- Settings → Maintenance gains a "Database maintenance" card: a "Run VACUUM
ANALYZE now" button (enqueues the maintenance task) plus a per-table bloat
readout (live/dead/dead%/last vacuum) from /api/admin/maintenance/db-stats.
- dbMaintenance store (loadStats / runVacuum) + test.
- Fix ruff I001: combine the two _sync_engine imports onto one line.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Five small G5 findings from the 2026-06-02 audit. Each is local and
follows an established FC pattern.
- download_service: replace hardcoded ('discord','pixiv') tuple with
auth_type_for(platform) == 'token'. A 7th token-platform now picks
up the right credential path without touching this site.
- /api/tags/<source_id>/merge enqueues recompute_centroid.delay after
merge so the target's centroid reflects its new image set
immediately. Daily list_drifted catches it within 24h, but eager
recompute closes the suggestion-quality dip in the meantime.
- backfill_thumbnails added to beat_schedule (daily). The task
docstring claimed periodic Beat but the entry was never registered,
so the library got no self-healing thumbnail repair; only the
manual admin-UI button fired it.
- modal.createAndAdd pushes a kind='fandom' tag into
tagsStore.fandomCache so FandomPicker sees the new fandom on next
open. Was: cache-gated load (length===0) skipped refetch, new
fandom invisible until full page reload.
- cleanup cluster:
- Drop .webp from cleanup_service.unlink — thumbnailer only writes
.jpg/.png; the third tuple member was dead code.
- Drop effective_date from /api/gallery/scroll response — no FE
consumer reads it. Service still computes the attribute for
timeline ordering; this just trims the JSON.
- Rename store.recentMinute → store.recentRuns across the
systemActivity store + three consumers (SystemActivitySummary,
QueuesTable, SystemActivityTab). The data is the last 200 runs
(not actually "last minute"), so the name lied.
NOT in this bundle: the duplicate tag-merge endpoint
(/api/tags vs /api/admin/tags) is harder — has 1 FE caller and 3 tests
on the admin variant; consolidation is its own change.
Two coupled problems, operator-flagged 2026-06-01: "missing thumbnails
but triggering backfill found nothing."
1. **Backfill UI was a black box.** `POST /api/thumbnails/backfill`
returned just `{celery_task_id}` and the admin card said
"Enqueued." with no counts. There was no way to tell whether the
scan found 0 candidates, 5000 candidates, or whether the worker
even picked up the task. "Found nothing" was indistinguishable
from a broken queue.
Fix: refactor the scan into a sync helper (`_run_backfill_scan`)
shared by the Celery task and the API endpoint. The API now runs
the scan in an executor and returns `{scanned, enqueued, ok,
regenerated}`. The actual thumbnail generation work still goes
to the thumbnail Celery queue per row via
`generate_thumbnail.delay()` — the scan itself is fast
(SELECT id+thumbnail_path + a file.stat() per row).
2. **`_thumb_is_valid` accepted header-only corrupt files.** The
magic-byte check passed for any 8-byte file starting with a JPEG
or PNG header, including empty/truncated/zero-pad files that
browsers render as broken. Backfill counted these as `ok` and
never regenerated.
Fix: also require file size ≥ MIN_THUMB_BYTES (256). Real
thumbnails are minimum ~2KB even on solid-color sources; header-
only corrupt files top out around 12 bytes. 256 is well above
the corrupt floor and well below any legitimate thumbnail.
Plus the admin card now shows the per-run counts instead of
"Enqueued.":
Scanned 5,432 · enqueued 3 (2 regenerated) · 5,429 ok
Four coupled operator-asked changes to the view modal (Scribe plan #509):
1. **Autofocus tag entry on modal open** — TagAutocomplete grabs focus
in onMounted/nextTick so the caret is in the input the moment the
modal renders. No click needed to start typing.
2. **General suggestions expanded by default** — SuggestionsPanel's
general-category group now mounts with `:default-open="true"`.
Operator can collapse if too noisy, but the v1 frame shows them.
3. **Lower general threshold default 0.95 → 0.50** — MLSettings.
suggestion_threshold_general default matches character. Alembic
0029 also bumps the existing singleton row's value if it's still
at the old 0.95. Operator can re-tune from Settings → ML.
4. **Retire `copyright` + `artist` as ML suggestion categories** —
neither feeds a Tag.kind (`artist` retired in FC-2d-vii-c, never
really existed as a copyright tag-kind). They were surfaced in the
suggestions pipeline + threshold settings UI but had no follow-
through. Drop from SURFACED_CATEGORIES, suggestions._threshold_for,
ml_admin GET/PATCH allowlist, MLSettings columns (alembic 0029
drops the two columns), frontend CATEGORY_ORDER + CATEGORY_LABELS,
SuggestionsPanel.peopleCats, AliasPickerDialog kind-check, and
MLThresholdSliders rows.
Out of scope (intentional): `tag_kind` Postgres enum still includes
`artist` for historic Tag row queryability (per the model comment);
no operator pain reported, no enum-shrink needed.
Tests:
- test_surfaced_categories asserts {character, general}, excludes
artist + copyright.
- test_threshold_for_artist_is_unsurfaced extended to cover copyright.
- test_get_and_patch_settings asserts new 0.50 default and the absent
artist + copyright keys in the GET payload.
Each maintenance button (ML backfill, centroid recompute → ml queue;
thumbnail backfill → thumbnail queue) now shows a status bar with the live
pending count for its Celery queue, so the operator can see work is already
queued/running before re-triggering and piling on. MaintenancePanel polls
/api/system/activity/queues every 4s; QueueStatusBar reads the depth and
turns warning-colored when the queue is busy.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Operator-confirmed 2026-05-28: the BlenderKnight:* tags are `archive`
kind (caught by the kind purge), but the `source:patreon`-style tags
are IR's old `source` kind that fell back to `general` during migration
(FC's enum has no `source` kind) — so they can't be matched by kind.
Broadened the purge to a two-rule match and renamed it for accuracy
(all dev-only, unreleased):
- cleanup_service.purge_tags_by_kind → purge_legacy_tags. Predicate is
now `kind IN (archive, post, artist) OR name LIKE 'source:%'`
(LEGACY_NAME_PREFIXES). Preview classifies each row into by_kind OR
by_prefix (source:* counts once under the prefix bucket regardless of
its general kind).
- endpoint /tags/purge-retired-kinds → /tags/purge-legacy. dry-run
returns by_kind + by_prefix + count + sample.
- store purgeRetiredKindTags → purgeLegacyTags.
- Tag Maintenance card copy + breakdown updated to show both buckets;
button reads "Preview/Delete legacy tags".
Tests updated + extended: dry-run reports by_kind {archive,post,artist}
AND by_prefix {source:*}, plain general/character tags survive; commit
deletes both the kind-matched and source:*-matched rows and leaves the
rest.
Operator-flagged 2026-05-28, two asks.
**1. Provenance posts ate the panel.** Each post card rendered its full
description (180px scroll box) inline, so a few posts pushed everything
else off-screen. ProvenancePanel now collapses the description by
default behind a per-post "Show description ▾ / Hide ▴" toggle (state
keyed by provenance_id, reset when the viewed image changes). Cards stay
compact — platform/date/title/meta/actions — and the operator expands
only the descriptions they want.
**2. Purge tags of retired/system kinds.** The IR migration left
`archive`/`post`/`artist`-kind tags (e.g. `BlenderKnight:Hannah_BJ_Loops`)
that FC no longer creates — the tag input only makes
character/fandom/series/general, and provenance + artists are their own
systems now. (meta/rating were already hard-deleted by alembic 0023.)
- cleanup_service.purge_tags_by_kind(kinds=PURGEABLE_TAG_KINDS) — counts
(dry_run) or deletes tags whose kind ∈ (archive, post, artist).
CASCADE clears the image_tag / alias / allowlist / etc. rows.
- POST /api/admin/tags/purge-retired-kinds (Tier-A, dry-run preview
returns per-kind counts + sample names — the preview IS the
verification of exactly what'll be deleted before committing).
- Tag Maintenance card gets a second section: "Preview retired-kind
tags" → per-kind breakdown + sample → "Delete N retired-kind tag(s)".
Tests: dry-run counts by kind (general survives), commit deletes only
the retired kinds (general + character survive, retired count → 0).
NOTE: a dry-run preview will show exactly which kinds/counts are
present. If the operator's noisy tags turn out to be `general` (e.g. an
IR `source:patreon` that fell back to general during migration), they
won't be caught by the kind purge — the preview makes that visible so
we can decide on a name-based pass separately.
Layer 2 — remediate a corrupt file by re-fetching a fresh copy from its
source, bounded to a single attempt. Operator-requested 2026-05-28.
New backend/app/services/refetch_service.py:
- resolve_refetch_source: parse the failed file's sidecar → platform,
derive the artist from the import path, find an ENABLED Source with a
real feed URL for (artist, platform). Returns None for filesystem-only
imports, missing sidecars, or `sidecar:<platform>:<slug>` synthetic
anchors (not pollable).
- attempt_refetch: if not already refetched AND a Source resolves,
delete the corrupt file (so gallery-dl's skip_existing re-fetches it),
set ImportTask.refetched=True, and trigger ONE download_source
re-check. Bounded by `refetched` so source-side corruption can't loop.
Wiring:
- Manual endpoint POST /api/import/tasks/<id>/refetch (only on 'failed'
tasks). Returns refetch_queued / no_source / already_refetched /
not_found / not_failed.
- Auto path in recover_interrupted_tasks: for each poison-pill row, if
env FC_AUTO_REFETCH_CORRUPT=1, attempt_refetch (default OFF — the
manual button is the primary path; auto is opt-in since re-fetch
deletes a file + re-runs the downloader).
- Frontend: a cloud-refresh icon button on failed rows in ImportTaskList
→ stores.import.refetchTask → toast keyed on the result status.
Filesystem imports with no upstream return no_source — the operator's
only remediation there is replacing the file on disk, surfaced clearly
in the toast.
Tests: 404 unknown task, 400 non-failed task, no_source when
unresolvable, and the full resolvable-source path (file deleted,
refetched flag set, one download_source dispatched, second call is a
no-op). The resolvable test repoints the migration-seeded
import_settings(id=1) scan path rather than inserting a conflicting row.
Replaces the three top-level routes with a single `/subscriptions` parent
owning the whole download-pipeline domain. Internal tab state via `?tab=`
query param, mirroring ArtistView's pattern. TopNav auto-drops the two
removed entries (route-driven via meta.title). Bookmark-safe redirects
from `/credentials` and `/downloads` route into the appropriate subtab.
**Subtab 1 — Subscriptions (default).** Carries over the existing
artist-grouped expandable table; adds (a) status filter dropdown, (b)
bulk-select column with Enable/Disable/Delete-all actions, (c) GS-style
color-coded `PlatformChip` per distinct platform in the collapsed row.
Reuses SourceRow, SourceHealthDot, SourceFormDialog, ArtistCreateDialog.
**Subtab 2 — Downloads.** Full GS dashboard. Five colored stat chips up
top (Queued/Running/Completed/Failed/Skipped, sourced from new
`GET /api/downloads/stats?window_hours=`). Popover-style filter UI
(Status/Source/FromDate/ToDate) with active-filter pills below.
Maintenance menu wraps existing /api/import/retry-failed and
/api/import/clear-stuck endpoints; Export-failed-logs item disabled with
a "v2" tooltip. Per-row Retry preserved via existing DownloadEventRow.
**Subtab 3 — Settings.** Four sections: ExtensionKeyBar (top), GS-style
per-platform CredentialCard grid (md=6 v-row/v-col, dashed border if
unset / accent border if set, expandable how-to panel), Downloader card
(rate limit, validate_files), Schedule defaults card (default interval,
event retention, failure warning threshold). The Downloader and Schedule
sections were extracted out of components/settings/ImportFiltersForm.vue
— SettingsView's Import tab now owns only image-import filters.
**Backend:** new `GET /api/downloads/stats` returns
{pending, running, ok, error, skipped} count grouped by status over the
configurable window. Status keys stay raw from the ENUM; UI does the
display-label mapping. Two integration tests pin the response shape +
window_hours validation.
**Util:** `frontend/src/utils/platformColor.js` — single source of truth
for the six platforms' color + icon + label, mirroring GS's palette
(patreon=red mdi-patreon, subscribestar=amber mdi-star,
hentaifoundry=purple mdi-palette, discord=indigo mdi-discord,
pixiv=blue mdi-alpha-p-box, deviantart=green mdi-deviantart). Unknown
platform falls back to grey + mdi-web.
Deferred (explicit non-goals): subscription import/export, "Trigger Due
Now" scheduler-tick button (needs new backend endpoint), Export Failed
Logs CSV dump.
Operator hit 3 large PNGs stuck in 'processing' for 2 days 2026-05-25:
the existing recover_interrupted_tasks flips processing > 5min back to
queued + .delay(), but if the underlying file is unfixably broken (e.g.,
PIL OSError, also patched in 68cffce), the loop never terminates and the
'Scanning...' banner sticks at 0/0 forever blocking new scans.
/api/import/clear-stuck:
- Flips every task in pending/queued/processing to 'failed' with a clear
marker error message
- Finalizes any 'running' ImportBatch that has no remaining active children
- Idempotent + non-destructive: rows survive, can be retried once the
underlying cause is resolved
UI button 'Clear stuck...' sits next to 'Retry failed' / 'Clear completed'
with a warning-tonal alert in the confirm dialog explaining what it does
and recommending Retry failed once the cause is fixed.
Tests: clears mixed non-terminal states, untouches complete rows,
finalizes orphan batch, no-op when nothing stuck.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
MaintenancePanel hosts: backfill + centroid recompute trigger cards,
the five suggestion-threshold sliders (autosave on slider release),
the allowlist table (inline editable min_confidence, delete), and the
alias table (mapping display, delete). Wired as a third Settings tab,
ML settings loaded lazily when the tab opens.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
ImportTriggerPanel shows an active-batch progress indicator when scan_directory
is running, or a "Quick scan" button otherwise. Deep scan deferred to FC-2d
is called out in the panel text so it's not a surprise.
ImportFiltersForm autosaves on blur/change so there's no Submit button. The
transparency and single-color sliders gate on their respective switches.
ImportTaskList uses v-data-table-virtual for performance on long histories,
with status filter, retry-failed, and a clear-completed dialog with age
buckets. Status chips are color-coded via FabledDesignSystem semantic
tokens (success/warning/error/accent/info).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Overview tab shows total images/tags/storage/pending/failed using
Fraunces for the big numbers. Inline alert nudges the operator to the
Import tab when pending tasks exist. Polls /api/system/stats every 5s
while the tab is visible (pauses when the document is hidden).
Import tab references three placeholders (TriggerPanel/FiltersForm/
TaskList); real implementations land in Task 15.
Router replaces the placeholder view for /settings with SettingsView.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
bvandeusen