integer(), nullable=True),
-    sa.Column('consecutive_failures', sa.Integer(), server_default='0', nullable=False),
-    sa.Column('backfill_runs_remaining', sa.Integer(), server_default='0', nullable=False),
-    sa.ForeignKeyConstraint(['artist_id'], ['artist.id'], name=op.f('fk_source_artist_id_artist'), ondelete='CASCADE'),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_source')),
-    sa.UniqueConstraint('artist_id', 'platform', 'url', name='uq_source_artist_platform_url')
-    )
-    op.create_index(op.f('ix_source_artist_id'), 'source', ['artist_id'], unique=False)
-    op.create_index(op.f('ix_source_error_type'), 'source', ['error_type'], unique=False)
-    op.create_table('tag_alias',
-    sa.Column('alias_string', sa.String(length=255), nullable=False),
-    sa.Column('alias_category', sa.String(length=32), nullable=False),
-    sa.Column('canonical_tag_id', sa.Integer(), nullable=False),
-    sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.ForeignKeyConstraint(['canonical_tag_id'], ['tag.id'], name=op.f('fk_tag_alias_canonical_tag_id_tag'), ondelete='CASCADE'),
-    sa.PrimaryKeyConstraint('alias_string', 'alias_category', name=op.f('pk_tag_alias'))
-    )
-    op.create_index('ix_tag_alias_canonical', 'tag_alias', ['canonical_tag_id'], unique=False)
-    op.create_table('tag_head',
-    sa.Column('tag_id', sa.Integer(), nullable=False),
-    sa.Column('embedding_version', sa.String(length=128), nullable=False),
-    sa.Column('weights', pgvector.sqlalchemy.vector.VECTOR(dim=1152), nullable=False),
-    sa.Column('bias', sa.Float(), nullable=False),
-    sa.Column('suggest_threshold', sa.Float(), nullable=False),
-    sa.Column('auto_apply_threshold', sa.Float(), nullable=True),
-    sa.Column('n_pos', sa.Integer(), nullable=False),
-    sa.Column('n_neg', sa.Integer(), nullable=False),
-    sa.Column('ap', sa.Float(), nullable=False),
-    sa.Column('precision_cv', sa.Float(), nullable=False),
-    sa.Column('recall', sa.Float(), nullable=False),
-    sa.Column('trained_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.Column('train_fingerprint', sa.String(length=128), nullable=True),
-    sa.Column('metrics', postgresql.JSONB(astext_type=sa.Text()), nullable=True),
-    sa.ForeignKeyConstraint(['tag_id'], ['tag.id'], name=op.f('fk_tag_head_tag_id_tag'), ondelete='CASCADE'),
-    sa.PrimaryKeyConstraint('tag_id', name=op.f('pk_tag_head'))
-    )
-    op.create_table('patreon_failed_media',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('source_id', sa.Integer(), nullable=False),
-    sa.Column('filehash', sa.String(length=128), nullable=False),
-    sa.Column('attempts', sa.Integer(), server_default='1', nullable=False),
-    sa.Column('last_error', sa.Text(), nullable=True),
-    sa.Column('first_failed_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.Column('last_failed_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.ForeignKeyConstraint(['source_id'], ['source.id'], name=op.f('fk_patreon_failed_media_source_id_source'), ondelete='CASCADE'),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_patreon_failed_media')),
-    sa.UniqueConstraint('source_id', 'filehash', name='uq_patreon_failed_media_source_id')
-    )
-    op.create_index(op.f('ix_patreon_failed_media_source_id'), 'patreon_failed_media', ['source_id'], unique=False)
-    op.create_table('patreon_seen_media',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('source_id', sa.Integer(), nullable=False),
-    sa.Column('filehash', sa.String(length=128), nullable=False),
-    sa.Column('post_id', sa.String(length=64), nullable=True),
-    sa.Column('seen_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.ForeignKeyConstraint(['source_id'], ['source.id'], name=op.f('fk_patreon_seen_media_source_id_source'), ondelete='CASCADE'),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_patreon_seen_media')),
-    sa.UniqueConstraint('source_id', 'filehash', name='uq_patreon_seen_media_source_id')
-    )
-    op.create_index(op.f('ix_patreon_seen_media_source_id'), 'patreon_seen_media', ['source_id'], unique=False)
-    op.create_table('pixiv_failed_media',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('source_id', sa.Integer(), nullable=False),
-    sa.Column('filehash', sa.String(length=128), nullable=False),
-    sa.Column('attempts', sa.Integer(), server_default='1', nullable=False),
-    sa.Column('last_error', sa.Text(), nullable=True),
-    sa.Column('first_failed_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.Column('last_failed_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.ForeignKeyConstraint(['source_id'], ['source.id'], name=op.f('fk_pixiv_failed_media_source_id_source'), ondelete='CASCADE'),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_pixiv_failed_media')),
-    sa.UniqueConstraint('source_id', 'filehash', name='uq_pixiv_failed_media_source_id')
-    )
-    op.create_index(op.f('ix_pixiv_failed_media_source_id'), 'pixiv_failed_media', ['source_id'], unique=False)
-    op.create_table('pixiv_seen_media',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('source_id', sa.Integer(), nullable=False),
-    sa.Column('filehash', sa.String(length=128), nullable=False),
-    sa.Column('post_id', sa.String(length=64), nullable=True),
-    sa.Column('seen_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.ForeignKeyConstraint(['source_id'], ['source.id'], name=op.f('fk_pixiv_seen_media_source_id_source'), ondelete='CASCADE'),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_pixiv_seen_media')),
-    sa.UniqueConstraint('source_id', 'filehash', name='uq_pixiv_seen_media_source_id')
-    )
-    op.create_index(op.f('ix_pixiv_seen_media_source_id'), 'pixiv_seen_media', ['source_id'], unique=False)
-    op.create_table('post',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('source_id', sa.Integer(), nullable=True),
-    sa.Column('artist_id', sa.Integer(), nullable=False),
-    sa.Column('external_post_id', sa.String(length=128), nullable=False),
-    sa.Column('post_url', sa.Text(), nullable=True),
-    sa.Column('post_title', sa.Text(), nullable=True),
-    sa.Column('post_date', sa.DateTime(timezone=True), nullable=True),
-    sa.Column('raw_metadata', sa.JSON(), nullable=True),
-    sa.Column('description', sa.Text(), nullable=True),
-    sa.Column('attachment_count', sa.Integer(), nullable=True),
-    sa.Column('post_title_translated', sa.Text(), nullable=True),
-    sa.Column('description_translated', sa.Text(), nullable=True),
-    sa.Column('translated_source_lang', sa.String(length=8), nullable=True),
-    sa.Column('translation_engine_version', sa.String(length=128), nullable=True),
-    sa.Column('translated_at', sa.DateTime(timezone=True), nullable=True),
-    sa.Column('translation_override', sa.String(length=16), server_default='auto', nullable=False),
-    sa.Column('downloaded_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.CheckConstraint("translation_override IN ('auto', 'force', 'original')", name=op.f('ck_post_translation_override')),
-    sa.ForeignKeyConstraint(['artist_id'], ['artist.id'], name=op.f('fk_post_artist_id_artist'), ondelete='CASCADE'),
-    sa.ForeignKeyConstraint(['source_id'], ['source.id'], name=op.f('fk_post_source_id_source'), ondelete='SET NULL'),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_post')),
-    sa.UniqueConstraint('source_id', 'external_post_id', name='uq_post_source_external_id')
-    )
-    op.create_index(op.f('ix_post_artist_id'), 'post', ['artist_id'], unique=False)
-    op.create_index(op.f('ix_post_source_id'), 'post', ['source_id'], unique=False)
-    op.create_index('uq_post_artist_external_id_null_source', 'post', ['artist_id', 'external_post_id'], unique=True, postgresql_where=sa.text('source_id IS NULL'))
-    op.create_table('subscribestar_failed_media',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('source_id', sa.Integer(), nullable=False),
-    sa.Column('filehash', sa.String(length=128), nullable=False),
-    sa.Column('attempts', sa.Integer(), server_default='1', nullable=False),
-    sa.Column('last_error', sa.Text(), nullable=True),
-    sa.Column('first_failed_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.Column('last_failed_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.ForeignKeyConstraint(['source_id'], ['source.id'], name=op.f('fk_subscribestar_failed_media_source_id_source'), ondelete='CASCADE'),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_subscribestar_failed_media')),
-    sa.UniqueConstraint('source_id', 'filehash', name='uq_subscribestar_failed_media_source_id')
-    )
-    op.create_index(op.f('ix_subscribestar_failed_media_source_id'), 'subscribestar_failed_media', ['source_id'], unique=False)
-    op.create_table('subscribestar_seen_media',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('source_id', sa.Integer(), nullable=False),
-    sa.Column('filehash', sa.String(length=128), nullable=False),
-    sa.Column('post_id', sa.String(length=64), nullable=True),
-    sa.Column('seen_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.ForeignKeyConstraint(['source_id'], ['source.id'], name=op.f('fk_subscribestar_seen_media_source_id_source'), ondelete='CASCADE'),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_subscribestar_seen_media')),
-    sa.UniqueConstraint('source_id', 'filehash', name='uq_subscribestar_seen_media_source_id')
-    )
-    op.create_index(op.f('ix_subscribestar_seen_media_source_id'), 'subscribestar_seen_media', ['source_id'], unique=False)
-    op.create_table('download_event',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('source_id', sa.Integer(), nullable=False),
-    sa.Column('post_id', sa.Integer(), nullable=True),
-    sa.Column('status', sa.String(length=32), nullable=False),
-    sa.Column('started_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.Column('finished_at', sa.DateTime(timezone=True), nullable=True),
-    sa.Column('bytes_downloaded', sa.BigInteger(), server_default='0', nullable=False),
-    sa.Column('files_count', sa.Integer(), server_default='0', nullable=False),
-    sa.Column('error', sa.Text(), nullable=True),
-    sa.Column('metadata', postgresql.JSONB(astext_type=sa.Text()), server_default=sa.text("'{}'::jsonb"), nullable=False),
-    sa.ForeignKeyConstraint(['post_id'], ['post.id'], name=op.f('fk_download_event_post_id_post'), ondelete='SET NULL'),
-    sa.ForeignKeyConstraint(['source_id'], ['source.id'], name=op.f('fk_download_event_source_id_source'), ondelete='CASCADE'),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_download_event'))
-    )
-    op.create_index(op.f('ix_download_event_post_id'), 'download_event', ['post_id'], unique=False)
-    op.create_index(op.f('ix_download_event_source_id'), 'download_event', ['source_id'], unique=False)
-    op.create_table('image_record',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('path', sa.Text(), nullable=False),
-    sa.Column('sha256', sa.String(length=64), nullable=False),
-    sa.Column('phash', sa.String(length=32), nullable=True),
-    sa.Column('size_bytes', sa.BigInteger(), nullable=False),
-    sa.Column('mime', sa.String(length=64), nullable=False),
-    sa.Column('width', sa.Integer(), nullable=True),
-    sa.Column('height', sa.Integer(), nullable=True),
-    sa.Column('duration_seconds', sa.Float(), nullable=True),
-    sa.Column('integrity_status', sa.String(length=24), server_default='unknown', nullable=False),
-    sa.Column('thumbnail_path', sa.Text(), nullable=True),
-    sa.Column('source_url', sa.Text(), nullable=True),
-    sa.Column('source_filehash', sa.String(length=32), nullable=True),
-    sa.Column('origin', sa.Enum('downloaded', 'imported_filesystem', 'uploaded', name='origin_enum'), nullable=False),
-    sa.Column('primary_post_id', sa.Integer(), nullable=True),
-    sa.Column('artist_id', sa.Integer(), nullable=True),
-    sa.Column('siglip_embedding', pgvector.sqlalchemy.vector.VECTOR(dim=1152), nullable=True),
-    sa.Column('siglip_model_version', sa.String(length=128), nullable=True),
-    sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.Column('effective_date', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.Column('earliest_post_date', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.Column('updated_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.ForeignKeyConstraint(['artist_id'], ['artist.id'], name='fk_image_record_artist_id', ondelete='SET NULL'),
-    sa.ForeignKeyConstraint(['primary_post_id'], ['post.id'], name=op.f('fk_image_record_primary_post_id_post'), ondelete='SET NULL'),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_image_record')),
-    sa.UniqueConstraint('path', name=op.f('uq_image_record_path')),
-    sa.UniqueConstraint('sha256', name='uq_image_record_sha256')
-    )
-    op.create_index(op.f('ix_image_record_artist_id'), 'image_record', ['artist_id'], unique=False)
-    op.create_index('ix_image_record_earliest_post_date', 'image_record', [sa.literal_column('earliest_post_date DESC'), sa.literal_column('id DESC')], unique=False)
-    op.create_index('ix_image_record_effective_date', 'image_record', [sa.literal_column('effective_date DESC'), sa.literal_column('id DESC')], unique=False)
-    op.create_index(op.f('ix_image_record_integrity_status'), 'image_record', ['integrity_status'], unique=False)
-    op.create_index(op.f('ix_image_record_phash'), 'image_record', ['phash'], unique=False)
-    op.create_index(op.f('ix_image_record_primary_post_id'), 'image_record', ['primary_post_id'], unique=False)
-    op.create_index('ix_image_record_siglip_hnsw', 'image_record', ['siglip_embedding'], unique=False, postgresql_using='hnsw', postgresql_ops={'siglip_embedding': 'vector_cosine_ops'})
-    op.create_index(op.f('ix_image_record_source_filehash'), 'image_record', ['source_filehash'], unique=False)
-    op.create_table('post_attachment',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('post_id', sa.Integer(), nullable=True),
-    sa.Column('artist_id', sa.Integer(), nullable=True),
-    sa.Column('sha256', sa.String(length=64), nullable=False),
-    sa.Column('path', sa.Text(), nullable=False),
-    sa.Column('original_filename', sa.Text(), nullable=False),
-    sa.Column('ext', sa.String(length=32), nullable=False),
-    sa.Column('mime', sa.String(length=128), nullable=True),
-    sa.Column('size_bytes', sa.BigInteger(), nullable=False),
-    sa.Column('captured_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.ForeignKeyConstraint(['artist_id'], ['artist.id'], name=op.f('fk_post_attachment_artist_id_artist'), ondelete='SET NULL'),
-    sa.ForeignKeyConstraint(['post_id'], ['post.id'], name=op.f('fk_post_attachment_post_id_post'), ondelete='SET NULL'),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_post_attachment'))
-    )
-    op.create_index(op.f('ix_post_attachment_artist_id'), 'post_attachment', ['artist_id'], unique=False)
-    op.create_index(op.f('ix_post_attachment_post_id'), 'post_attachment', ['post_id'], unique=False)
-    op.create_index(op.f('ix_post_attachment_sha256'), 'post_attachment', ['sha256'], unique=False)
-    op.create_index('uq_post_attachment_null_post_sha', 'post_attachment', ['sha256'], unique=True, postgresql_where=sa.text('post_id IS NULL'))
-    op.create_index('uq_post_attachment_post_sha', 'post_attachment', ['post_id', 'sha256'], unique=True, postgresql_where=sa.text('post_id IS NOT NULL'))
-    op.create_table('series_suggestion',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('post_id', sa.Integer(), nullable=False),
-    sa.Column('series_tag_id', sa.Integer(), nullable=False),
-    sa.Column('score', sa.Float(), nullable=False),
-    sa.Column('signals', sa.JSON(), nullable=True),
-    sa.Column('status', sa.String(length=16), server_default='pending', nullable=False),
-    sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.Column('updated_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.ForeignKeyConstraint(['post_id'], ['post.id'], name=op.f('fk_series_suggestion_post_id_post'), ondelete='CASCADE'),
-    sa.ForeignKeyConstraint(['series_tag_id'], ['tag.id'], name=op.f('fk_series_suggestion_series_tag_id_tag'), ondelete='CASCADE'),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_series_suggestion')),
-    sa.UniqueConstraint('post_id', 'series_tag_id', name='uq_series_suggestion_post_series')
-    )
-    op.create_index(op.f('ix_series_suggestion_post_id'), 'series_suggestion', ['post_id'], unique=False)
-    op.create_index(op.f('ix_series_suggestion_series_tag_id'), 'series_suggestion', ['series_tag_id'], unique=False)
-    op.create_index(op.f('ix_series_suggestion_status'), 'series_suggestion', ['status'], unique=False)
-    op.create_table('external_link',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('post_id', sa.Integer(), nullable=False),
-    sa.Column('artist_id', sa.Integer(), nullable=True),
-    sa.Column('host', sa.String(length=16), nullable=False),
-    sa.Column('url', sa.Text(), nullable=False),
-    sa.Column('label', sa.Text(), nullable=True),
-    sa.Column('status', sa.String(length=16), server_default='pending', nullable=False),
-    sa.Column('attempts', sa.Integer(), server_default=sa.text('0'), nullable=False),
-    sa.Column('last_error', sa.Text(), nullable=True),
-    sa.Column('attachment_id', sa.Integer(), nullable=True),
-    sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.Column('completed_at', sa.DateTime(timezone=True), nullable=True),
-    sa.Column('duration_seconds', sa.Float(), nullable=True),
-    sa.CheckConstraint("host IN ('mega', 'gdrive', 'mediafire', 'dropbox', 'pixeldrain')", name=op.f('ck_external_link_host')),
-    sa.CheckConstraint("status IN ('pending', 'downloading', 'downloaded', 'failed', 'skipped', 'dead')", name=op.f('ck_external_link_status')),
-    sa.ForeignKeyConstraint(['artist_id'], ['artist.id'], name=op.f('fk_external_link_artist_id_artist'), ondelete='SET NULL'),
-    sa.ForeignKeyConstraint(['attachment_id'], ['post_attachment.id'], name=op.f('fk_external_link_attachment_id_post_attachment'), ondelete='SET NULL'),
-    sa.ForeignKeyConstraint(['post_id'], ['post.id'], name=op.f('fk_external_link_post_id_post'), ondelete='CASCADE'),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_external_link'))
-    )
-    op.create_index(op.f('ix_external_link_artist_id'), 'external_link', ['artist_id'], unique=False)
-    op.create_index('ix_external_link_attachment_id', 'external_link', ['attachment_id'], unique=False)
-    op.create_index('ix_external_link_status', 'external_link', ['status'], unique=False)
-    op.create_index('uq_external_link_post_url', 'external_link', ['post_id', 'url'], unique=True)
-    op.create_table('gpu_job',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('image_record_id', sa.Integer(), nullable=False),
-    sa.Column('task', sa.String(length=32), nullable=False),
-    sa.Column('status', sa.String(length=16), server_default='pending', nullable=False),
-    sa.Column('lease_token', sa.String(length=64), nullable=True),
-    sa.Column('leased_at', sa.DateTime(timezone=True), nullable=True),
-    sa.Column('lease_expires_at', sa.DateTime(timezone=True), nullable=True),
-    sa.Column('attempts', sa.Integer(), server_default='0', nullable=False),
-    sa.Column('error', sa.Text(), nullable=True),
-    sa.Column('triage_status', sa.String(length=16), nullable=True),
-    sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.Column('updated_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.ForeignKeyConstraint(['image_record_id'], ['image_record.id'], name=op.f('fk_gpu_job_image_record_id_image_record'), ondelete='CASCADE'),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_gpu_job'))
-    )
-    op.create_index(op.f('ix_gpu_job_image_record_id'), 'gpu_job', ['image_record_id'], unique=False)
-    op.create_index('ix_gpu_job_leased_expires', 'gpu_job', ['lease_expires_at'], unique=False, postgresql_where=sa.text("status = 'leased'"))
-    op.create_index('ix_gpu_job_pending', 'gpu_job', ['id'], unique=False, postgresql_where=sa.text("status = 'pending'"))
-    op.create_index(op.f('ix_gpu_job_status'), 'gpu_job', ['status'], unique=False)
-    op.create_table('image_provenance',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('image_record_id', sa.Integer(), nullable=False),
-    sa.Column('post_id', sa.Integer(), nullable=False),
-    sa.Column('source_id', sa.Integer(), nullable=True),
-    sa.Column('from_attachment_id', sa.Integer(), nullable=True),
-    sa.Column('captured_metadata', sa.JSON(), nullable=True),
-    sa.Column('captured_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.ForeignKeyConstraint(['from_attachment_id'], ['post_attachment.id'], name='fk_image_provenance_from_attachment', ondelete='SET NULL'),
-    sa.ForeignKeyConstraint(['image_record_id'], ['image_record.id'], name=op.f('fk_image_provenance_image_record_id_image_record'), ondelete='CASCADE'),
-    sa.ForeignKeyConstraint(['post_id'], ['post.id'], name=op.f('fk_image_provenance_post_id_post'), ondelete='CASCADE'),
-    sa.ForeignKeyConstraint(['source_id'], ['source.id'], name=op.f('fk_image_provenance_source_id_source'), ondelete='SET NULL'),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_image_provenance')),
-    sa.UniqueConstraint('image_record_id', 'post_id', name='uq_image_provenance_image_post')
-    )
-    op.create_index(op.f('ix_image_provenance_from_attachment_id'), 'image_provenance', ['from_attachment_id'], unique=False)
-    op.create_index(op.f('ix_image_provenance_image_record_id'), 'image_provenance', ['image_record_id'], unique=False)
-    op.create_index(op.f('ix_image_provenance_post_id'), 'image_provenance', ['post_id'], unique=False)
-    op.create_index(op.f('ix_image_provenance_source_id'), 'image_provenance', ['source_id'], unique=False)
-    op.create_table('image_region',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('image_record_id', sa.Integer(), nullable=False),
-    sa.Column('kind', sa.String(length=16), nullable=False),
-    sa.Column('frame_time', sa.Float(), nullable=True),
-    sa.Column('rx', sa.Float(), nullable=False),
-    sa.Column('ry', sa.Float(), nullable=False),
-    sa.Column('rw', sa.Float(), nullable=False),
-    sa.Column('rh', sa.Float(), nullable=False),
-    sa.Column('score', sa.Float(), nullable=True),
-    sa.Column('detector_version', sa.String(length=64), nullable=True),
-    sa.Column('crop_version', sa.String(length=64), nullable=True),
-    sa.Column('embedding_version', sa.String(length=128), nullable=True),
-    sa.Column('ccip_embedding', pgvector.sqlalchemy.vector.VECTOR(dim=768), nullable=True),
-    sa.Column('siglip_embedding', pgvector.sqlalchemy.vector.VECTOR(dim=1152), nullable=True),
-    sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.ForeignKeyConstraint(['image_record_id'], ['image_record.id'], name=op.f('fk_image_region_image_record_id_image_record'), ondelete='CASCADE'),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_image_region'))
-    )
-    op.create_index(op.f('ix_image_region_image_record_id'), 'image_region', ['image_record_id'], unique=False)
-    op.create_table('image_tag',
-    sa.Column('image_record_id', sa.Integer(), nullable=False),
-    sa.Column('tag_id', sa.Integer(), nullable=False),
-    sa.Column('source', sa.String(length=32), server_default='manual', nullable=False),
-    sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.ForeignKeyConstraint(['image_record_id'], ['image_record.id'], name=op.f('fk_image_tag_image_record_id_image_record'), ondelete='CASCADE'),
-    sa.ForeignKeyConstraint(['tag_id'], ['tag.id'], name=op.f('fk_image_tag_tag_id_tag'), ondelete='CASCADE'),
-    sa.PrimaryKeyConstraint('image_record_id', 'tag_id', name=op.f('pk_image_tag'))
-    )
-    op.create_index('ix_image_tag_tag_id', 'image_tag', ['tag_id'], unique=False)
-    op.create_table('import_task',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('batch_id', sa.Integer(), nullable=False),
-    sa.Column('source_path', sa.Text(), nullable=False),
-    sa.Column('task_type', sa.String(length=16), nullable=False),
-    sa.Column('status', sa.String(length=16), server_default='pending', nullable=False),
-    sa.Column('recovery_count', sa.Integer(), server_default='0', nullable=False),
-    sa.Column('refetched', sa.Boolean(), server_default='false', nullable=False),
-    sa.Column('result_image_id', sa.Integer(), nullable=True),
-    sa.Column('error', sa.Text(), nullable=True),
-    sa.Column('size_bytes', sa.BigInteger(), nullable=True),
-    sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.Column('started_at', sa.DateTime(timezone=True), nullable=True),
-    sa.Column('finished_at', sa.DateTime(timezone=True), nullable=True),
-    sa.ForeignKeyConstraint(['batch_id'], ['import_batch.id'], name=op.f('fk_import_task_batch_id_import_batch'), ondelete='CASCADE'),
-    sa.ForeignKeyConstraint(['result_image_id'], ['image_record.id'], name=op.f('fk_import_task_result_image_id_image_record'), ondelete='SET NULL'),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_import_task'))
-    )
-    op.create_index(op.f('ix_import_task_batch_id'), 'import_task', ['batch_id'], unique=False)
-    op.create_index('ix_import_task_created_at_desc', 'import_task', [sa.literal_column('created_at DESC')], unique=False)
-    op.create_index('ix_import_task_result_image_id', 'import_task', ['result_image_id'], unique=False)
-    op.create_index(op.f('ix_import_task_status'), 'import_task', ['status'], unique=False)
-    op.create_table('presentation_review',
-    sa.Column('image_record_id', sa.Integer(), nullable=False),
-    sa.Column('tag_id', sa.Integer(), nullable=False),
-    sa.Column('conflict_tag_id', sa.Integer(), nullable=True),
-    sa.Column('conflict_score', sa.Float(), nullable=False),
-    sa.Column('mode', sa.String(length=16), server_default='chrome', nullable=False),
-    sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.Column('resolved_at', sa.DateTime(timezone=True), nullable=True),
-    sa.ForeignKeyConstraint(['conflict_tag_id'], ['tag.id'], name=op.f('fk_presentation_review_conflict_tag_id_tag'), ondelete='SET NULL'),
-    sa.ForeignKeyConstraint(['image_record_id'], ['image_record.id'], name=op.f('fk_presentation_review_image_record_id_image_record'), ondelete='CASCADE'),
-    sa.ForeignKeyConstraint(['tag_id'], ['tag.id'], name=op.f('fk_presentation_review_tag_id_tag'), ondelete='CASCADE'),
-    sa.PrimaryKeyConstraint('image_record_id', 'tag_id', name=op.f('pk_presentation_review'))
-    )
-    op.create_index('ix_presentation_review_conflict_tag_id', 'presentation_review', ['conflict_tag_id'], unique=False)
-    op.create_index('ix_presentation_review_resolved_at', 'presentation_review', ['resolved_at'], unique=False)
-    op.create_index('ix_presentation_review_tag_id', 'presentation_review', ['tag_id'], unique=False)
-    op.create_table('series_page',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('series_tag_id', sa.Integer(), nullable=False),
-    sa.Column('image_id', sa.Integer(), nullable=False),
-    sa.Column('status', sa.String(length=16), server_default='placed', nullable=False),
-    sa.Column('page_number', sa.Integer(), nullable=True),
-    sa.Column('stated_page', sa.Integer(), nullable=True),
-    sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.Column('updated_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.ForeignKeyConstraint(['image_id'], ['image_record.id'], name=op.f('fk_series_page_image_id_image_record'), ondelete='CASCADE'),
-    sa.ForeignKeyConstraint(['series_tag_id'], ['tag.id'], name=op.f('fk_series_page_series_tag_id_tag'), ondelete='CASCADE'),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_series_page')),
-    sa.UniqueConstraint('image_id', name='uq_series_page_image')
-    )
-    op.create_index(op.f('ix_series_page_series_tag_id'), 'series_page', ['series_tag_id'], unique=False)
-    op.create_table('tag_positive_confirmation',
-    sa.Column('image_record_id', sa.Integer(), nullable=False),
-    sa.Column('tag_id', sa.Integer(), nullable=False),
-    sa.Column('confirmed_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.ForeignKeyConstraint(['image_record_id'], ['image_record.id'], name=op.f('fk_tag_positive_confirmation_image_record_id_image_record'), ondelete='CASCADE'),
-    sa.ForeignKeyConstraint(['tag_id'], ['tag.id'], name=op.f('fk_tag_positive_confirmation_tag_id_tag'), ondelete='CASCADE'),
-    sa.PrimaryKeyConstraint('image_record_id', 'tag_id', name=op.f('pk_tag_positive_confirmation'))
-    )
-    op.create_index(op.f('ix_tag_positive_confirmation_tag_id'), 'tag_positive_confirmation', ['tag_id'], unique=False)
-    op.create_table('tag_suggestion_rejection',
-    sa.Column('image_record_id', sa.Integer(), nullable=False),
-    sa.Column('tag_id', sa.Integer(), nullable=False),
-    sa.Column('rejected_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.ForeignKeyConstraint(['image_record_id'], ['image_record.id'], name='fk_tsr_image_record_id_image_record', ondelete='CASCADE'),
-    sa.ForeignKeyConstraint(['tag_id'], ['tag.id'], name='fk_tsr_tag_id_tag', ondelete='CASCADE'),
-    sa.PrimaryKeyConstraint('image_record_id', 'tag_id', name=op.f('pk_tag_suggestion_rejection'))
-    )
-    op.create_index('ix_tag_suggestion_rejection_tag', 'tag_suggestion_rejection', ['tag_id'], unique=False)
-    op.create_table('character_prototype',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('tag_id', sa.Integer(), nullable=False),
-    sa.Column('ccip_embedding', pgvector.sqlalchemy.vector.VECTOR(dim=768), nullable=False),
-    sa.Column('region_id', sa.Integer(), nullable=True),
-    sa.ForeignKeyConstraint(['region_id'], ['image_region.id'], name=op.f('fk_character_prototype_region_id_image_region'), ondelete='SET NULL'),
-    sa.ForeignKeyConstraint(['tag_id'], ['tag.id'], name=op.f('fk_character_prototype_tag_id_tag'), ondelete='CASCADE'),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_character_prototype'))
-    )
-    op.create_index(op.f('ix_character_prototype_region_id'), 'character_prototype', ['region_id'], unique=False)
-    op.create_index(op.f('ix_character_prototype_tag_id'), 'character_prototype', ['tag_id'], unique=False)
-    op.create_table('series_chapter',
-    sa.Column('id', sa.Integer(), nullable=False),
-    sa.Column('series_tag_id', sa.Integer(), nullable=False),
-    sa.Column('anchor_page_id', sa.Integer(), nullable=False),
-    sa.Column('title', sa.Text(), nullable=True),
-    sa.Column('stated_part', sa.Integer(), nullable=True),
-    sa.Column('created_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.Column('updated_at', sa.DateTime(timezone=True), server_default=sa.text('now()'), nullable=False),
-    sa.ForeignKeyConstraint(['anchor_page_id'], ['series_page.id'], name='fk_series_chapter_anchor_page', ondelete='CASCADE'),
-    sa.ForeignKeyConstraint(['series_tag_id'], ['tag.id'], name=op.f('fk_series_chapter_series_tag_id_tag'), ondelete='CASCADE'),
-    sa.PrimaryKeyConstraint('id', name=op.f('pk_series_chapter')),
-    sa.UniqueConstraint('anchor_page_id', name='uq_series_chapter_anchor_page')
-    )
-    op.create_index(op.f('ix_series_chapter_series_tag_id'), 'series_chapter', ['series_tag_id'], unique=False)
-
-    # The singleton settings rows. NOT schema — see the note above; the app
-    # reads these with scalar_one() and never creates them, so a fresh
-    # install without these two rows raises NoResultFound on first use.
-    # From 0002 and 0003.
-    op.execute("INSERT INTO import_settings (id) VALUES (1)")
-    op.execute("INSERT INTO ml_settings (id) VALUES (1)")
-
-    # The three hygiene system tags, from 0075. These are PRODUCT data, not
-    # operator configuration — 0075's own docstring says so: "the fix keys on
-    # SYSTEM tags the product ships". The presentation and process auto-apply
-    # sweeps look them up with scalar_one(), so without these rows those
-    # features raise NoResultFound rather than degrading.
-    #
-    # 0075 adopted an existing same-name general tag before inserting, because
-    # an operator might already have tagged `wip` by hand. That cannot happen
-    # on the empty database this file runs against, but the guard is kept: it
-    # costs nothing and makes the statement safe to re-run.
-    for _name in ("wip", "banner", "editor screenshot"):
-        op.execute(
-            sa.text(
-                "INSERT INTO tag (name, kind, is_system) "
-                "SELECT :name, 'general', true WHERE NOT EXISTS ("
-                "  SELECT 1 FROM tag WHERE lower(name) = lower(:name)"
-                ")"
-            ).bindparams(name=_name)
-        )
-
-
-def downgrade() -> None:
-    """Deliberately not implemented.
-
-    Downgrading a baseline means dropping every table in the database. That is
-    not a migration, and offering it as one invites someone to run it. Restore
-    from a backup instead.
-    """
-    raise NotImplementedError(
-        "0089 is the baseline; there is nothing below it. Restore from a backup."
-    )

alembic/versions/0090_service_seen.py

@@ -1,64 +0,0 @@
-"""service_seen — the learned roster that makes a stopped part observable.
-
-Milestone 365. Nothing in FabledCurator knew what was SUPPOSED to be running:
-`celery inspect` reports the workers that answer, so a dead worker was a
-shorter list rather than a red light, and the only surface that could tell an
-operator otherwise was Portainer. This table is the memory that turns an
-absence into something the app can see.
-
-Keyed on the queue set for a celery role and on agent_id for the GPU agent —
-NOT on the celery worker name, which here is `celery@<container id>` and is
-minted fresh on every deploy. See the model docstring for why that choice is
-the whole design.
-
-## First migration on the collapsed baseline
-
-0089 is the single generated baseline that replaced revisions 0001..0089
-(milestone 328). This is the first revision written on top of it, so it is
-also the first evidence that the chain steps forward from the collapse rather
-than merely reproducing the schema — which nothing had demonstrated yet.
-
-An existing install is at 0089 because it ran the real 0089; a fresh one is at
-0089 because it ran the baseline. Both arrive here identically, which was the
-property the collapse was designed around.
-
-Revision ID: 0090
-Revises: 0089
-Create Date: 2026-09-02
-
-"""
-from typing import Sequence, Union
-
-import sqlalchemy as sa
-from alembic import op
-
-revision: str = "0090"
-down_revision: Union[str, None] = "0089"
-branch_labels: Union[str, Sequence[str], None] = None
-depends_on: Union[str, Sequence[str], None] = None
-
-
-def upgrade() -> None:
-    op.create_table(
-        "service_seen",
-        sa.Column("key", sa.String(length=128), nullable=False),
-        sa.Column("kind", sa.String(length=16), nullable=False),
-        sa.Column("display_name", sa.String(length=64), nullable=False),
-        sa.Column(
-            "first_seen_at", sa.DateTime(timezone=True),
-            server_default=sa.text("now()"), nullable=False,
-        ),
-        sa.Column(
-            "last_seen_at", sa.DateTime(timezone=True),
-            server_default=sa.text("now()"), nullable=False,
-        ),
-        sa.Column("details", sa.JSON(), nullable=False),
-        sa.PrimaryKeyConstraint("key", name=op.f("pk_service_seen")),
-    )
-    # No secondary indexes, deliberately: one row per moving part means every
-    # read is a handful of rows and an index would be write cost buying
-    # nothing (#3301 removed seven of exactly that shape).
-
-
-def downgrade() -> None:
-    op.drop_table("service_seen")

backend/app/api/__init__.py

@@ -38,7 +38,6 @@ def all_blueprints() -> list[Blueprint]:
     from .suggestions import suggestions_bp
     from .system_activity import system_activity_bp
     from .system_backup import system_backup_bp
-    from .system_health import system_health_bp
     from .tags import tags_bp
     from .thumbnails import thumbnails_bp
     return [
@@ -52,7 +51,6 @@ def all_blueprints() -> list[Blueprint]:
         showcase_bp,
         settings_bp,
         system_activity_bp,
-        system_health_bp,
         system_backup_bp,
         admin_bp,
         cleanup_bp,

backend/app/api/gpu.py

@@ -21,7 +21,6 @@ from ..services.gallery_service import image_url
 from ..services.ml.gpu_jobs import GpuJobService, error_dedupe_statements
 from ..services.ml.gpu_triage import classify_reason, recover_defective_image
 from ..services.ml.regions import RegionService
-from ..services.service_roster import touch_service
 
 gpu_bp = Blueprint("gpu", __name__, url_prefix="/api/gpu")
 
@@ -257,18 +256,6 @@ async def lease():
         if not await _agent_authed(session):
             return jsonify({"error": "unauthorized"}), 401
         jobs = await GpuJobService(session).lease(agent_id, batch_size=batch)
-        # The agent cannot be polled — it is HTTP-only and pulls from here, so
-        # web never dials it. A lease IS the check-in, and until milestone 365
-        # it was thrown away: an agent sitting idle with nothing to lease left
-        # no trace at all and was indistinguishable from one switched off a
-        # week ago. Recorded on the call that was already happening.
-        await touch_service(
-            session,
-            key=f"agent:{agent_id}",
-            kind="agent",
-            display_name="GPU agent" if agent_id == "agent" else f"GPU agent ({agent_id})",
-            details={"agent_id": agent_id, "last_call": "lease", "leased": len(jobs)},
-        )
         ml = await MLSettings.load(session)
         # image rows for url/mime in one shot
         ids = [j.image_record_id for j in jobs]
@@ -342,13 +329,6 @@ async def heartbeat():
         if not await _agent_authed(session):
             return jsonify({"error": "unauthorized"}), 401
         n = await GpuJobService(session).heartbeat(agent_id, job_ids)
-        await touch_service(
-            session,
-            key=f"agent:{agent_id}",
-            kind="agent",
-            display_name="GPU agent" if agent_id == "agent" else f"GPU agent ({agent_id})",
-            details={"agent_id": agent_id, "last_call": "heartbeat", "extended": n},
-        )
         await session.commit()
     return jsonify({"extended": n})
 

backend/app/api/system_health.py

@@ -1,192 +0,0 @@
-"""Is every part of FabledCurator running? One verdict, one endpoint.
-
-Milestone 365. The nav indicator and the System page both read this and
-nothing else — composing a verdict is this module's job, not the UI's.
-
-## Two kinds of part, answered two different ways
-
-**Learned** — celery roles and the GPU agent, from `service_seen`. The
-question is "how long since it checked in", and these are the parts that can
-be ABSENT, which is the whole point: `celery inspect` alone reports presence,
-so a dead worker is a shorter list rather than a red light.
-
-**Probed live** — Postgres and Redis. Always expected, never learned, and a
-last-seen for them would be actively misleading: that Redis answered thirty
-seconds ago says nothing about now.
-
-## This endpoint must never fail because something it checks has failed
-
-The inversion is easy to write by accident and it destroys the feature exactly
-when it is needed — a 500 when Redis is down, instead of `redis: down`. Every
-probe is wrapped, every wait has a deadline (rule 156), and the roster refresh
-swallows its own errors. The worst case is a part reported `unknown`, which is
-a true statement.
-"""
-
-from __future__ import annotations
-
-import asyncio
-import logging
-import time
-from datetime import UTC, datetime
-
-from quart import Blueprint, jsonify
-from sqlalchemy import select, text
-
-from ..config import get_config
-from ..extensions import get_session
-from ..models import ServiceSeen
-from ..services.service_roster import refresh_if_stale
-
-log = logging.getLogger(__name__)
-
-system_health_bp = Blueprint("system_health", __name__, url_prefix="/api/system")
-
-# How long a learned part may go quiet before it is doubted, then disbelieved.
-#
-# These are deliberately generous, and the reason is a deploy rather than a
-# worker: `docker compose up -d` rolls start-first, so a role is briefly served
-# by two containers and then by neither while the old one drains. Thresholds
-# tight enough to catch a crash in seconds would paint the page red every time
-# the stack is updated, and an alarm that cries wolf on every deploy is one
-# nobody reads. Tune down only after watching a real deploy pass through.
-STALE_AFTER_SECONDS = 90
-DOWN_AFTER_SECONDS = 300
-
-# Probes cross a process boundary, so they carry deadlines. A hung Postgres
-# must make this endpoint say "postgres: down", not hang alongside it.
-PROBE_TIMEOUT_SECONDS = 2.0
-
-_OK, _STALE, _DOWN, _UNKNOWN = "ok", "stale", "down", "unknown"
-
-# Worst-first, so an overall verdict is just the max.
-_SEVERITY = {_OK: 0, _UNKNOWN: 1, _STALE: 2, _DOWN: 3}
-
-
-def _age_state(age_seconds: float) -> str:
-    if age_seconds >= DOWN_AFTER_SECONDS:
-        return _DOWN
-    if age_seconds >= STALE_AFTER_SECONDS:
-        return _STALE
-    return _OK
-
-
-def _describe_learned(name: str, state: str, age: float, details: dict) -> str:
-    """Say what the state MEANS. A red chip tells an operator less than a
-    sentence does at the moment they are deciding whether to go and look."""
-    if state == _OK:
-        replicas = details.get("replicas")
-        if replicas and replicas > 1:
-            return f"{name} is running ({replicas} replicas)"
-        return f"{name} is running"
-    mins = int(age // 60)
-    ago = f"{mins} min" if mins else f"{int(age)}s"
-    if state == _STALE:
-        return f"{name} has not checked in for {ago}"
-    return f"{name} has not checked in for {ago} — treat it as stopped"
-
-
-async def _probe_postgres(session) -> dict:
-    started = time.monotonic()
-    try:
-        await asyncio.wait_for(
-            session.execute(text("SELECT 1")), timeout=PROBE_TIMEOUT_SECONDS
-        )
-    except Exception as exc:  # noqa: BLE001 — a probe reports, it never raises
-        return {
-            "key": "postgres", "kind": "datastore", "name": "PostgreSQL",
-            "state": _DOWN, "detail": f"not answering: {type(exc).__name__}",
-        }
-    return {
-        "key": "postgres", "kind": "datastore", "name": "PostgreSQL", "state": _OK,
-        "detail": "answering", "latency_ms": round((time.monotonic() - started) * 1000, 1),
-    }
-
-
-def _ping_redis_sync() -> None:
-    import redis  # local import; mirrors system_activity's pattern
-
-    client = redis.Redis.from_url(
-        get_config().celery_broker_url,
-        socket_connect_timeout=PROBE_TIMEOUT_SECONDS,
-        socket_timeout=PROBE_TIMEOUT_SECONDS,
-    )
-    client.ping()
-
-
-async def _probe_redis() -> dict:
-    started = time.monotonic()
-    try:
-        await asyncio.wait_for(
-            asyncio.to_thread(_ping_redis_sync), timeout=PROBE_TIMEOUT_SECONDS * 2
-        )
-    except Exception as exc:  # noqa: BLE001
-        return {
-            "key": "redis", "kind": "datastore", "name": "Redis",
-            "state": _DOWN,
-            "detail": f"not answering: {type(exc).__name__} — queues and workers "
-                      f"cannot be reached either",
-        }
-    return {
-        "key": "redis", "kind": "datastore", "name": "Redis", "state": _OK,
-        "detail": "answering", "latency_ms": round((time.monotonic() - started) * 1000, 1),
-    }
-
-
-@system_health_bp.route("/health", methods=["GET"])
-async def system_health():
-    """Every part, its state, and one overall verdict.
-
-    Response: {overall, parts: [{key, kind, name, state, detail, last_seen_at,
-    …}], checked_at}
-    """
-    parts: list[dict] = []
-    now = datetime.now(UTC)
-
-    async with get_session() as session:
-        # Postgres first, and if it is unreachable nothing else can be read —
-        # say so rather than failing, because "the database is down" is the
-        # single most useful thing this endpoint can ever report.
-        pg = await _probe_postgres(session)
-        parts.append(pg)
-
-        if pg["state"] == _OK:
-            # Rate-limited inside; see service_roster on why the web process
-            # is the right observer.
-            try:
-                await refresh_if_stale(session)
-                await session.commit()
-            except Exception:  # noqa: BLE001
-                log.warning("system health: roster refresh failed", exc_info=True)
-
-            rows = (
-                await session.execute(select(ServiceSeen).order_by(ServiceSeen.display_name))
-            ).scalars().all()
-            for row in rows:
-                age = (now - row.last_seen_at).total_seconds()
-                state = _age_state(age)
-                parts.append({
-                    "key": row.key,
-                    "kind": row.kind,
-                    "name": row.display_name,
-                    "state": state,
-                    "detail": _describe_learned(row.display_name, state, age, row.details or {}),
-                    "last_seen_at": row.last_seen_at.isoformat(),
-                    "first_seen_at": row.first_seen_at.isoformat(),
-                    **{k: v for k, v in (row.details or {}).items() if k != "agent_id"},
-                })
-
-    parts.append(await _probe_redis())
-
-    overall = max((p["state"] for p in parts), key=lambda s: _SEVERITY[s], default=_UNKNOWN)
-    return jsonify({
-        "overall": overall,
-        "parts": sorted(parts, key=lambda p: (-_SEVERITY[p["state"]], p["name"])),
-        "checked_at": now.isoformat(),
-        # So the UI can explain a `stale` without hard-coding the same numbers
-        # in a second place.
-        "thresholds": {
-            "stale_after_seconds": STALE_AFTER_SECONDS,
-            "down_after_seconds": DOWN_AFTER_SECONDS,
-        },
-    })