fix: the Latest feed's filter dropdowns opened empty

Operator: "the filters in the latest feed, drop down but don't have values". Two separate causes:

- Platform: PostsFilterBar built its items from `platformsStore.platforms`. The platforms store has never had that property; it exposes `list` and `byKey`. The read returned undefined, `|| []` turned that into an empty list, and nothing failed. ArtistsView had copied the same read, so the Browse → Artists platform filter was empty too. Both now read `list` and show platform names rather than raw keys.

- Artist: the autocomplete searched the server only after something was typed (autocomplete returns [] for an empty query by design, which its tests pin). Opening the dropdown therefore showed an empty menu. PostsFilterBar now loads every artist once from a new lightweight `GET /api/artists/names` (id, name, slug; alphabetical; no joins) and filters client-side, so the list is there on open. A deep-linked artist_id now also shows the artist's real name instead of "Artist #id".

Guard: frontend/test/storeUsage.spec.js scans src for `platformsStore.<name>` and fails on any name the store doesn't define, since the frontend CI has no type-checker to catch this. A positive control shows the shipped `platformsStore.platforms` read is flagged, and a vacuity check confirms the scan really walks the tree.

tests/test_api_artists_create.py covers /names.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01SHQB1YukL3VyvMK8rcbmV9

backend/app/api/admin.py

@@ -475,6 +475,20 @@ async def trigger_reclaim_attachments():
     return _queued(async_result)
 
 
+@admin_bp.route("/maintenance/repair-discord-downloads", methods=["POST"])
+async def trigger_repair_discord_downloads():
+    """Clean re-download of the Discord files broken by the `None` naming
+    (#3999). Body {"dry_run": bool}; dry_run is the DEFAULT, because the apply
+    deletes files and makes gallery-dl forget every Discord download. Returns the
+    Celery task id — poll /maintenance/task-result/<id> for the summary."""
+    from ..tasks.admin import repair_discord_downloads_task
+
+    body = await request.get_json(silent=True) or {}
+    dry_run = bool(body.get("dry_run", True))
+    async_result = repair_discord_downloads_task.delay(dry_run=dry_run)
+    return _queued(async_result)
+
+
 @admin_bp.route("/maintenance/dedup-videos", methods=["POST"])
 async def trigger_dedup_videos():
     """Tier-1 video dedup (#871). Body {"dry_run": bool}: dry_run=true previews

backend/app/api/artists.py

@@ -65,6 +65,16 @@ async def autocomplete():
     ])
 
 
+@artists_bp.route("/names", methods=["GET"])
+async def names():
+    """Every artist, id + name + slug, alphabetical. For filter pickers that
+    list artists before anything is typed; `autocomplete` deliberately returns
+    nothing for an empty query."""
+    async with get_session() as session:
+        rows = await ArtistService(session).all_names()
+    return jsonify([{"id": i, "name": n, "slug": s} for i, n, s in rows])
+
+
 @artists_bp.route("/directory", methods=["GET"])
 async def directory():
     """FC-3f: cursor-paginated artists directory.

backend/app/services/artist_service.py

@@ -300,6 +300,18 @@ class ArtistService:
         await self.session.commit()
         return artist
 
+    async def all_names(self) -> list[tuple[int, str, str]]:
+        """Every artist as (id, name, slug), alphabetical.
+
+        For pickers that should show a full list before anything is typed (the
+        Latest feed's artist filter). Three columns and no joins, so it stays
+        cheap on a library of thousands of artists.
+        """
+        rows = (await self.session.execute(
+            select(Artist.id, Artist.name, Artist.slug).order_by(func.lower(Artist.name))
+        )).all()
+        return [(r.id, r.name, r.slug) for r in rows]
+
     async def autocomplete(self, prefix: str, limit: int = 20) -> list[Artist]:
         cleaned = (prefix or "").strip()
         if not cleaned:

backend/app/services/discord_repair.py

@@ -0,0 +1,183 @@
+"""Repair the Discord downloads made before the naming fix (issue #3999).
+
+Until dc840fe, gallery-dl's Discord patterns asked for keys the extractor never
+emits, so every Discord download landed as
+`<artist>/discord/None/<date>_None_<original name>`, next to a sidecar named
+after the attachment's ORIGINAL name. That broke two things:
+
+* **No Post, no date.** `find_sidecar` can never pair those names, so these
+  files were imported as loose images with no Post, and a card shows the
+  download time.
+* **No trustworthy metadata to relink from.** Every `image.png` in a channel
+  wrote the same `image.json`, so the surviving sidecar describes whichever
+  message was written last. The message id is gone from the filename too.
+
+The operator chose a clean re-download (2026-09-13) over relinking in place:
+delete the broken files and their records, make gallery-dl forget it fetched
+them, and backfill every Discord source again under the fixed naming.
+
+## Why the archive is cleared for ALL of Discord
+
+gallery-dl records a download as `discord{message_id}_{num}` (upstream
+`DiscordExtractor.archive_fmt`, prefixed with the category). The broken files
+lost their message ids, so there is no way to forget one source's entries and
+not another's. Every Discord download made before the fix is broken, so
+forgetting all of them is exactly right. Anything downloaded AFTER the fix still
+exists on disk under its correct name, and gallery-dl's `skip` sees the file and
+does not fetch it again.
+
+## What it does not touch
+
+Discord posts FC grouped itself (#388 E2) are built from Posts, and these files
+never had one, so there is nothing grouped to unwind. Images outside a
+`discord/None/` directory are never selected: the path filter requires both the
+`None` directory and the `_None_` filename, the pair only the bug produced.
+
+Operator-triggered only (Settings, preview first). Never on a beat.
+"""
+
+from __future__ import annotations
+
+import logging
+import sqlite3
+from pathlib import Path
+
+from sqlalchemy import func, select
+from sqlalchemy.orm import Session
+
+from ..models import ImageRecord, Source
+from .cleanup_service import delete_images
+from .gallery_dl import archive_path
+from .source_service import arm_backfill
+
+log = logging.getLogger(__name__)
+
+# `%` and `_` are LIKE wildcards, so the literal underscores around None are
+# escaped. `________` is the eight-digit date prefix the old pattern wrote.
+_BROKEN_PATH_LIKE = r"%/discord/None/________\_None\_%"
+
+# Upstream keys asset downloads as `asset_{server_id}_{id}`. FC never fetches
+# server assets, but excluding them keeps this to exactly the message
+# attachments the bug mangled.
+_ARCHIVE_SQL_MATCH = r"entry LIKE 'discord%' AND entry NOT LIKE 'discordasset\_%' ESCAPE '\'"
+_COUNT_SQL = "SELECT COUNT(*) FROM archive WHERE " + _ARCHIVE_SQL_MATCH
+_DELETE_SQL = "DELETE FROM archive WHERE " + _ARCHIVE_SQL_MATCH
+
+
+def broken_directories(images_root: Path) -> list[Path]:
+    """Every `<artist>/discord/None` directory. Artist folders that differ only by
+    case (`Conto` and `conto`) are separate directories and both are found."""
+    return sorted(d for d in Path(images_root).glob("*/discord/None") if d.is_dir())
+
+
+def count_archive_entries(archive: Path) -> int:
+    return _archive(archive, delete=False)
+
+
+def forget_archive_entries(archive: Path) -> int:
+    return _archive(archive, delete=True)
+
+
+def _archive(archive: Path, *, delete: bool) -> int:
+    if not archive.is_file():
+        return 0
+    # A download running at the same moment holds this file briefly. Waiting
+    # 30s for its lock beats failing the repair over a transient contention.
+    conn = sqlite3.connect(str(archive), timeout=30)
+    try:
+        has_table = conn.execute(
+            "SELECT 1 FROM sqlite_master WHERE type='table' AND name='archive'"
+        ).fetchone()
+        if not has_table:
+            return 0
+        if not delete:
+            return conn.execute(_COUNT_SQL).fetchone()[0]
+        cur = conn.execute(_DELETE_SQL)
+        conn.commit()
+        return cur.rowcount
+    finally:
+        conn.close()
+
+
+def _sweep_directory(directory: Path) -> tuple[int, bool]:
+    """Remove what the record deletes left behind: the collided sidecars, plus any
+    file that never became a record (a quarantined or rejected download). Then
+    the directory itself, if it is empty. Returns (files removed, dir removed)."""
+    removed = 0
+    for f in directory.iterdir():
+        if f.is_file():
+            try:
+                f.unlink()
+                removed += 1
+            except OSError as exc:
+                log.warning("discord repair: could not remove %s: %s", f, exc)
+    try:
+        directory.rmdir()
+        return removed, True
+    except OSError:
+        return removed, False
+
+
+def repair_discord_downloads(
+    session: Session, *, images_root: Path, dry_run: bool,
+) -> dict:
+    images_root = Path(images_root)
+    archive = archive_path(images_root)
+
+    broken = select(ImageRecord.id, ImageRecord.size_bytes).where(
+        ImageRecord.path.like(_BROKEN_PATH_LIKE, escape="\\")
+    )
+    rows = session.execute(broken).all()
+    image_ids = [r.id for r in rows]
+    directories = broken_directories(images_root)
+    sources = session.execute(
+        select(Source).where(Source.platform == "discord")
+    ).scalars().all()
+
+    summary = {
+        "images": len(image_ids),
+        "bytes": sum(r.size_bytes or 0 for r in rows),
+        "directories": len(directories),
+        "sources": len(sources),
+        "enabled_sources": sum(1 for s in sources if s.enabled),
+    }
+
+    if dry_run:
+        summary["archive_entries"] = count_archive_entries(archive)
+        return summary
+
+    deleted = delete_images(session, image_ids=image_ids, images_root=images_root)
+
+    swept = 0
+    directories_removed = 0
+    for d in directories:
+        n, gone = _sweep_directory(d)
+        swept += n
+        directories_removed += int(gone)
+
+    # Only after the files are gone. Forgetting first and failing half way would
+    # leave gallery-dl free to re-fetch into a directory still full of the old
+    # copies.
+    forgotten = forget_archive_entries(archive)
+
+    for source in sources:
+        arm_backfill(source)
+    session.commit()
+
+    remaining = session.execute(
+        select(func.count(ImageRecord.id)).where(
+            ImageRecord.path.like(_BROKEN_PATH_LIKE, escape="\\")
+        )
+    ).scalar_one()
+
+    summary.update(
+        images_deleted=deleted["images_deleted"],
+        files_failed=deleted["files_failed"],
+        leftover_files_removed=swept,
+        directories_removed=directories_removed,
+        archive_entries=forgotten,
+        backfills_started=len(sources),
+        remaining=remaining,
+    )
+    log.info("discord repair applied: %s", summary)
+    return summary

backend/app/services/gallery_dl.py

@@ -94,6 +94,58 @@ BACKFILL_CHUNK_SECONDS = 600
 _DEFAULT_GDL_TIMEOUT_SECONDS = 870
 
 
+# --- Discord naming ---------------------------------------------------------
+#
+# Derived from a REAL sidecar (operator's instance, 2026-09-13), not from memory
+# of gallery-dl's extractor. What gallery-dl's discord extractor actually emits
+# for an attachment: `channel` is a plain STRING (the channel's name), the
+# message is `message_id`, the attachment's position in it is `num`, and there
+# is NO `id` key at all.
+#
+# The previous patterns asked for `{channel[name]}` and `{id}`. Both render as
+# "None", so every Discord download since the platform was added landed in a
+# directory called `None` as `<date>_None_<original name>`. Worse, the sidecar was
+# named `{filename}.json` — the attachment's ORIGINAL name — which (a) `find_
+# sidecar` can never pair with `<date>_None_<name>.png`, so no Discord file ever
+# got a Post or a post date, and (b) collides: every `image.png` in a channel
+# overwrote the same `image.json`, so the one sidecar that survived described
+# whichever message happened to be written last.
+#
+# The fix names the sidecar EXACTLY like the media minus its extension, so
+# `find_sidecar`'s first candidate (`media.with_suffix(".json")`) is the match
+# and the name is unique per attachment. tests/test_gallery_dl_naming.py renders
+# these patterns against a sanitized copy of the real sidecar, so a key that
+# does not exist fails CI instead of silently becoming "None".
+DISCORD_FILENAME = "{date:%Y%m%d}_{message_id}_{num:>02}_{filename}.{extension}"
+DISCORD_DIRECTORY = ["{channel}"]
+
+
+def sidecar_name_for(media_pattern: str) -> str | None:
+    """The metadata filename pattern that names a sidecar exactly like its media.
+
+    Returns None for a pattern that does not end in `.{extension}`, since then
+    there is no media stem to mirror and the caller must fall back.
+    """
+    suffix = ".{extension}"
+    if not media_pattern.endswith(suffix):
+        return None
+    return media_pattern[: -len(suffix)] + ".json"
+
+
+def metadata_postprocessor(filename: str) -> dict:
+    return {"name": "metadata", "mode": "json", "directory": ".", "filename": filename}
+
+
+def archive_path(images_root: Path) -> Path:
+    """gallery-dl's download archive: the record of what it has already fetched.
+
+    One definition, because the Discord repair (services/discord_repair.py) has
+    to find the same file the downloader writes, without constructing a service
+    whose __init__ creates directories.
+    """
+    return Path(images_root) / ".gallery-dl" / "archive.sqlite3"
+
+
 @dataclass
 class SourceConfig:
     """Per-source overrides loaded from Source.config_overrides JSON.
@@ -376,8 +428,11 @@ class GalleryDLService:
         },
         "discord": {
             "content_types": ["all"],
-            "directory": ["{channel[name]}"],
+            "directory": DISCORD_DIRECTORY,
-            "filename": "{date:%Y%m%d}_{id}_{filename}.{extension}",
+            "filename": DISCORD_FILENAME,
+            # Overrides the global `{filename}.json` sidecar for this extractor
+            # only — see the Discord naming note above.
+            "postprocessors": [metadata_postprocessor(sidecar_name_for(DISCORD_FILENAME))],
             "embeds": "all",
             "stickers": True,
             "reactions": False,
@@ -402,7 +457,7 @@ class GalleryDLService:
         config = {
             "extractor": {
                 "base-directory": str(self.images_root),
-                "archive": str(self._config_dir / "archive.sqlite3"),
+                "archive": str(archive_path(self.images_root)),
                 "skip": True,
                 "sleep": self._rate_limit,
                 "sleep-request": max(0.5, self._rate_limit / 4),
@@ -497,6 +552,17 @@ class GalleryDLService:
         if source_config.filename_pattern:
             platform_section["filename"] = source_config.filename_pattern
 
+        # A platform that names its sidecar after its media must keep doing so
+        # under a per-source filename override, or the pairing breaks exactly the
+        # way Discord's did. No metadata wanted means no platform postprocessor
+        # either — the global list was already dropped above.
+        if "postprocessors" in platform_section:
+            mirrored = sidecar_name_for(platform_section.get("filename") or "")
+            if not source_config.save_metadata or mirrored is None:
+                platform_section.pop("postprocessors")
+            else:
+                platform_section["postprocessors"] = [metadata_postprocessor(mirrored)]
+
         platform_section["metadata"] = source_config.save_metadata
 
         return config

backend/app/services/membership_reconcile.py

@@ -8,9 +8,10 @@ trustworthy enough to act on.
 1. `subscribed_not_tracked` — you pay for this and FC does not follow it. The
    adoption win, and the only bucket carrying an action.
 2. `tracked_not_subscribed` — FC follows this and the roster does not show you
-   paying for it. REPORT ONLY, by the operator's decision (2026-09-11): it says
+   paying for it. No longer shown on the card: the operator reversed the
-   what it sees and links to the existing Subscriptions row, and offers no
+   2026-09-11 "report only" call on 2026-09-13. The lapsed half of it now ACTS,
-   one-click disable.
+   in `apply_membership_lapses` below (#3995). The absent half still only
+   reports, because absence proves nothing.
 3. `matched` — the healthy set. Counted, not listed loudly.
 4. `unidentified` — sources this join cannot speak to at all. Reported as
    exactly that, because the alternative is filing them under a verdict.
@@ -39,7 +40,7 @@ rendered as lapsed. That is the whole reason it returns a tri-state.
 
 from __future__ import annotations
 
-from datetime import datetime
+from datetime import UTC, datetime
 
 from sqlalchemy import select
 from sqlalchemy.ext.asyncio import AsyncSession
@@ -47,12 +48,12 @@ from sqlalchemy.ext.asyncio import AsyncSession
 from ..models import Artist, MembershipSync, PlatformMembership, Source
 from .membership_roster import (
     get_sync_state,
-    has_paid_access,
     identity_keys_for_source,
     pair_sources_with_memberships,
     roster_is_fresh,
     url_tail,
 )
+from .native_ingest_common import has_paid_access
 
 # Why a source appears in `tracked_not_subscribed`. Ordered strongest first —
 # the UI renders a different sentence per basis, because collapsing them into
@@ -233,3 +234,126 @@ async def reconcile_all(session: AsyncSession, now: datetime | None = None) -> d
             await reconcile(session, platform=p, now=now) for p in sorted(platforms)
         ]
     }
+
+
+# ---------------------------------------------------------------------------
+# Stop pulling what the account no longer pays for (#3995)
+# ---------------------------------------------------------------------------
+#
+# Operator decision, 2026-09-13, reversing the 2026-09-11 "report only" call
+# for this direction: "if I kill a subscription on patreon I would like the
+# pulling to stop on curator as well", with automatic resume on resubscribing.
+#
+# This is a SOURCE-level action taken by the daily sweep, visible on the source
+# row and reversible there. It is not a fetch-path decision. The line C5 draws,
+# that the roster never decides a POST is inaccessible, still holds: nothing
+# here reads per-post access, and no download path reads the roster
+# (`test_no_fetch_path_can_read_the_roster`). The scheduler keeps selecting on
+# `enabled` alone.
+#
+# Acts ONLY on positive evidence. A source whose matched membership says access
+# has ended is stopped. A source with NO matched membership is left alone,
+# because absence has innocent causes: a creator rename, a source never walked
+# so no id is cached, a membership the platform stopped listing. Stopping on
+# absence would switch off things the operator still pays for.
+#
+# Two app-managed config_overrides keys carry the state. The `_` prefix is
+# already the "FC writes this, an operator edit preserves it" family.
+#   _membership_stopped  set when the sweep stops a source; the sweep resumes
+#                        ONLY sources carrying it, so a source the operator
+#                        switched off by hand is never switched back on
+#   _membership_kept     set by SourceService.update when the operator turns a
+#                        stopped source back ON: a deliberate choice to keep
+#                        pulling a lapsed creator, which the next sweep must
+#                        not undo. Cleared when the membership is paid again.
+STOPPED_KEY = "_membership_stopped"
+KEPT_KEY = "_membership_kept"
+
+
+def _access_expires_at(m: PlatformMembership) -> datetime | None:
+    """When paid access actually ends, if the platform says.
+
+    Patreon keeps a cancelled membership's access until the end of the billing
+    period and reports that date (`member.access_expires_at`, note #3992).
+    SubscribeStar's page gives no such date, so a cancelled SubscribeStar
+    membership stops at once. Returns None when there is no usable date.
+    """
+    details = m.details or {}
+    raw = details.get("access_expires_at") or (details.get("member") or {}).get("access_expires_at")
+    if not isinstance(raw, str) or not raw:
+        return None
+    try:
+        parsed = datetime.fromisoformat(raw.replace("Z", "+00:00"))
+    except ValueError:
+        return None
+    return parsed if parsed.tzinfo else parsed.replace(tzinfo=UTC)
+
+
+async def apply_membership_lapses(
+    session: AsyncSession, *, platform: str, now: datetime | None = None,
+) -> dict:
+    """Stop sources whose paid access has ended; resume the ones this stopped.
+
+    Refuses to act on a roster that isn't fresh, for the same reason C4 refuses
+    to draw conclusions from one.
+    """
+    now = now or datetime.now(UTC)
+    state = await get_sync_state(session, platform)
+    if not roster_is_fresh(state, now=now):
+        return {"platform": platform, "skipped": "roster not fresh", "stopped": 0, "resumed": 0}
+
+    memberships = (await session.execute(
+        select(PlatformMembership).where(PlatformMembership.platform == platform)
+    )).scalars().all()
+    sources = (await session.execute(
+        select(Source).where(Source.platform == platform)
+    )).scalars().all()
+    pairs = pair_sources_with_memberships(list(sources), list(memberships))
+
+    stopped: list[int] = []
+    resumed: list[int] = []
+    for source in sources:
+        pair = pairs.get(source.id)
+        if pair is None:
+            continue  # absence is never acted on, see above
+        m, _kind = pair
+        paid = has_paid_access(
+            m.platform, m.status,
+            is_free_member=bool((m.details or {}).get("is_free_member")),
+        )
+        co = dict(source.config_overrides or {})
+
+        if paid is True:
+            changed = co.pop(KEPT_KEY, None) is not None
+            if STOPPED_KEY in co:
+                co.pop(STOPPED_KEY)
+                source.enabled = True
+                resumed.append(source.id)
+                changed = True
+            if changed:
+                source.config_overrides = co
+            continue
+
+        # Unknown status: never a reason to stop something (has_paid_access's
+        # tri-state exists for exactly this).
+        if paid is None:
+            continue
+        if not source.enabled or co.get(KEPT_KEY):
+            continue
+        expires = _access_expires_at(m)
+        if expires is not None and expires > now:
+            continue  # still inside the paid-through period
+
+        co[STOPPED_KEY] = {"at": now.isoformat(), "status": m.status}
+        source.config_overrides = co
+        source.enabled = False
+        # The same clean slate a manual disable gives (SourceService.update,
+        # #1285), so a stopped source doesn't linger as failing or gated.
+        source.last_error = None
+        source.error_type = None
+        source.consecutive_failures = 0
+        stopped.append(source.id)
+
+    await session.commit()
+    return {"platform": platform, "stopped": len(stopped), "resumed": len(resumed)}
+

backend/app/services/membership_roster.py

@@ -20,8 +20,10 @@ own word — `active_patron`, not some normalised FC value. The mapping from
 those words to FC's meaning is a read-site concern and belongs in code that can
 be corrected without a migration, because the vocabulary comes from whatever
 each platform says and will be discovered per platform rather than designed up
-front. `MEMBERSHIP_STATUS` below is a place for that knowledge to accumulate as
+front. `native_ingest_common.MEMBERSHIP_STATUS` is where that knowledge
-platforms are characterised; it is deliberately empty of guesses today.
+accumulates as platforms are characterised, and it holds no guesses. It lives
+there rather than here because platform clients need it, and a client may not
+import this module (test_gated_reason.py).
 """
 
 from __future__ import annotations
@@ -35,78 +37,10 @@ from sqlalchemy.dialects.postgresql import insert as pg_insert
 from sqlalchemy.ext.asyncio import AsyncSession
 
 from ..models import MembershipSync, PlatformMembership, Source
+from .native_ingest_common import has_paid_access
 
 log = logging.getLogger(__name__)
 
-# Platform word -> whether the account currently has paid access.
-#
-# Every entry here must come from a CHARACTERISED response, never from API docs
-# or a plausible guess — project rule 130, and inventing a status before seeing
-# it in a real payload is exactly the failure it names.
-#
-# patreon: from a live capture of the operator's own session, 2026-09-10
-# (Scribe note #3886). Only two values were OBSERVED in `patron_status` and
-# only those two are here.
-#
-# `declined_patron` is deliberately ABSENT even though it looks obviously
-# right. It appears in the request's `filter[membership_type]`, and the capture
-# proved that filter is NOT the same vocabulary as the attribute — a row
-# selected by the filter as `free_member` came back with
-# `patron_status: former_patron`, a word the filter does not contain. Reading
-# the filter as an enum is the specific mistake the capture caught; adding
-# `declined_patron` on the strength of it would be repeating that mistake one
-# step later.
-#
-# Unknown words are NOT an error: an unrecognised status means the roster
-# records evidence it cannot yet interpret, which is a better state than
-# dropping the row or asserting a meaning for it.
-#
-# subscribestar: from a live capture of the account's /subscriptions page,
-# 2026-09-13 (Scribe note #3989). SubscribeStar gives NO per-row status word —
-# a membership's state is which of two tables it sits in — so the "word" stored
-# is the table card's own `data-identifier`, verbatim. Those two identifiers are
-# the whole vocabulary; there is nothing further to characterise later.
-MEMBERSHIP_STATUS: dict[str, dict[str, bool]] = {
-    "patreon": {
-        "active_patron": True,
-        "former_patron": False,
-    },
-    "subscribestar": {
-        "active_subscriptions": True,
-        "cancelled_subscriptions": False,
-    },
-}
-
-
-def has_paid_access(
-    platform: str, status: str | None, *, is_free_member: bool = False,
-) -> bool | None:
-    """Does this membership mean the account currently PAYS for access?
-
-    Returns None for a status this code has not been taught, which callers must
-    treat as "unknown" rather than as False. The difference matters: False says
-    the operator has lost access, and asserting that from an unrecognised word
-    would tell them to cancel a source they are still paying for.
-
-    `is_free_member` is a second axis, not a status, and that is Patreon's
-    design rather than ours: the capture shows a free follow expressed as a
-    boolean alongside `patron_status`, so a "current" membership can still be
-    one nobody is paying for. Taking status alone would report a free follower
-    as a paying patron, and C4 would then never offer to clean it up.
-
-    (Honest limit: the capture contains no ACTIVE free member, so it cannot
-    demonstrate the two axes coming apart. The separation is what the payload's
-    shape says; the sample only shows it is possible, not that it happens.)
-    """
-    if status is None:
-        return None
-    known = MEMBERSHIP_STATUS.get(platform, {}).get(status)
-    if known is None:
-        return None
-    if not known:
-        return False
-    return not is_free_member
-
 
 async def touch_membership(
     session: AsyncSession,

backend/app/services/native_ingest_common.py

@@ -231,7 +231,7 @@ class Membership:
 
     `status` carries the PLATFORM's own word, verbatim and unmapped
     (`active_patron`, `former_patron`, ...). Deciding what it means is the read
-    site's job — `membership_roster.has_paid_access` — precisely so an
+    site's job — `has_paid_access`, below — precisely so an
     unrecognised word records as evidence rather than as a decision.
 
     `is_free_member` is SEPARATE from status and must stay that way. Patreon
@@ -396,3 +396,81 @@ class BaseNativeDownloader:
         sidecar_path = media_path.with_suffix(".json")
         sidecar_path.write_text(json.dumps(data, indent=2))
         return sidecar_path
+
+# --- membership status vocabulary (#387) ------------------------------------
+#
+# Lives here, beside `Membership`, rather than in `membership_roster`. It is
+# pure platform knowledge with no database behind it, and the platform clients
+# need it too. Patreon's must tell a lapsed membership to a deleted creator
+# (skippable) from a paid one it cannot attribute (drift), and a client may not
+# import `membership_roster`: test_gated_reason.py forbids any fetch path from
+# reaching the roster, so the roster can explain a skip but never cause one.
+#
+# Platform word -> whether the account currently has paid access.
+#
+# Every entry here must come from a CHARACTERISED response, never from API docs
+# or a plausible guess — project rule 130, and inventing a status before seeing
+# it in a real payload is exactly the failure it names.
+#
+# patreon: from a live capture of the operator's own session, 2026-09-10
+# (Scribe note #3886). Only two values were OBSERVED in `patron_status` and
+# only those two are here.
+#
+# `declined_patron` is deliberately ABSENT even though it looks obviously
+# right. It appears in the request's `filter[membership_type]`, and the capture
+# proved that filter is NOT the same vocabulary as the attribute — a row
+# selected by the filter as `free_member` came back with
+# `patron_status: former_patron`, a word the filter does not contain. Reading
+# the filter as an enum is the specific mistake the capture caught; adding
+# `declined_patron` on the strength of it would be repeating that mistake one
+# step later.
+#
+# Unknown words are NOT an error: an unrecognised status means the roster
+# records evidence it cannot yet interpret, which is a better state than
+# dropping the row or asserting a meaning for it.
+#
+# subscribestar: from a live capture of the account's /subscriptions page,
+# 2026-09-13 (Scribe note #3989). SubscribeStar gives NO per-row status word —
+# a membership's state is which of two tables it sits in — so the "word" stored
+# is the table card's own `data-identifier`, verbatim. Those two identifiers are
+# the whole vocabulary; there is nothing further to characterise later.
+MEMBERSHIP_STATUS: dict[str, dict[str, bool]] = {
+    "patreon": {
+        "active_patron": True,
+        "former_patron": False,
+    },
+    "subscribestar": {
+        "active_subscriptions": True,
+        "cancelled_subscriptions": False,
+    },
+}
+
+
+def has_paid_access(
+    platform: str, status: str | None, *, is_free_member: bool = False,
+) -> bool | None:
+    """Does this membership mean the account currently PAYS for access?
+
+    Returns None for a status this code has not been taught, which callers must
+    treat as "unknown" rather than as False. The difference matters: False says
+    the operator has lost access, and asserting that from an unrecognised word
+    would tell them to cancel a source they are still paying for.
+
+    `is_free_member` is a second axis, not a status, and that is Patreon's
+    design rather than ours: the capture shows a free follow expressed as a
+    boolean alongside `patron_status`, so a "current" membership can still be
+    one nobody is paying for. Taking status alone would report a free follower
+    as a paying patron, and C4 would then never offer to clean it up.
+
+    (Honest limit: the capture contains no ACTIVE free member, so it cannot
+    demonstrate the two axes coming apart. The separation is what the payload's
+    shape says; the sample only shows it is possible, not that it happens.)
+    """
+    if status is None:
+        return None
+    known = MEMBERSHIP_STATUS.get(platform, {}).get(status)
+    if known is None:
+        return None
+    if not known:
+        return False
+    return not is_free_member

backend/app/services/patreon_client.py

@@ -58,6 +58,7 @@ from .native_ingest_common import (
     NativeDriftError,
     NativeIngestError,
     basename_from_url,
+    has_paid_access,
     make_session,
     retry_after_seconds,
 )
@@ -631,7 +632,25 @@ class PatreonClient:
                 "cannot tell a complete roster from a truncated one"
             )
 
-    def _membership(self, member: dict, index: dict) -> Membership:
+    def _membership(self, member: dict, index: dict) -> Membership | None:
+        """One member row as a Membership, or None for a row the roster can skip.
+
+        The one skippable row is a LAPSED membership whose creator no longer
+        exists. The live roster (note #3886, CORRECTION 3) returned 104 rows,
+        because FC sends no membership-type filter and so gets lapses going back
+        years. One of them, a membership that ended in 2017, carried no
+        `campaign` relationship at all: the key is absent, not null, and its
+        reward names no campaign either. The creator's page is gone.
+
+        Raising on that row made the whole roster unusable over one membership
+        nobody can act on. Skipping it changes no conclusion. A lapsed
+        membership already means "not paying", absence means the same, and no
+        Source can be matched to a campaign that no longer has an id.
+
+        The refusal stays for every other row. An active or unrecognised
+        membership without a creator is something FC cannot vouch for, and
+        dropping it would read downstream as a cancellation.
+        """
         attrs = member.get("attributes") or {}
         if "patron_status" not in attrs:
             raise PatreonDriftError(
@@ -640,6 +659,17 @@ class PatreonClient:
 
         campaign_ids = self._related_ids(member, "campaign")
         if not campaign_ids:
+            paid = has_paid_access(
+                "patreon", attrs.get("patron_status"),
+                is_free_member=bool(attrs.get("is_free_member")),
+            )
+            if paid is False:
+                log.info(
+                    "Patreon roster: skipping a lapsed membership with no campaign "
+                    "(creator deleted); status=%s access_expires_at=%s",
+                    attrs.get("patron_status"), attrs.get("access_expires_at"),
+                )
+                return None
             raise PatreonDriftError(
                 "Patreon member resource has no campaign relationship — a "
                 "membership we cannot attribute to a creator is not usable"
@@ -700,7 +730,9 @@ class PatreonClient:
             index = self._transform(response)
             rows = [m for m in (response.get("data") or []) if isinstance(m, dict)]
             for member in rows:
-                yield self._membership(member, index)
+                membership = self._membership(member, index)
+                if membership is not None:
+                    yield membership
 
             seen += len(rows)
             total = int(response["meta"]["pagination"]["total"] or 0)

backend/app/services/source_service.py

@@ -19,6 +19,7 @@ from ..models import (
 )
 from .db_helpers import failing_sources_clause
 from .gallery_dl import ErrorType
+from .membership_reconcile import KEPT_KEY, STOPPED_KEY
 from .membership_roster import gated_reasons_for_sources
 from .platforms import known_platform_keys
 from .scheduler_service import compute_next_check_at
@@ -158,6 +159,38 @@ def _is_app_managed(key: str) -> bool:
 BACKFILL_MAX_CHUNKS = 200
 
 
+def arm_backfill(source: Source) -> None:
+    """Arm a fresh run-until-done backfill on `source` (plan #693). Mutation
+    only — the caller commits. Shared by `SourceService.start_backfill` and the
+    sync Discord repair, so both clear exactly the same resume state."""
+    co = dict(source.config_overrides or {})
+    co["_backfill_state"] = "running"
+    for k in ("_backfill_cursor", "_backfill_cursor_stalls", "_backfill_chunks",
+              "_backfill_posts"):
+        co.pop(k, None)
+    source.config_overrides = co
+    source.backfill_runs_remaining = BACKFILL_MAX_CHUNKS
+
+
+def _record_manual_enable_choice(source: Source, *, enabled: bool) -> None:
+    """Keep the membership sweep (#3995) from overriding the operator.
+
+    Turning a source the sweep STOPPED back on is a deliberate choice to keep
+    pulling a lapsed creator, so it is marked kept and the next sweep leaves it
+    alone. Turning a source off by hand drops any sweep marker, so the sweep
+    never switches back on something the operator switched off themselves.
+    """
+    co = dict(source.config_overrides or {})
+    if enabled and STOPPED_KEY in co:
+        co.pop(STOPPED_KEY)
+        co[KEPT_KEY] = True
+    elif not enabled:
+        co.pop(STOPPED_KEY, None)
+    else:
+        return
+    source.config_overrides = co
+
+
 class SourceService:
     def __init__(self, session: AsyncSession):
         self.session = session
@@ -415,6 +448,9 @@ class SourceService:
         for key, value in fields.items():
             setattr(source, key, value)
 
+        if "enabled" in fields:
+            _record_manual_enable_choice(source, enabled=bool(fields["enabled"]))
+
         if url_changed:
             # Repointing a source at a different creator makes a cached campaign
             # id WRONG, not merely stale, and `patreon_resolver` consults that
@@ -473,13 +509,7 @@ class SourceService:
         )).scalar_one_or_none()
         if source is None:
             raise LookupError(f"source id={source_id} not found")
-        co = dict(source.config_overrides or {})
+        arm_backfill(source)
-        co["_backfill_state"] = "running"
-        for k in ("_backfill_cursor", "_backfill_cursor_stalls", "_backfill_chunks",
-                  "_backfill_posts"):
-            co.pop(k, None)
-        source.config_overrides = co
-        source.backfill_runs_remaining = BACKFILL_MAX_CHUNKS
         await self.session.commit()
         return await self._row_to_record(source)
 

backend/app/services/subscribestar_client.py

@@ -316,7 +316,7 @@ _ROSTER_URL = f"{_ROSTER_BASE}/subscriptions"
 # `data-identifier`, the one vocabulary that names a state: the table class
 # inside the cancelled card says `for-unsubscribed_users`, a different word for
 # the same list (note #3989, CORRECTION 1). The identifier is stored verbatim as
-# Membership.status and mapped in membership_roster.MEMBERSHIP_STATUS.
+# Membership.status and mapped in native_ingest_common.MEMBERSHIP_STATUS.
 _ROSTER_ACTIVE = "active_subscriptions"
 _ROSTER_CANCELLED = "cancelled_subscriptions"
 

backend/app/tasks/admin.py

@@ -122,6 +122,28 @@ def prune_missing_file_records_task(self) -> dict:
     return {"checked": checked, "missing": len(missing_ids), "deleted": deleted}
 
 
+@celery.task(
+    name="backend.app.tasks.admin.repair_discord_downloads_task",
+    bind=True,
+    autoretry_for=(OperationalError, DBAPIError),
+    retry_backoff=15, retry_backoff_max=180, max_retries=1,
+    soft_time_limit=1800, time_limit=2400,  # 30 min / 40 min
+)
+def repair_discord_downloads_task(self, dry_run: bool = True) -> dict:
+    """Clean re-download of the Discord files broken by the `None` naming
+    (#3999). dry_run (the default) returns the projection; apply deletes the
+    broken images and their files, makes gallery-dl forget every Discord
+    download, and restarts every Discord source's backfill. Defaults to the SAFE
+    preview because the apply deletes files. Operator-triggered only."""
+    from ..services.discord_repair import repair_discord_downloads
+
+    SessionLocal = _sync_session_factory()
+    with SessionLocal() as session:
+        return repair_discord_downloads(
+            session, images_root=IMAGES_ROOT, dry_run=dry_run,
+        )
+
+
 @celery.task(
     name="backend.app.tasks.admin.dedup_videos_task",
     bind=True,

backend/app/tasks/maintenance.py

@@ -1247,6 +1247,7 @@ def sync_memberships() -> str:
     from ..services.artist_membership_service import rescan as membership_rescan
     from ..services.credential_crypto import CredentialCrypto
     from ..services.credential_service import CredentialService
+    from ..services.membership_reconcile import apply_membership_lapses
     from ..services.membership_roster import roster_user_id, sync_platform
     from ..services.patreon_client import PatreonClient
     from ..services.subscribestar_client import SubscribeStarClient
@@ -1298,8 +1299,17 @@ def sync_memberships() -> str:
                     )
 
                 async with async_factory() as session:
-                    results.append(
+                    result = await sync_platform(session, platform=platform, fetch=fetch)
-                        await sync_platform(session, platform=platform, fetch=fetch)
+                results.append(result)
+
+                # #3995: stop pulling sources whose paid access has ended, and
+                # resume the ones this stopped once they are paid again. Only
+                # right after a successful sync, so it always acts on the roster
+                # just written, never on a stale one.
+                if result.get("ok"):
+                    async with async_factory() as session:
+                        result["lapses"] = await apply_membership_lapses(
+                            session, platform=platform,
                         )
 
             # #388 E4: offer the freshly-synced roster to the artists FC already
@@ -1321,7 +1331,12 @@ def sync_memberships() -> str:
         if "skipped" in r:
             parts.append(f"{r['platform']}=skipped({r['skipped']})")
         elif r.get("ok"):
-            parts.append(f"{r['platform']}={r['count']}")
+            lapses = r.get("lapses") or {}
+            detail = (
+                f"(stopped={lapses['stopped']},resumed={lapses['resumed']})"
+                if lapses.get("stopped") or lapses.get("resumed") else ""
+            )
+            parts.append(f"{r['platform']}={r['count']}{detail}")
         else:
             parts.append(f"{r['platform']}=FAILED({r['error']})")
     if res.get("suggested") is not None:

frontend/public/favicon.svg

@@ -15,7 +15,10 @@
        Colours are theme tokens (frontend/src/theme/fabled-tokens.js): obsidian
        plate, accent gold. The plate is kept here (unlike logo.svg) so the tab
        icon is self-contained against any browser chrome; on the nav it is
-       invisible because it matches --fc-chrome-rgb exactly. -->
+       invisible because it matches the fc-chrome-rgb custom property exactly.
+       No double hyphen may appear inside this comment: XML forbids it, and a
+       browser refuses to render an SVG that does not parse (it happened once —
+       tests/test_public_svgs.py). -->
   <rect width="32" height="32" rx="6" fill="#14171A"/>
   <rect x="6.2" y="4.2" width="19.6" height="23.6" rx="1.4"
         fill="none" stroke="#A87338" stroke-width="2.4"/>

frontend/src/components/AppShell.vue

@@ -17,6 +17,22 @@ const route = useRoute()
 
 <style scoped>
 .fc-content {
+  /* The full brand mark as one large, faint backdrop behind every page,
+     pinned to the viewport so content scrolls over it. Opaque surfaces
+     (cards, the nav) cover it; it shows in the gutters and on bare page
+     ground. The series reader is immersive and skips the shell, so reading
+     is never drawn over it.
+
+     Faded by laying the page colour over it at 94%, NOT with `opacity` on an
+     overlay element: an overlay needs this element to be z-indexed above it,
+     which makes all page content one stacking context under the nav and can
+     trap an in-page overlay beneath it. A background changes no stacking.
+     The mark is gold and parchment, close to the text colours, so it has to
+     stay this faint to keep text over it readable. */
+  background:
+    linear-gradient(rgba(var(--v-theme-background), 0.94), rgba(var(--v-theme-background), 0.94)),
+    url('/logo.svg') center / min(88vmin, 1100px) no-repeat;
+  background-attachment: fixed;
   min-height: 100vh;
   /* NO padding-top: the TopNav is position:sticky, so it already reserves its
      own space in the v-app flex column — content flows directly below it. The

frontend/src/components/posts/PostCard.vue

@@ -1,5 +1,8 @@
 <template>
-  <v-card class="fc-post-card" variant="outlined">
+  <v-card
+    ref="cardEl" class="fc-post-card" variant="outlined"
+    :class="{ 'fc-post-card--wide': wide }"
+  >
     <div class="fc-post-card__head">
       <!-- Posts with no live subscription have source=null (alembic 0030);
            show a "filesystem import" affordance instead of a platform chip. -->
@@ -58,7 +61,7 @@
         </button>
         <div
           v-if="rail.length || moreCount" class="fc-post-card__rail"
-          :style="{ '--fc-rail-cols': railCols }"
+          :style="{ '--fc-rail-cols': railCols, '--fc-grid-cols': Math.min(2, railCols) }"
         >
           <button
             v-for="t in rail" :key="t.image_id" type="button"
@@ -221,20 +224,33 @@ const synthesisTitle = computed(() => {
 })
 
 const hero = computed(() => images.value[0])
-// The thumbnail strip spans the hero's full width (CSS grid, equal columns),
+
-// rather than a fixed 3-cell cap. Show up to RAIL_MAX cells; when there are
+// Filmstrip layout (milestone #407, option A). On a very wide window a card
-// more images than fit, the last cell becomes a "+N" overflow tile so the
+// that just grew would give one post the whole screen, so a WIDE card instead
-// count stays accurate.
+// pins the hero to a fixed height and moves the extra images into a 2-column
-const RAIL_MAX = 5
+// grid BESIDE it. Measured on the card rather than the viewport because the
+// same card renders in the Latest feed, Browse, and the in-context view, each
+// at a different width.
+const WIDE_CARD_PX = 1100
+const cardEl = ref(null)
+const wide = ref(false)
+
+// The narrow layout's strip spans the hero's full width (CSS grid, equal
+// columns); the wide layout's grid is 2×2. Show up to that many cells; when
+// there are more images than fit, the last cell becomes a "+N" overflow tile so
+// the count stays accurate.
+const RAIL_MAX_NARROW = 5
+const RAIL_MAX_WIDE = 4
 const serverMore = computed(() => props.post.thumbnails_more || 0)
 const afterHero = computed(() => images.value.slice(1))
+const railMax = computed(() => (wide.value ? RAIL_MAX_WIDE : RAIL_MAX_NARROW))
 const hasOverflow = computed(
-  () => serverMore.value > 0 || afterHero.value.length > RAIL_MAX,
+  () => serverMore.value > 0 || afterHero.value.length > railMax.value,
 )
 const rail = computed(() =>
   hasOverflow.value
-    ? afterHero.value.slice(0, RAIL_MAX - 1)
+    ? afterHero.value.slice(0, railMax.value - 1)
-    : afterHero.value.slice(0, RAIL_MAX),
+    : afterHero.value.slice(0, railMax.value),
 )
 const visibleCount = computed(() => (images.value.length ? 1 + rail.value.length : 0))
 const moreCount = computed(() => {
@@ -349,8 +365,17 @@ function measureOverflow () {
 }
 
 let ro = null
+let cardRo = null
 onMounted(() => {
   nextTick(measureOverflow)
+  const root = cardEl.value?.$el
+  if (typeof ResizeObserver !== 'undefined' && root) {
+    cardRo = new ResizeObserver((entries) => {
+      const w = entries[0]?.contentRect?.width ?? 0
+      wide.value = w >= WIDE_CARD_PX
+    })
+    cardRo.observe(root)
+  }
   // Re-measure when the card resizes (the container-query clamp differs by
   // width). Guarded for happy-dom / older runtimes without ResizeObserver.
   if (typeof ResizeObserver !== 'undefined' && descEl.value) {
@@ -358,7 +383,10 @@ onMounted(() => {
     ro.observe(descEl.value)
   }
 })
-onBeforeUnmount(() => { if (ro) { ro.disconnect(); ro = null } })
+onBeforeUnmount(() => {
+  if (ro) { ro.disconnect(); ro = null }
+  if (cardRo) { cardRo.disconnect(); cardRo = null }
+})
 
 async function toggleDesc () {
   if (!descExpanded.value) {
@@ -495,6 +523,40 @@ function formatBytes (n) {
   color: rgb(var(--v-theme-accent));
 }
 
+/* --- Filmstrip layout (wide cards, #407 A) ---------------------------------
+   The hero has a HEIGHT, not a width: a wide card must not turn into a
+   full-screen post, so its height stays roughly a third of the viewport
+   whatever the window's width. The extra images sit beside it as square cells
+   whose size derives from that same height, so the grid always ends flush with
+   the hero's bottom edge. */
+.fc-post-card--wide {
+  --fc-hero-h: clamp(260px, 34vh, 460px);
+  --fc-grid-gap: 8px;
+  --fc-cell: calc((var(--fc-hero-h) - var(--fc-grid-gap)) / 2);
+}
+.fc-post-card--wide .fc-post-card__body { flex-direction: row; gap: 24px; }
+.fc-post-card--wide .fc-post-card__media {
+  flex: 0 0 auto;
+  display: flex;
+  gap: var(--fc-grid-gap);
+}
+.fc-post-card--wide .fc-post-card__hero {
+  width: auto;
+  height: var(--fc-hero-h);
+}
+.fc-post-card--wide .fc-post-card__rail {
+  margin-top: 0;
+  gap: var(--fc-grid-gap);
+  grid-template-columns: repeat(var(--fc-grid-cols, 2), var(--fc-cell));
+  grid-auto-rows: var(--fc-cell);
+}
+.fc-post-card--wide .fc-post-card__rail-cell,
+.fc-post-card--wide .fc-post-card__rail-more { height: 100%; }
+.fc-post-card--wide .fc-post-card__text { flex: 1 1 0; min-width: 0; }
+/* Text is secondary here — long reads happen in the expanded view — so the
+   clamp keeps the text column no taller than the images beside it. */
+.fc-post-card--wide .fc-post-card__desc--clamped { -webkit-line-clamp: 4; }
+
 .fc-post-card__title {
   font-family: 'Fraunces', Georgia, serif;
   font-size: 18px; font-weight: 700;

frontend/src/components/posts/PostsFilterBar.vue

@@ -1,21 +1,22 @@
 <template>
   <div class="fc-posts-filters">
+    <!-- The full artist list, filtered client-side as you type. This used to
+         search the server only once something was typed, so opening the
+         dropdown showed an empty menu. -->
     <v-autocomplete
       v-model="artistModel"
       :items="artistOptions"
       :loading="artistLoading"
-      :search="artistQuery"
       item-title="name"
       item-value="id"
       label="Artist"
       density="compact"
       hide-details
       clearable
-      no-filter
       return-object
+      no-data-text="No matching artists"
       class="fc-posts-filters__artist"
-      @update:search="onArtistSearch"
+      @update:model-value="emitFilters"
-      @update:model-value="onArtistPicked"
     />
 
     <v-select
@@ -39,7 +40,8 @@
 
 <script setup>
 import { computed, onMounted, ref, watch } from 'vue'
-import { useSourcesStore } from '../../stores/sources.js'
+
+import { useApi } from '../../composables/useApi.js'
 import { usePlatformsStore } from '../../stores/platforms.js'
 
 const props = defineProps({
@@ -48,18 +50,19 @@ const props = defineProps({
 })
 const emit = defineEmits(['update:filters'])
 
-const sourcesStore = useSourcesStore()
+const api = useApi()
 const platformsStore = usePlatformsStore()
 
-// Artist autocomplete state
-const artistQuery = ref('')
 const artistOptions = ref([])
 const artistLoading = ref(false)
 const artistModel = ref(null)
 
-// Platform v-select state
+// `list`, not `platforms`: the store has never had a `platforms` property, so
+// this read undefined and the dropdown opened empty.
+// test/storeUsage.spec.js now fails on any read of a property the store does
+// not define.
 const platformItems = computed(() =>
-  (platformsStore.platforms || []).map(p => ({ title: p.key, value: p.key }))
+  platformsStore.list.map(p => ({ title: p.name || p.key, value: p.key }))
 )
 const platformModel = ref(props.platform)
 
@@ -67,29 +70,6 @@ const hasFilters = computed(
   () => artistModel.value != null || platformModel.value != null
 )
 
-let _searchTimer = null
-function onArtistSearch(q) {
-  artistQuery.value = q
-  clearTimeout(_searchTimer)
-  if (!q || !q.trim()) {
-    artistOptions.value = artistModel.value ? [artistModel.value] : []
-    return
-  }
-  _searchTimer = setTimeout(async () => {
-    artistLoading.value = true
-    try {
-      const results = await sourcesStore.autocompleteArtist(q, 20)
-      artistOptions.value = results
-    } finally {
-      artistLoading.value = false
-    }
-  }, 200)
-}
-
-function onArtistPicked() {
-  emitFilters()
-}
-
 function emitFilters() {
   emit('update:filters', {
     artist_id: artistModel.value?.id ?? null,
@@ -100,30 +80,38 @@ function emitFilters() {
 function clearAll() {
   artistModel.value = null
   platformModel.value = null
-  artistOptions.value = []
-  artistQuery.value = ''
   emitFilters()
 }
 
-onMounted(async () => {
+// A deep link carries only the id. Once the list is loaded, show the real name
-  await platformsStore.loadAll()
+// rather than a placeholder.
-  // If a deep-link arrives with an artist_id, hydrate the selected display.
+function selectArtistById(id) {
-  if (props.artistId != null) {
+  if (id == null) {
-    const seed = { id: props.artistId, name: `Artist #${props.artistId}` }
+    artistModel.value = null
-    artistModel.value = seed
+    return
-    artistOptions.value = [seed]
   }
+  if (artistModel.value?.id === id) return
+  artistModel.value = artistOptions.value.find(a => a.id === id)
+    || { id, name: `Artist #${id}` }
+}
+
+async function loadArtists() {
+  artistLoading.value = true
+  try {
+    artistOptions.value = await api.get('/api/artists/names')
+  } catch {
+    artistOptions.value = []
+  } finally {
+    artistLoading.value = false
+  }
+}
+
+onMounted(async () => {
+  await Promise.all([platformsStore.loadAll(), loadArtists()])
+  selectArtistById(props.artistId)
 })
 
-watch(() => props.artistId, (val) => {
+watch(() => props.artistId, (val) => selectArtistById(val))
-  if (val == null) {
-    artistModel.value = null
-  } else if (artistModel.value?.id !== val) {
-    const seed = { id: val, name: `Artist #${val}` }
-    artistModel.value = seed
-    artistOptions.value = [seed]
-  }
-})
 
 watch(() => props.platform, (val) => {
   if (platformModel.value !== val) platformModel.value = val || null

frontend/src/components/settings/DiscordRepairCard.vue

@@ -0,0 +1,118 @@
+<template>
+  <!-- #3999: Discord downloads made before the naming fix landed in a `None`
+       folder with no post and a download-time date. This re-downloads them
+       cleanly. Preview first; the apply deletes files. -->
+  <MaintenanceTile
+    icon="mdi-download-off-outline"
+    title="Repair Discord downloads"
+    blurb="Re-download Discord images that were saved with no post and the wrong date."
+    destructive
+    :open="applying || previewing"
+  >
+    <p class="text-body-2 mb-3">
+      Before the naming fix, every Discord download was saved into a folder
+      called <code>None</code>. Those images never got a post, so they show the
+      time Curator downloaded them rather than when they were posted.
+      <strong>Apply</strong> deletes those images, clears Discord from the
+      download history, and starts a fresh backfill of every Discord source so
+      they come back with their posts and dates. Tags you added by hand to those
+      images are lost. Nothing outside a Discord <code>None</code> folder is
+      touched.
+    </p>
+
+    <div class="d-flex align-center flex-wrap" style="gap: 12px;">
+      <v-btn
+        color="primary" variant="tonal" rounded="pill"
+        :loading="previewing" :disabled="applying" @click="preview"
+      >
+        <v-icon start>mdi-magnify</v-icon> Preview
+      </v-btn>
+      <v-btn
+        color="error" rounded="pill"
+        :loading="applying"
+        :disabled="previewing || !canApply"
+        @click="confirmOpen = true"
+      >
+        <v-icon start>mdi-download-off-outline</v-icon> Apply
+      </v-btn>
+    </div>
+
+    <v-alert
+      v-if="summary" :type="summaryType" variant="tonal" class="mt-4"
+      density="comfortable"
+    >
+      <span v-if="applied">
+        Deleted {{ summary.images_deleted }} image(s) and cleared
+        {{ summary.archive_entries }} Discord download record(s). Backfills
+        started on {{ summary.backfills_started }} Discord source(s).
+      </span>
+      <span v-else-if="hasWork">
+        {{ summary.images }} broken image(s) ({{ humanBytes(summary.bytes) }})
+        across {{ summary.directories }} folder(s), and
+        {{ summary.archive_entries }} Discord download record(s) to clear.
+        {{ summary.sources }} Discord source(s) will backfill again.
+      </span>
+      <span v-else>Nothing to repair — no broken Discord downloads found.</span>
+
+      <div v-if="applied && summary.files_failed" class="mt-1 text-caption">
+        {{ summary.files_failed }} file(s) could not be removed — see the worker log.
+      </div>
+      <div v-if="applied && summary.remaining" class="mt-1 text-caption">
+        {{ summary.remaining }} broken image(s) are still present. Run it again.
+      </div>
+    </v-alert>
+
+    <QueueStatusBar queue="maintenance_long" queue-label="Maintenance" />
+
+    <v-dialog v-model="confirmOpen" max-width="440">
+      <v-card>
+        <v-card-title>Repair Discord downloads?</v-card-title>
+        <v-card-text class="text-body-2">
+          This permanently deletes <strong>{{ summary?.images ?? 0 }}</strong>
+          Discord image(s) ({{ humanBytes(summary?.bytes) }}) and re-downloads
+          them from Discord with their posts and dates. Any tags you added to
+          those images by hand will not come back.
+        </v-card-text>
+        <v-card-actions>
+          <v-spacer />
+          <v-btn variant="text" @click="confirmOpen = false">Cancel</v-btn>
+          <v-btn color="error" @click="apply">Repair</v-btn>
+        </v-card-actions>
+      </v-card>
+    </v-dialog>
+  </MaintenanceTile>
+</template>
+
+<script setup>
+import { computed, ref } from 'vue'
+
+import { useMaintenanceTask } from '../../composables/useMaintenanceTask.js'
+import { humanBytes } from '../../utils/bytes.js'
+import MaintenanceTile from '../common/MaintenanceTile.vue'
+import QueueStatusBar from './QueueStatusBar.vue'
+
+const confirmOpen = ref(false)
+
+const { previewing, applying, summary, applied, preview, apply: applyTask } = useMaintenanceTask({
+  endpoint: '/api/admin/maintenance/repair-discord-downloads',
+  storageKey: 'fc.maint.repairDiscordDownloads',
+  appliedToast: 'Discord downloads cleared — backfills started',
+})
+
+// The archive count matters too: files could already be gone while gallery-dl
+// still believes it has them, which would stop the backfill re-fetching.
+const hasWork = computed(
+  () => !!summary.value && (summary.value.images > 0 || summary.value.archive_entries > 0),
+)
+const canApply = computed(() => hasWork.value && !applied.value)
+const summaryType = computed(() => {
+  if (applied.value) return 'success'
+  return hasWork.value ? 'info' : 'success'
+})
+
+// The confirm dialog gates the destructive apply; close it, then run.
+function apply () {
+  confirmOpen.value = false
+  applyTask()
+}
+</script>

frontend/src/components/settings/MaintenancePanel.vue

@@ -15,6 +15,7 @@
         <ImportFiltersForm />
         <TranslationCard />
         <DiscordGroupingCard />
+        <DiscordRepairCard />
         <PostAssociationsCard />
         <MembershipRosterCard />
         <MembershipSuggestionsCard />
@@ -85,6 +86,7 @@ import VideoEmbeddingCard from './VideoEmbeddingCard.vue'
 import CropProposersCard from './CropProposersCard.vue'
 import HeadsCard from './HeadsCard.vue'
 import DiscordGroupingCard from './DiscordGroupingCard.vue'
+import DiscordRepairCard from './DiscordRepairCard.vue'
 import MembershipRosterCard from './MembershipRosterCard.vue'
 import MembershipSuggestionsCard from './MembershipSuggestionsCard.vue'
 import PostAssociationsCard from './PostAssociationsCard.vue'

frontend/src/components/subscriptions/MembershipReconcileCard.vue

@@ -1,12 +1,20 @@
 <template>
   <!-- Renders nothing when there is nothing to say — same posture as
        NeedsAttentionCard. A reconciliation card that always shows would train
-       the operator to scroll past it. -->
+       the operator to scroll past it. It can also be DISMISSED, and stays
-  <v-card v-if="anythingToSay" variant="tonal" class="mb-4 fc-recon">
+       dismissed until what it would say changes. -->
+  <v-card v-if="visible" variant="tonal" class="mb-4 fc-recon">
     <v-card-text>
+      <v-btn
+        icon="mdi-close" size="small" variant="text" class="fc-recon__dismiss"
+        title="Hide until something changes" aria-label="Hide until something changes"
+        @click="dismiss"
+      />
       <div v-for="p in interesting" :key="p.platform" class="fc-recon__platform">
-        <!-- Bucket 1: the adoption win. The only direction with an action,
+        <!-- The adoption win: subscriptions FC doesn't follow yet. The only
-             because adding a source is the reversible half. -->
+             bucket shown. Sources you follow but no longer pay for are not
+             listed here (operator, 2026-09-13) — the membership sweep stops
+             pulling those instead (#3995). -->
         <template v-if="p.subscribed_not_tracked.length">
           <div class="fc-recon__head">
             <v-icon icon="mdi-account-plus-outline" size="small" class="me-2" />
@@ -36,37 +44,13 @@
           </div>
         </template>
 
-        <!-- Bucket 2: REPORT ONLY. No disable control here by design — the
+        <!-- The roster could not be trusted. Said in words: an empty list here
-             source list on this same page is where that decision belongs. -->
+             must never read as "all clear". -->
-        <template v-if="p.tracked_not_subscribed.length">
-          <div class="fc-recon__head">
-            <v-icon icon="mdi-help-circle-outline" size="small" class="me-2" />
-            <strong>
-              {{ p.tracked_not_subscribed.length }}
-              {{ p.platform }}
-              {{ p.tracked_not_subscribed.length === 1 ? 'source' : 'sources' }}
-              your roster doesn't account for
-            </strong>
-          </div>
-          <div v-for="s in p.tracked_not_subscribed" :key="s.id" class="fc-recon__row">
-            <div class="fc-recon__body">
-              <strong>{{ s.artist.name }}</strong>
-              <div class="fc-recon__dim">{{ reasonFor(s) }}</div>
-            </div>
-          </div>
-          <div class="fc-recon__dim fc-recon__note">
-            Nothing has been changed. If you want one of these to stop checking,
-            disable it in the list below.
-          </div>
-        </template>
-
-        <!-- The roster could not be trusted, so bucket 2 was not computed. Said
-             in words: an empty list here must never read as "all clear". -->
         <div v-if="!p.fresh" class="fc-recon__dim fc-recon__note">
           <v-icon icon="mdi-clock-alert-outline" size="small" class="me-1" />
           <template v-if="!p.last_success_at">
             Your {{ p.platform }} roster has never synced, so FC can't tell which
-            sources you still subscribe to.
+            creators you subscribe to.
           </template>
           <template v-else>
             Your {{ p.platform }} roster last synced
@@ -81,44 +65,62 @@
 </template>
 
 <script setup>
-import { computed, onMounted } from 'vue'
+import { computed, onMounted, ref } from 'vue'
 
 import { formatRelative } from '../../utils/date.js'
 import { useMembershipReconcileStore } from '../../stores/membershipReconcile.js'
 
-// #387 C4. Two directions, deliberately unequal: subscriptions FC doesn't
+// #387 C4. Offers the subscriptions FC doesn't follow yet. The other direction
-// follow get a one-click add, while sources the roster doesn't account for are
+// (sources FC follows that the roster says you no longer pay for) used to be
-// REPORTED ONLY (operator decision, 2026-09-11). The asymmetry is the point —
+// listed here as a report. The operator didn't want it listed (2026-09-13); the
-// adding a source is trivially undone, and "you no longer subscribe to this" is
+// membership sweep stops pulling those sources instead (#3995).
-// computed from an absence that has three possible causes.
 const store = useMembershipReconcileStore()
 
 // An untrustworthy roster is only worth mentioning when there is something it
 // would have reconciled — otherwise a failed sweep on a platform with no
 // sources yet would put a warning on a page with nothing to warn about.
 const interesting = computed(() => store.platforms.filter(
-  p => p.subscribed_not_tracked.length
+  p => p.subscribed_not_tracked.length || (!p.fresh && p.tracked_total)
-    || p.tracked_not_subscribed.length
-    || (!p.fresh && p.tracked_total)
 ))
-const anythingToSay = computed(() => interesting.value.length > 0)
 
-function reasonFor (s) {
+// Dismissal is keyed to WHAT the card says, not to the card: a fingerprint of
-  if (s.basis === 'lapsed') {
+// the offered memberships and any stale-roster warnings. Dismissing hides this
-    return `Your membership reads "${s.membership?.status}" — you're not a paying supporter of this creator right now.`
+// exact set; a new subscription (or a roster going stale) changes the
-  }
+// fingerprint and brings the card back. Per-browser, which is enough for a
-  if (s.basis === 'absent_exact') {
+// single-operator instance.
-    return "FC knows this creator's id on the platform, and it isn't in your roster."
+const DISMISS_KEY = 'fc.recon.dismissed'
-  }
+const fingerprint = computed(() => interesting.value
-  // absent_handle — the weakest claim, and it says so. A renamed creator looks
+  .flatMap(p => [
-  // exactly like this, which is why it is not phrased as a conclusion.
+    ...p.subscribed_not_tracked.map(m => `${p.platform}:${m.id}`),
-  return "No membership matched this source's address. It may simply have been renamed."
+    ...(p.fresh ? [] : [`${p.platform}:stale`]),
+  ])
+  .sort()
+  .join('|'))
+
+function readDismissed () {
+  try { return localStorage.getItem(DISMISS_KEY) } catch { return null }
 }
+const dismissed = ref(readDismissed())
+
+function dismiss () {
+  dismissed.value = fingerprint.value
+  try { localStorage.setItem(DISMISS_KEY, fingerprint.value) } catch { /* private mode */ }
+}
+
+const visible = computed(
+  () => interesting.value.length > 0 && fingerprint.value !== dismissed.value,
+)
 
 onMounted(() => { store.load() })
 </script>
 
 <style scoped>
+.fc-recon { position: relative; }
+.fc-recon__dismiss {
+  position: absolute;
+  top: 6px;
+  right: 6px;
+}
 .fc-recon__platform + .fc-recon__platform {
   margin-top: 16px;
 }

frontend/src/components/subscriptions/SourceRow.vue

@@ -39,8 +39,25 @@
       {{ formatRelative(source.next_check_at, { future: true }) }}
     </td>
     <td>
+      <!-- #3995: the membership sweep stopped this source because paid access
+           ended. First in the chain — it explains why an otherwise healthy
+           source is off. Neutral, never error: nothing is broken. -->
       <v-chip
-        v-if="(source.consecutive_failures || 0) > 0"
+        v-if="membershipStopped"
+        size="x-small" variant="tonal" label
+        prepend-icon="mdi-account-cancel-outline"
+      >Membership ended
+        <v-tooltip activator="parent" location="top" max-width="420">
+          <span>
+            Curator stopped checking this source because your membership
+            {{ membershipStopped.status ? `reads "${membershipStopped.status}"` : 'ended' }}.
+            It starts again on its own if you resubscribe. Turn it back on to
+            keep checking anyway.
+          </span>
+        </v-tooltip>
+      </v-chip>
+      <v-chip
+        v-else-if="(source.consecutive_failures || 0) > 0"
         size="x-small" color="error" variant="tonal" label
       >{{ source.consecutive_failures }}
         <!-- #1: show the actual failure reason on hover instead of a bare count. -->
@@ -109,6 +126,12 @@ const props = defineProps({
 // operator's subscription, not anything FC can retry. The count is only joined
 // in by the list endpoint, so phrase it without one when it's absent rather
 // than rendering a fabricated zero.
+// #3995: set by the membership sweep when it stops a source whose paid access
+// ended; cleared when it resumes, or when the operator toggles the source.
+const membershipStopped = computed(
+  () => props.source.config_overrides?._membership_stopped || null,
+)
+
 const noAccessTip = computed(() => {
   const n = props.source.tier_gated_count
   const what = n

frontend/src/utils/platformColor.js

@@ -1,9 +1,13 @@
 // Single source of truth for platform → color + icon mapping. Used by
-// PlatformChip and any other GS-style platform-tagged surface. The five
+// PlatformChip and any other GS-style platform-tagged surface. The four
 // platforms FC supports map 1:1 to the GS palette; unknown platforms fall
 // back to grey + mdi-web — which is deliberately what a retired platform
-// hits: a pre-#3069 deviantart source row still renders, as its raw key on
+// hits: a pre-#3069 deviantart source row, or a post from pixiv (retired at
-// a grey chip. Operator-confirmed scope 2026-05-27. The ICONS key set is
+// milestone #406), still renders, as its raw key on a grey chip. So a
+// retired platform is REMOVED from these maps, never kept "so old rows
+// look right" — the fallback is what makes old rows look right, and keeping
+// the entry would break the contract pin below. Operator-confirmed scope
+// 2026-05-27. The ICONS key set is
 // pinned against backend known_platform_keys() by
 // tests/test_fe_be_contract.py.
 
@@ -12,7 +16,6 @@ const ICONS = {
   subscribestar: 'mdi-star',
   hentaifoundry: 'mdi-palette',
   discord:       'mdi-discord',
-  pixiv:         'mdi-alpha-p-box',
 }
 
 const COLORS = {
@@ -20,7 +23,6 @@ const COLORS = {
   subscribestar: 'amber',
   hentaifoundry: 'purple',
   discord:       'indigo',
-  pixiv:         'blue',
 }
 
 const LABELS = {
@@ -28,7 +30,6 @@ const LABELS = {
   subscribestar: 'SubscribeStar',
   hentaifoundry: 'HentaiFoundry',
   discord:       'Discord',
-  pixiv:         'Pixiv',
 }
 
 export function platformIcon(platform) {

frontend/src/views/ArtistsView.vue

@@ -58,8 +58,9 @@ useInfiniteScroll(sentinelEl, () => {
 
 onMounted(async () => {
   await platformsStore.loadAll()
-  platformItems.value = (platformsStore.platforms || []).map(p => ({
+  // `list` — the store has no `platforms` property (test/storeUsage.spec.js).
-    title: p.key, value: p.key,
+  platformItems.value = platformsStore.list.map(p => ({
+    title: p.name || p.key, value: p.key,
   }))
   // Apply any deep-linked q (and load). setQuery resets + fetches.
   store.setQuery(searchTerm.value || '')

frontend/src/views/PostsView.vue

@@ -1,5 +1,8 @@
 <template>
-  <v-container class="pt-2 pb-6" max-width="900">
+  <!-- Width is set in CSS, not with `max-width` here: below 1600px it is
+       today's 900px column, and above it the feed widens and gains the day
+       gutter (milestone #407). -->
+  <v-container fluid class="pt-2 pb-6 fc-posts">
     <!-- In-context view: deep-linked to one post, with bidirectional infinite
          scroll — newer posts load above, older posts below. -->
     <template v-if="postIdFilter != null">
@@ -48,14 +51,19 @@
     </template>
 
     <!-- Normal feed -->
-    <template v-else>
+    <div v-else class="fc-posts__main">
-      <FeedStatusRibbon v-if="statusRibbon" />
+      <!-- Filters and status sit in one row above the feed. #407 option E put
-
+           them in a sticky left rail; the operator found it wasted space
+           (2026-09-13), so on a wide window this row lines up with the feed
+           column instead, clear of the day gutter. -->
+      <div class="fc-posts__toolbar">
+        <FeedStatusRibbon v-if="statusRibbon" class="fc-posts__status" />
         <PostsFilterBar
           :artist-id="artistFilter"
           :platform="platformFilter"
           @update:filters="onFilters"
         />
+      </div>
 
       <v-alert v-if="store.error" type="error" variant="tonal" closable class="mb-3">
         {{ String(store.error) }}
@@ -74,14 +82,27 @@
       </div>
 
       <div v-else>
-        <PostCard v-for="p in store.items" :key="p.id" :post="p" />
+        <!-- Day groups (#407 D). The heading sits above its posts on a narrow
+             window and in a sticky left gutter on a wide one. -->
+        <section v-for="d in days" :key="d.key" class="fc-posts__day">
+          <header class="fc-posts__day-head">
+            <span class="fc-posts__day-label">{{ d.label }}</span>
+            <span class="fc-posts__day-count">
+              {{ d.posts.length }} post{{ d.posts.length === 1 ? '' : 's' }}
+              · {{ d.artistCount }} artist{{ d.artistCount === 1 ? '' : 's' }}
+            </span>
+          </header>
+          <div class="fc-posts__day-posts">
+            <PostCard v-for="p in d.posts" :key="p.id" :post="p" />
+          </div>
+        </section>
 
         <div ref="sentinel" class="fc-posts__sentinel">
           <v-progress-circular v-if="store.loading" indeterminate color="accent" size="24" />
           <span v-else-if="store.done" class="fc-posts__end">End of stream</span>
         </div>
       </div>
-    </template>
+    </div>
   </v-container>
 </template>
 
@@ -121,6 +142,48 @@ const hasActiveFilter = computed(() =>
   artistFilter.value != null || platformFilter.value != null || searchFilter.value != null
 )
 
+// --- day groups (#407 D) ---
+// CONSECUTIVE runs, not a bucket per date. The feed's sort key includes
+// `resurfaced_at` (a Discord grouping that grew moves back to the top), which
+// the payload does not carry, so a resurfaced post can sit above newer ones.
+// Bucketing by date would pull it out of order; a run gives it its own heading
+// where it actually appears. Counts cover what has LOADED, and grow as the
+// infinite scroll fetches more of the same day.
+function dayKey (iso) {
+  const d = new Date(iso)
+  return `${d.getFullYear()}-${d.getMonth()}-${d.getDate()}`
+}
+function dayLabel (iso) {
+  const d = new Date(iso)
+  const today = new Date()
+  const startOf = (x) => new Date(x.getFullYear(), x.getMonth(), x.getDate()).getTime()
+  const days = Math.round((startOf(today) - startOf(d)) / 86400000)
+  if (days === 0) return 'Today'
+  if (days === 1) return 'Yesterday'
+  if (days > 1 && days < 7) return d.toLocaleDateString(undefined, { weekday: 'long' })
+  const sameYear = d.getFullYear() === today.getFullYear()
+  return d.toLocaleDateString(undefined, {
+    month: 'short', day: 'numeric', ...(sameYear ? {} : { year: 'numeric' }),
+  })
+}
+const days = computed(() => {
+  const groups = []
+  for (const p of store.items) {
+    const iso = p.post_date || p.downloaded_at
+    const key = dayKey(iso)
+    let g = groups[groups.length - 1]
+    if (!g || g.dayKey !== key) {
+      // Suffix with the run index so a day that appears twice (see above)
+      // still has a unique v-for key.
+      g = { key: `${key}#${groups.length}`, dayKey: key, label: dayLabel(iso), posts: [], artists: new Set() }
+      groups.push(g)
+    }
+    g.posts.push(p)
+    if (p.artist?.id != null) g.artists.add(p.artist.id)
+  }
+  return groups.map((g) => ({ ...g, artistCount: g.artists.size }))
+})
+
 // Drop only `post_id` and stay where we are — keeps Browse's `tab=posts` (and
 // any active artist/platform scope) intact instead of resetting the surface.
 const allPostsTarget = computed(() => {
@@ -232,6 +295,61 @@ onUnmounted(() => { teardownFeed(); teardownAround() })
 </script>
 
 <style scoped>
+/* Below the breakpoint: today's layout exactly — a 900px column with the
+   filters and ribbon inline above the feed. */
+.fc-posts { max-width: 900px; }
+.fc-posts__day-head {
+  display: flex;
+  align-items: baseline;
+  gap: 10px;
+  padding: 4px 0 8px;
+  color: rgb(var(--v-theme-on-surface-variant));
+}
+.fc-posts__day-label {
+  font-family: 'Fraunces', Georgia, serif;
+  font-weight: 600;
+  font-size: 1rem;
+  color: rgb(var(--v-theme-accent));
+}
+.fc-posts__day-count { font-size: 0.78rem; }
+
+/* Wide window (#407 A + D). Each day's heading moves into a sticky gutter
+   beside its posts; the column widens and the cards switch to their filmstrip
+   layout on their own (PostCard measures itself). The toolbar lines up with the
+   feed column, clear of the gutter. */
+@media (min-width: 1600px) {
+  .fc-posts { max-width: 2080px; }
+  .fc-posts__main { max-width: 2080px; margin: 0 auto; }
+  .fc-posts__toolbar {
+    display: flex;
+    align-items: center;
+    flex-wrap: wrap;
+    gap: 8px 24px;
+    margin-left: calc(150px + 24px);
+    margin-bottom: 8px;
+  }
+  /* Status reads after the filters on a wide row, but stays first when the
+     narrow layout stacks them (it is the front door's headline). */
+  .fc-posts__status { order: 2; padding: 0; }
+  .fc-posts__toolbar :deep(.fc-posts-filters) { padding-bottom: 0; }
+  .fc-posts__day {
+    display: grid;
+    grid-template-columns: 150px minmax(0, 1fr);
+    gap: 0 24px;
+  }
+  .fc-posts__day-head {
+    position: sticky;
+    top: calc(var(--fc-nav-h, 64px) + 16px);
+    align-self: start;
+    flex-direction: column;
+    align-items: flex-end;
+    gap: 2px;
+    padding-top: 12px;
+    text-align: right;
+  }
+  .fc-posts__day-label { font-size: 1.1rem; }
+}
+
 .fc-posts__loading,
 .fc-posts__empty {
   display: flex;

frontend/test/storeUsage.spec.js

@@ -0,0 +1,63 @@
+// Reads of a store property that does not exist.
+//
+// JavaScript returns `undefined` for a missing property instead of failing, and
+// the frontend CI has no type-checker to catch it. `platformsStore.platforms`
+// was read for months by the Latest feed's filter bar and the Artists view. The
+// store exposes `list` and `byKey`, so both platform dropdowns opened empty and
+// only someone clicking them noticed.
+//
+// This scans the source for `platformsStore.<name>` and checks each name
+// against what the store really defines.
+
+import { readdirSync, readFileSync, statSync } from 'node:fs'
+import { join } from 'node:path'
+import { fileURLToPath } from 'node:url'
+
+import { createPinia, setActivePinia } from 'pinia'
+import { describe, expect, it } from 'vitest'
+
+import { usePlatformsStore } from '../src/stores/platforms.js'
+
+const SRC = fileURLToPath(new URL('../src', import.meta.url))
+const READ = /\bplatformsStore\.([A-Za-z_$][\w$]*)/g
+
+function sourceFiles (dir) {
+  return readdirSync(dir).flatMap((name) => {
+    const path = join(dir, name)
+    if (statSync(path).isDirectory()) return sourceFiles(path)
+    return /\.(vue|js)$/.test(name) ? [path] : []
+  })
+}
+
+function unknownReads (text, known) {
+  return [...text.matchAll(READ)].map(m => m[1]).filter(name => !known.has(name))
+}
+
+function storeKeys () {
+  setActivePinia(createPinia())
+  return new Set(Object.keys(usePlatformsStore()))
+}
+
+describe('platforms store usage', () => {
+  it('every platformsStore.<name> read in src names something the store defines', () => {
+    const known = storeKeys()
+    const offenders = sourceFiles(SRC).flatMap((file) =>
+      unknownReads(readFileSync(file, 'utf8'), known)
+        .map(name => `${file.slice(SRC.length + 1)}: platformsStore.${name}`),
+    )
+    expect(offenders).toEqual([])
+  })
+
+  it('the scan finds the read that shipped broken (positive control)', () => {
+    const known = storeKeys()
+    expect(known.has('list')).toBe(true)
+    expect(unknownReads('(platformsStore.platforms || []).map(p => p)', known))
+      .toEqual(['platforms'])
+  })
+
+  it('the scan actually walks the source tree', () => {
+    const hasRead = /\bplatformsStore\./
+    const withReads = sourceFiles(SRC).filter(f => hasRead.test(readFileSync(f, 'utf8')))
+    expect(withReads.length).toBeGreaterThan(2)
+  })
+})

tests/fixtures/discord_attachment_sidecar.json

@@ -0,0 +1,28 @@
+{
+  "author": "example-artist",
+  "author_files": [],
+  "author_id": "100000000000000001",
+  "category": "discord",
+  "channel": "nsfw-drops",
+  "channel_id": "200000000000000002",
+  "channel_topic": "",
+  "channel_type": 0,
+  "date": "2024-07-16 16:43:23",
+  "extension": "png",
+  "filename": "image",
+  "files": [],
+  "is_thread": false,
+  "message": "",
+  "message_id": "300000000000000003",
+  "num": 1,
+  "owner_id": "100000000000000001",
+  "parent": "",
+  "parent_id": "",
+  "parent_type": 0,
+  "server": "Example Server",
+  "server_files": [],
+  "server_id": "400000000000000004",
+  "subcategory": "channel",
+  "type": "attachment",
+  "url": "https://cdn.discordapp.com/attachments/200000000000000002/500000000000000005/image.png"
+}

tests/test_api_artists_create.py

@@ -72,3 +72,16 @@ async def test_patch_rename_validation(client):
         f"/api/artists/{created['id']}", json={})).status_code == 400
     assert (await client.patch(
         "/api/artists/999999", json={"name": "Ghost"})).status_code == 404
+
+
+@pytest.mark.asyncio
+async def test_names_lists_every_artist_alphabetically(client):
+    """The Latest feed's artist filter shows this list before anything is typed.
+    `autocomplete` stays empty for an empty query; this is the full list."""
+    for name in ("zed", "Alice", "bob"):
+        await client.post("/api/artists", json={"name": name})
+    resp = await client.get("/api/artists/names")
+    assert resp.status_code == 200
+    body = await resp.get_json()
+    assert [a["name"] for a in body] == ["Alice", "bob", "zed"]
+    assert set(body[0]) == {"id", "name", "slug"}

tests/test_discord_repair.py

@@ -0,0 +1,170 @@
+"""The Discord repair (#3999): forget the broken downloads, delete them, backfill again.
+
+The danger in a repair like this is reach. It deletes files and clears
+gallery-dl's memory of what it fetched, so most of these tests pin what it must
+NOT touch: other platforms' archive entries, Discord server assets, images
+outside a `discord/None/` folder, and a correctly named Discord file that
+happens to share a folder name.
+"""
+
+import sqlite3
+
+import pytest
+from sqlalchemy import func, select
+
+from backend.app.models import Artist, ImageRecord, Source
+from backend.app.services import discord_repair
+from backend.app.services.gallery_dl import archive_path
+from backend.app.services.source_service import BACKFILL_MAX_CHUNKS
+
+
+def _archive(tmp_path, entries):
+    path = archive_path(tmp_path)
+    path.parent.mkdir(parents=True, exist_ok=True)
+    conn = sqlite3.connect(path)
+    # The table gallery-dl itself creates (gallery_dl/archive.py).
+    conn.execute("CREATE TABLE archive (entry TEXT PRIMARY KEY) WITHOUT ROWID")
+    conn.executemany("INSERT INTO archive (entry) VALUES (?)", [(e,) for e in entries])
+    conn.commit()
+    conn.close()
+    return path
+
+
+def _entries(path):
+    conn = sqlite3.connect(path)
+    try:
+        return sorted(r[0] for r in conn.execute("SELECT entry FROM archive"))
+    finally:
+        conn.close()
+
+
+# --- the archive ------------------------------------------------------------
+
+
+def test_only_discord_message_entries_are_forgotten(tmp_path):
+    path = _archive(tmp_path, [
+        "discord300000000000000003_1",
+        "discord300000000000000004_2",
+        "discordasset_400000000000000004_9",
+        "hentaifoundry12345",
+    ])
+    assert discord_repair.count_archive_entries(path) == 2
+    assert discord_repair.forget_archive_entries(path) == 2
+    assert _entries(path) == ["discordasset_400000000000000004_9", "hentaifoundry12345"]
+
+
+def test_counting_changes_nothing(tmp_path):
+    path = _archive(tmp_path, ["discord1_1", "discord2_1"])
+    discord_repair.count_archive_entries(path)
+    assert _entries(path) == ["discord1_1", "discord2_1"]
+
+
+def test_a_missing_archive_or_table_is_zero_not_an_error(tmp_path):
+    assert discord_repair.count_archive_entries(tmp_path / "nope.sqlite3") == 0
+    empty = tmp_path / "empty.sqlite3"
+    sqlite3.connect(empty).close()
+    assert discord_repair.forget_archive_entries(empty) == 0
+
+
+# --- the folders ------------------------------------------------------------
+
+
+def test_broken_directories_finds_every_artist_folder_including_case_twins(tmp_path):
+    for artist in ("Conto", "conto", "knuxy"):
+        (tmp_path / artist / "discord" / "None").mkdir(parents=True)
+    (tmp_path / "conto" / "discord" / "general").mkdir(parents=True)
+    (tmp_path / "conto" / "patreon" / "None").mkdir(parents=True)
+    found = [
+        p.relative_to(tmp_path).as_posix()
+        for p in discord_repair.broken_directories(tmp_path)
+    ]
+    assert found == ["Conto/discord/None", "conto/discord/None", "knuxy/discord/None"]
+
+
+def test_sweep_removes_leftover_sidecars_and_the_empty_folder(tmp_path):
+    d = tmp_path / "conto" / "discord" / "None"
+    d.mkdir(parents=True)
+    (d / "image.json").write_text("{}")
+    (d / "20240716_None_rejected.png").write_bytes(b"x")
+    removed, gone = discord_repair._sweep_directory(d)
+    assert (removed, gone) == (2, True)
+    assert not d.exists()
+
+
+# --- the whole repair, against the database -----------------------------------
+
+
+def _image(db_sync, artist, path, sha):
+    img = ImageRecord(
+        artist_id=artist.id, path=str(path), sha256=sha * 64, size_bytes=100,
+        mime="image/png", origin="downloaded",
+    )
+    db_sync.add(img)
+    return img
+
+
+@pytest.mark.integration
+def test_repair_deletes_only_broken_discord_images_and_rearms_discord_backfills(
+    db_sync, tmp_path,
+):
+    artist = Artist(name="Conto", slug="conto")
+    db_sync.add(artist)
+    db_sync.flush()
+    discord = Source(
+        artist_id=artist.id, platform="discord", url="https://discord.com/channels/1/2",
+        enabled=True, config_overrides={"_backfill_state": "complete", "_backfill_cursor": "x"},
+    )
+    patreon = Source(
+        artist_id=artist.id, platform="patreon", url="https://www.patreon.com/conto",
+        enabled=True, config_overrides={},
+    )
+    db_sync.add_all([discord, patreon])
+
+    broken_dir = tmp_path / "conto" / "discord" / "None"
+    good_dir = tmp_path / "conto" / "discord" / "general"
+    patreon_dir = tmp_path / "conto" / "patreon" / "None"
+    for d in (broken_dir, good_dir, patreon_dir):
+        d.mkdir(parents=True)
+    broken = broken_dir / "20240716_None_image.png"
+    good = good_dir / "20240716_300000000000000003_01_image.png"
+    # A `None` folder under another platform, and a `_None_` name outside one.
+    # Neither is the bug's pair, so neither may be touched.
+    elsewhere = patreon_dir / "20240716_None_image.png"
+    for f in (broken, good, elsewhere):
+        f.write_bytes(b"x")
+    (broken_dir / "image.json").write_text("{}")
+    _image(db_sync, artist, broken, "a")
+    _image(db_sync, artist, good, "b")
+    _image(db_sync, artist, elsewhere, "c")
+    db_sync.commit()
+    _archive(tmp_path, ["discord300000000000000003_1", "hentaifoundry1"])
+
+    preview = discord_repair.repair_discord_downloads(db_sync, images_root=tmp_path, dry_run=True)
+    assert preview["images"] == 1
+    assert preview["archive_entries"] == 1
+    assert broken.exists()
+
+    result = discord_repair.repair_discord_downloads(db_sync, images_root=tmp_path, dry_run=False)
+    assert result["images_deleted"] == 1
+    assert result["remaining"] == 0
+    assert result["backfills_started"] == 1
+
+    assert not broken.exists() and not broken_dir.exists()
+    assert good.exists() and elsewhere.exists()
+    assert _entries(archive_path(tmp_path)) == ["hentaifoundry1"]
+
+    kept = db_sync.execute(select(func.count(ImageRecord.id))).scalar_one()
+    assert kept == 2
+
+    rows = {
+        platform: (runs, overrides)
+        for platform, runs, overrides in db_sync.execute(
+            select(Source.platform, Source.backfill_runs_remaining, Source.config_overrides)
+        ).all()
+    }
+    runs, overrides = rows["discord"]
+    assert runs == BACKFILL_MAX_CHUNKS
+    assert overrides["_backfill_state"] == "running"
+    assert "_backfill_cursor" not in overrides
+    # Only Discord sources are re-armed.
+    assert rows["patreon"][1] == {}

tests/test_gallery_dl_naming.py

@@ -0,0 +1,117 @@
+"""gallery-dl naming patterns, rendered against the metadata gallery-dl really emits.
+
+gallery-dl does not fail on a format field that names a key the extractor never
+sets. It renders "None" and carries on. That is how every Discord download
+landed in a `None/` directory as `<date>_None_<name>`: the patterns asked for
+`{channel[name]}` and `{id}`, and the real metadata has a string `channel` and
+`message_id`, with no `id` at all. The mismatch also broke sidecar pairing, so
+no Discord file ever got a Post or a post date.
+
+The fixture keeps the key set and value TYPES of a real attachment sidecar from
+the operator's instance (2026-09-13), with every value invented. Rendering
+through Python's own formatter raises on a missing key or a subscript into a
+string, which is the loud failure gallery-dl does not give.
+"""
+
+import json
+import string
+from datetime import datetime
+from pathlib import Path
+
+import pytest
+
+from backend.app.services.gallery_dl import (
+    DISCORD_DIRECTORY,
+    DISCORD_FILENAME,
+    GalleryDLService,
+    SourceConfig,
+    sidecar_name_for,
+)
+from backend.app.utils.sidecar import find_sidecar
+
+_FIXTURE = Path(__file__).parent / "fixtures" / "discord_attachment_sidecar.json"
+
+
+@pytest.fixture
+def kwdict():
+    data = json.loads(_FIXTURE.read_text())
+    # gallery-dl hands the formatter a datetime; the JSON sidecar stores it as text.
+    data["date"] = datetime.strptime(data["date"], "%Y-%m-%d %H:%M:%S")
+    return data
+
+
+def _render(pattern, kwdict):
+    return string.Formatter().vformat(pattern, (), kwdict)
+
+
+def test_the_discord_filename_renders_from_real_keys(kwdict):
+    name = _render(DISCORD_FILENAME, kwdict)
+    assert "None" not in name
+    assert name == "20240716_300000000000000003_01_image.png"
+
+
+def test_the_discord_directory_renders_from_real_keys(kwdict):
+    assert [_render(p, kwdict) for p in DISCORD_DIRECTORY] == ["nsfw-drops"]
+
+
+@pytest.mark.parametrize(
+    "broken", ["{channel[name]}", "{date:%Y%m%d}_{id}_{filename}.{extension}"],
+)
+def test_the_patterns_that_shipped_would_have_failed_here(kwdict, broken):
+    """Positive control: the two patterns that produced `None/..._None_...`
+    must fail this renderer, or the tests above prove nothing."""
+    with pytest.raises((KeyError, TypeError)):
+        _render(broken, kwdict)
+
+
+def test_the_sidecar_is_named_exactly_like_its_media(kwdict, tmp_path):
+    """So `find_sidecar` pairs them on its first candidate, and two attachments
+    that share an original name (`image.png`) can never share a sidecar."""
+    media = tmp_path / _render(DISCORD_FILENAME, kwdict)
+    sidecar = tmp_path / _render(sidecar_name_for(DISCORD_FILENAME), kwdict)
+    media.write_bytes(b"x")
+    sidecar.write_text("{}")
+    assert find_sidecar(media) == sidecar
+
+
+def test_two_attachments_with_the_same_original_name_get_distinct_sidecars(kwdict):
+    other = {**kwdict, "message_id": "300000000000000099"}
+    pattern = sidecar_name_for(DISCORD_FILENAME)
+    assert _render(pattern, kwdict) != _render(pattern, other)
+
+
+def test_sidecar_name_for_needs_an_extension_suffix():
+    assert sidecar_name_for("{a}_{b}.{extension}") == "{a}_{b}.json"
+    assert sidecar_name_for("{a}_{b}") is None
+
+
+# --- the config gallery-dl is actually given -----------------------------------
+
+
+@pytest.fixture
+def gdl(tmp_path):
+    return GalleryDLService(images_root=tmp_path / "images", validate_files=False)
+
+
+def _discord_section(gdl, **overrides):
+    cfg = gdl._build_config_for_source(
+        platform="discord", source_config=SourceConfig(**overrides), artist_slug="a",
+    )
+    return cfg["extractor"]["discord"]
+
+
+def test_discord_config_carries_the_mirrored_sidecar(gdl):
+    section = _discord_section(gdl)
+    assert section["filename"] == DISCORD_FILENAME
+    assert section["directory"] == DISCORD_DIRECTORY
+    assert section["postprocessors"][0]["filename"] == sidecar_name_for(DISCORD_FILENAME)
+
+
+def test_a_filename_override_keeps_the_sidecar_mirrored(gdl):
+    section = _discord_section(gdl, filename_pattern="{message_id}_{num}.{extension}")
+    assert section["postprocessors"][0]["filename"] == "{message_id}_{num}.json"
+
+
+def test_no_metadata_means_no_discord_postprocessor(gdl):
+    section = _discord_section(gdl, save_metadata=False)
+    assert "postprocessors" not in section

tests/test_membership_lapses.py

@@ -0,0 +1,190 @@
+"""#3995: stop pulling a source once the account stops paying, resume on resubscribe.
+
+Operator, 2026-09-13: "if I kill a subscription on patreon I would like the
+pulling to stop on curator as well", with automatic resume when they resubscribe.
+
+Stopping a source is easy. Not stopping the wrong one is the work, so most of
+these pin refusals: an absent membership is never a lapse, an unknown status is
+never a lapse, a stale roster decides nothing, a paid-through period is honoured,
+and the operator's own on/off choice always outranks the sweep in both directions.
+"""
+from datetime import UTC, datetime, timedelta
+
+import pytest
+from sqlalchemy import select
+
+from backend.app.models import Artist, Source
+from backend.app.services.membership_reconcile import (
+    KEPT_KEY,
+    STOPPED_KEY,
+    apply_membership_lapses,
+)
+from backend.app.services.membership_roster import ROSTER_STALE_AFTER
+from backend.app.services.source_service import SourceService
+from tests.roster_builders import membership as _membership
+from tests.roster_builders import synced as _synced
+
+pytestmark = pytest.mark.integration
+
+
+async def _source(
+    db, *, overrides=None, enabled=True, url="https://www.patreon.com/an-old-handle",
+):
+    artist = Artist(name="Maewix", slug="maewix")
+    db.add(artist)
+    await db.flush()
+    s = Source(
+        artist_id=artist.id, platform="patreon", url=url, enabled=enabled,
+        config_overrides={"patreon_campaign_id": "c1", **(overrides or {})},
+        last_error="boom", error_type="tier_limited", consecutive_failures=3,
+    )
+    db.add(s)
+    await db.flush()
+    return s.id
+
+
+async def _state(db, source_id):
+    row = (await db.execute(
+        select(Source.enabled, Source.config_overrides, Source.error_type,
+               Source.consecutive_failures).where(Source.id == source_id)
+    )).one()
+    return row
+
+
+@pytest.mark.asyncio
+async def test_a_lapsed_membership_stops_its_source_with_a_clean_slate(db):
+    sid = await _source(db)
+    await _membership(db, campaign="c1", status="former_patron")
+    await _synced(db)
+    await db.commit()
+
+    out = await apply_membership_lapses(db, platform="patreon")
+    assert out["stopped"] == 1
+
+    enabled, co, error_type, failures = await _state(db, sid)
+    assert enabled is False
+    assert co[STOPPED_KEY]["status"] == "former_patron"
+    assert co["patreon_campaign_id"] == "c1"  # the identity cache survives
+    assert (error_type, failures) == (None, 0)
+
+
+@pytest.mark.asyncio
+async def test_the_paid_through_period_is_honoured(db):
+    """Patreon keeps access until the billing period ends, and says when."""
+    sid = await _source(db)
+    later = (datetime.now(UTC) + timedelta(days=10)).isoformat()
+    await _membership(
+        db, campaign="c1", status="former_patron",
+        details={"member": {"access_expires_at": later}},
+    )
+    await _synced(db)
+    await db.commit()
+
+    assert (await apply_membership_lapses(db, platform="patreon"))["stopped"] == 0
+    assert (await _state(db, sid)).enabled is True
+
+
+@pytest.mark.asyncio
+async def test_an_absent_membership_is_never_a_lapse(db):
+    """No match has innocent causes (a rename, a never-walked source), so
+    absence alone must never switch a source off."""
+    sid = await _source(db, overrides={"patreon_campaign_id": "nobody-has-this"})
+    await _membership(db, campaign="c1", status="former_patron", details={})
+    await _synced(db)
+    await db.commit()
+
+    assert (await apply_membership_lapses(db, platform="patreon"))["stopped"] == 0
+    assert (await _state(db, sid)).enabled is True
+
+
+@pytest.mark.asyncio
+async def test_an_unrecognised_status_is_never_a_lapse(db):
+    sid = await _source(db)
+    await _membership(db, campaign="c1", status="some_word_nobody_characterised")
+    await _synced(db)
+    await db.commit()
+
+    assert (await apply_membership_lapses(db, platform="patreon"))["stopped"] == 0
+    assert (await _state(db, sid)).enabled is True
+
+
+@pytest.mark.asyncio
+async def test_a_stale_roster_decides_nothing(db):
+    sid = await _source(db)
+    await _membership(db, campaign="c1", status="former_patron")
+    await _synced(db, ago=ROSTER_STALE_AFTER + timedelta(hours=1))
+    await db.commit()
+
+    out = await apply_membership_lapses(db, platform="patreon")
+    assert out["skipped"] == "roster not fresh"
+    assert (await _state(db, sid)).enabled is True
+
+
+@pytest.mark.asyncio
+async def test_resubscribing_resumes_only_what_the_sweep_stopped(db):
+    stopped = await _source(
+        db, enabled=False, overrides={STOPPED_KEY: {"status": "former_patron"}},
+    )
+    await _membership(db, campaign="c1", status="active_patron")
+    await _synced(db)
+    await db.commit()
+
+    assert (await apply_membership_lapses(db, platform="patreon"))["resumed"] == 1
+    enabled, co, _e, _f = await _state(db, stopped)
+    assert enabled is True
+    assert STOPPED_KEY not in co
+
+
+@pytest.mark.asyncio
+async def test_a_source_the_operator_switched_off_is_never_switched_back_on(db):
+    sid = await _source(db, enabled=False)
+    await _membership(db, campaign="c1", status="active_patron")
+    await _synced(db)
+    await db.commit()
+
+    assert (await apply_membership_lapses(db, platform="patreon"))["resumed"] == 0
+    assert (await _state(db, sid)).enabled is False
+
+
+@pytest.mark.asyncio
+async def test_turning_a_stopped_source_back_on_keeps_it_on(db):
+    """Re-enabling a stopped source by hand is a choice to keep pulling a lapsed
+    creator. The next sweep must not undo it."""
+    sid = await _source(
+        db, enabled=False, overrides={STOPPED_KEY: {"status": "former_patron"}},
+    )
+    await _membership(db, campaign="c1", status="former_patron")
+    await _synced(db)
+    await db.commit()
+
+    await SourceService(db).update(sid, enabled=True)
+    enabled, co, _e, _f = await _state(db, sid)
+    assert enabled is True
+    assert co.get(KEPT_KEY) is True and STOPPED_KEY not in co
+
+    assert (await apply_membership_lapses(db, platform="patreon"))["stopped"] == 0
+    assert (await _state(db, sid)).enabled is True
+
+
+@pytest.mark.asyncio
+async def test_switching_a_stopped_source_off_by_hand_drops_the_resume_marker(db):
+    sid = await _source(
+        db, enabled=False, overrides={STOPPED_KEY: {"status": "former_patron"}},
+    )
+    await db.commit()
+
+    await SourceService(db).update(sid, enabled=False)
+    _enabled, co, _e, _f = await _state(db, sid)
+    assert STOPPED_KEY not in co
+
+
+@pytest.mark.asyncio
+async def test_a_kept_source_is_released_once_paid_again(db):
+    sid = await _source(db, overrides={KEPT_KEY: True})
+    await _membership(db, campaign="c1", status="active_patron")
+    await _synced(db)
+    await db.commit()
+
+    await apply_membership_lapses(db, platform="patreon")
+    _enabled, co, _e, _f = await _state(db, sid)
+    assert KEPT_KEY not in co

tests/test_membership_roster.py

@@ -10,11 +10,8 @@ import pytest
 from sqlalchemy import select
 
 from backend.app.models import PlatformMembership
-from backend.app.services.membership_roster import (
+from backend.app.services.membership_roster import touch_membership
-    MEMBERSHIP_STATUS,
+from backend.app.services.native_ingest_common import MEMBERSHIP_STATUS, has_paid_access
-    has_paid_access,
-    touch_membership,
-)
 
 pytestmark = pytest.mark.integration
 

tests/test_patreon_memberships.py

@@ -239,14 +239,72 @@ def test_a_missing_data_list_is_drift(client, payload):
         list(client.iter_memberships(user_id="1"))
 
 
-def test_a_member_with_no_campaign_is_drift(client, payload):
+def _index_of(payload, status):
+    return next(
+        i for i, m in enumerate(payload["data"])
+        if m["attributes"]["patron_status"] == status
+    )
+
+
+@pytest.mark.parametrize("shape", ["null", "absent"])
+def test_an_active_member_with_no_campaign_is_drift(client, payload, shape):
+    """A PAID membership FC cannot attribute must refuse the roster. Dropping it
+    would read downstream as the operator having cancelled it."""
     mangled = json.loads(json.dumps(payload))
-    mangled["data"][0]["relationships"]["campaign"] = {"data": None}
+    rels = mangled["data"][_index_of(mangled, "active_patron")]["relationships"]
+    if shape == "null":
+        rels["campaign"] = {"data": None}
+    else:
+        del rels["campaign"]
     client._request = lambda *a, **k: mangled
     with pytest.raises(PatreonDriftError, match="campaign"):
         list(client.iter_memberships(user_id="1"))
 
 
+def test_an_unrecognised_status_with_no_campaign_is_drift(client, payload):
+    """Only a status KNOWN to mean "not paying" may be skipped. An unknown word
+    could be a paid membership (has_paid_access returns None for it)."""
+    mangled = json.loads(json.dumps(payload))
+    row = mangled["data"][_index_of(mangled, "active_patron")]
+    row["attributes"]["patron_status"] = "some_new_status"
+    del row["relationships"]["campaign"]
+    client._request = lambda *a, **k: mangled
+    with pytest.raises(PatreonDriftError, match="campaign"):
+        list(client.iter_memberships(user_id="1"))
+
+
+def test_a_lapsed_member_whose_creator_is_gone_is_skipped(client, payload):
+    """The live roster's shape (note #3886, CORRECTION 3). A membership that
+    lapsed in 2017 came back with no `campaign` key at all, because the creator's
+    page no longer exists. It used to fail the whole roster. Now it is the only
+    row missing, and every other row still arrives."""
+    mangled = json.loads(json.dumps(payload))
+    lapsed = _index_of(mangled, "former_patron")
+    del mangled["data"][lapsed]["relationships"]["campaign"]
+    client._request = lambda *a, **k: mangled
+    rows = list(client.iter_memberships(user_id="1"))
+    assert len(rows) == len(payload["data"]) - 1
+    assert all(r.campaign_id for r in rows)
+    assert all(r.status == "active_patron" for r in rows)
+
+
+def test_skipping_does_not_end_paging_early(client, payload):
+    """Paging counts the rows the SERVER sent, not the ones kept. Counting kept
+    rows would re-request an offset that was already read, or stop one page
+    short, whenever a row is skipped."""
+    first = json.loads(json.dumps(payload))
+    del first["data"][_index_of(first, "former_patron")]["relationships"]["campaign"]
+    total = 2 * len(payload["data"])
+    first["meta"]["pagination"]["total"] = total
+    second = json.loads(json.dumps(payload))
+    second["meta"]["pagination"]["total"] = total
+    calls = _serve(client, first, second)
+    rows = list(client.iter_memberships(user_id="1"))
+    assert len(calls) == 2
+    assert calls[1][1]["page[offset]"] == str(len(payload["data"]))
+    assert len(rows) == total - 1
+
+
 def test_a_member_with_no_patron_status_is_drift(client, payload):
     mangled = json.loads(json.dumps(payload))
     del mangled["data"][0]["attributes"]["patron_status"]

tests/test_public_svgs.py

@@ -0,0 +1,40 @@
+"""Every SVG the browser loads from `frontend/public/` must parse as XML.
+
+A browser renders an SVG used as an image only if it is well-formed XML, and
+when it is not, nothing reports it: no console error in most browsers, no
+failed build, no failed request — the icon is simply blank. `favicon.svg`
+shipped that way (merge #251) because its comment contained a CSS custom
+property name, and `--` is illegal inside an XML comment. Both the tab icon and
+the nav brand mark went missing, and only a person looking at the page noticed.
+"""
+from __future__ import annotations
+
+import xml.etree.ElementTree as ET
+from pathlib import Path
+
+import pytest
+
+PUBLIC = Path(__file__).resolve().parent.parent / "frontend" / "public"
+SVGS = sorted(PUBLIC.rglob("*.svg"))
+
+
+def test_the_public_dir_has_svgs_to_check():
+    """Guards the guard: a moved directory would otherwise pass vacuously."""
+    assert {p.name for p in SVGS} >= {"favicon.svg", "logo.svg"}
+
+
+@pytest.mark.parametrize("svg", SVGS, ids=lambda p: p.name)
+def test_svg_is_well_formed_xml(svg):
+    root = ET.parse(svg).getroot()
+    assert root.tag == "{http://www.w3.org/2000/svg}svg"
+
+
+def test_the_parser_rejects_the_shape_that_broke_the_favicon():
+    """Positive control: the exact defect must fail this parser, or the
+    parametrized test above proves nothing."""
+    broken = (
+        '<svg xmlns="http://www.w3.org/2000/svg">'
+        "<!-- matches --fc-chrome-rgb exactly --></svg>"
+    )
+    with pytest.raises(ET.ParseError):
+        ET.fromstring(broken)

tests/test_source_service.py

@@ -388,14 +388,17 @@ async def test_update_while_enabled_keeps_failure_state(db):
 async def _source_with_content(db, svc, artist):
     """A source under `artist` with one post + one image it contributed."""
     from backend.app.models import ImageProvenance, ImageRecord, Post
+    # Any registered platform will do — reassign never reads the platform, and
+    # never moves files (the storage path is immutable). This used pixiv until
+    # pixiv was retired (milestone #406) and `create` began refusing it.
     rec = await svc.create(
-        artist_id=artist.id, platform="pixiv",
+        artist_id=artist.id, platform="hentaifoundry",
-        url=f"https://www.pixiv.net/users/{artist.id}",
+        url=f"https://www.hentai-foundry.com/user/{artist.slug}/profile",
     )
     post = Post(source_id=rec.id, artist_id=artist.id, external_post_id="p1")
     db.add(post)
     img = ImageRecord(
-        path=f"/images/{artist.slug}/pixiv/pixiv/1_a_00.jpg",
+        path=f"/images/{artist.slug}/hentaifoundry/hentaifoundry/1_a_00.jpg",
         sha256=str(artist.id).rjust(64, "0"), size_bytes=1, mime="image/jpeg",
         width=1, height=1, origin="imported_filesystem",
         integrity_status="unknown", artist_id=artist.id,

tests/test_subscribestar_memberships.py

@@ -22,8 +22,8 @@ from types import SimpleNamespace
 
 import pytest
 
-from backend.app.services.membership_roster import has_paid_access, roster_user_id
+from backend.app.services.membership_roster import roster_user_id
-from backend.app.services.native_ingest_common import Membership
+from backend.app.services.native_ingest_common import Membership, has_paid_access
 from backend.app.services.subscribestar_client import (
     SubscribeStarAuthError,
     SubscribeStarClient,