feat(translation): tunable acceptance floor (0.90) + per-post sticky override (#155)

The gate at a fixed 0.80 couldn't catch the real pain: Interpreter (fresh ==
cached, verified by probe) confidently mis-detects short ASCII English like
"... WIP Part 1" as German at 0.86 — above the floor — so it was accepted and a
re-translate reproduced it. Confidence alone can't separate the 0.86 collision
(genuine German lands there too), and single-word mis-flags sit at a confident
1.0 no floor catches.

Two operator-approved levers:

- Acceptance floor is now a live Settings value (ImportSettings.
  translation_min_confidence, default 0.90; surfaced in the Translation card), so
  it's tunable without a redeploy. _accept takes the threshold as a parameter.

- Per-post sticky override (Post.translation_override: auto/force/original).
  'force' stores a translation even below the floor (rescue a skipped
  legit-foreign title); 'original' keeps the original and clears any stored
  translation (kill a confident mis-flag no floor catches). The sweep honors it
  on every run and _reset_translations skips 'original', so the choice survives a
  Re-translate-all. POST /api/posts/<id>/translation-override applies it
  immediately (translate now when the service is up, else queue for the sweep).
  UI: PostTranslationControl on the posts-feed card.

Migration 0084 (both columns + a CHECK on the override). The feed + provenance
serializers expose translation_override.

With a stricter floor the rollback finally works: raise it -> Re-translate all ->
the 0.86 mis-flags are rejected and restored to the original; force /
keep-original handle the residual either way.

Tests: gate thresholds against the param (0.86 rejected at 0.90, explicit-floor
cases); sweep force/original + re-translate-skips-original; override endpoint
(validation, original clears, force queues when disabled, feed exposes it);
settings min_confidence default/save/validate.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01CgZP9v2otxVJymiYsnVuMy

alembic/versions/0084_translation_strictness_override.py

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

backend/app/api/gallery.py

@@ -145,6 +145,9 @@ async def similar():
         filters, _sort = _parse_filters()
     except (KeyError, ValueError):
         return jsonify({"error": "similar_to query param required"}), 400
+    # Explore passes exclude_wip=1 to also drop work-in-progress from the
+    # rabbit-hole; the gallery's own "similar" button omits it (keeps wip, #1274).
+    exclude_wip = request.args.get("exclude_wip") in ("1", "true", "True")
     # post_id is the exclusive post-detail view — not a similarity scope.
     # include_hidden is a gallery-browse flag; similar() has its OWN presentation
     # exclusion (a similarity-quality concern, #1274), so drop it here (#141).
@@ -154,7 +157,8 @@ async def similar():
     async with get_session() as session:
         svc = GalleryService(session)
         try:
-            images = await svc.similar(image_id=similar_to, limit=limit, **scope)
+            images = await svc.similar(
+                image_id=similar_to, limit=limit, exclude_wip=exclude_wip, **scope)
         except ValueError as exc:
             return jsonify({"error": str(exc)}), 400
     if images is None:

backend/app/api/posts.py

@@ -3,12 +3,28 @@
 from quart import Blueprint, jsonify, request
 
 from ..extensions import get_session
+from ..models import ImportSettings, Post
+from ..services import interpreter_client as ic
 from ..services.post_feed_service import PostFeedService
 from ..services.source_service import KNOWN_PLATFORMS
+from ..utils.text import html_to_plain
 from ._responses import error_response as _bad
 
 posts_bp = Blueprint("posts", __name__, url_prefix="/api/posts")
 
+_TRANSLATION_OVERRIDES = ("auto", "force", "original")
+
+
+def _queue_for_sweep(post: Post) -> None:
+    """Mark a post untranslated (all translation columns NULL) so the periodic
+    sweep re-runs it under its new override — used when Interpreter is down and we
+    can't translate inline."""
+    post.post_title_translated = None
+    post.description_translated = None
+    post.translated_source_lang = None
+    post.translation_engine_version = None
+    post.translated_at = None
+
 
 @posts_bp.route("", methods=["GET"])
 async def list_posts():
@@ -82,3 +98,70 @@ async def get_post(post_id: int):
     if item is None:
         return _bad("not_found", status=404, detail=f"post id={post_id}")
     return jsonify(item)
+
+
+@posts_bp.route("/<int:post_id>/translation-override", methods=["POST"])
+async def set_translation_override(post_id: int):
+    """Sticky per-post translation override (milestone 155). Body:
+    ``{"override": "auto" | "force" | "original"}``.
+
+    'original' keeps the original (clears any stored translation now — no
+    Interpreter needed). 'force'/'auto' translate the post immediately if the
+    service is up (force bypasses the acceptance floor; auto re-runs the gate);
+    if it's down we save the flag and mark the post untranslated so the next sweep
+    applies it. The override persists, so the sweep + Re-translate-all keep
+    honoring it. Returns the updated translation fields + an ``applied`` status."""
+    body = await request.get_json(silent=True) or {}
+    override = body.get("override")
+    if override not in _TRANSLATION_OVERRIDES:
+        return _bad(
+            "invalid_override",
+            detail=f"override must be one of {list(_TRANSLATION_OVERRIDES)}",
+        )
+
+    # Lazy import (mirrors settings.py) so the API module doesn't pull the celery
+    # task graph at import time.
+    from ..tasks.translation import _store_translation, _translate_field
+
+    async with get_session() as session:
+        post = await session.get(Post, post_id)
+        if post is None:
+            return _bad("not_found", status=404, detail=f"post id={post_id}")
+        post.translation_override = override
+        cfg = await ImportSettings.load(session)
+        target = (cfg.translation_target_lang or "en").strip() or "en"
+
+        if override == "original":
+            _store_translation(post, (None, None, None), (None, None, None), target)
+            applied = "cleared"
+        else:
+            base_url = (cfg.interpreter_base_url or "").strip()
+            if cfg.translation_enabled and base_url and ic.health(base_url):
+                force = override == "force"
+                title = (post.post_title or "").strip()
+                desc = (html_to_plain(post.description) if post.description else "") or ""
+                desc = desc.strip()
+                mc = cfg.translation_min_confidence
+                try:
+                    title_res = _translate_field(title, base_url, target, mc, force=force)
+                    desc_res = _translate_field(desc, base_url, target, mc, force=force)
+                except ic.InterpreterUnavailable:
+                    _queue_for_sweep(post)
+                    applied = "queued"
+                else:
+                    _store_translation(post, title_res, desc_res, target)
+                    applied = "translated"
+            else:
+                # Disabled / no URL / unhealthy → let the sweep apply it later.
+                _queue_for_sweep(post)
+                applied = "queued"
+
+        await session.commit()
+        return jsonify({
+            "id": post.id,
+            "translation_override": post.translation_override,
+            "post_title_translated": post.post_title_translated,
+            "description_translated": post.description_translated,
+            "translated_source_lang": post.translated_source_lang,
+            "applied": applied,
+        })

backend/app/api/settings.py

@@ -16,6 +16,7 @@ from ..models import (
     ImportTask,
     Post,
     Tag,
+    TaskRun,
 )
 from ..services import interpreter_client as ic
 
@@ -46,6 +47,7 @@ _EDITABLE_FIELDS = (
     "translation_enabled",
     "interpreter_base_url",
     "translation_target_lang",
+    "translation_min_confidence",
 )
 
 # Per-host external-download toggles — all plain booleans, validated uniformly.
@@ -86,6 +88,7 @@ async def get_import_settings():
         "translation_enabled": row.translation_enabled,
         "interpreter_base_url": row.interpreter_base_url,
         "translation_target_lang": row.translation_target_lang,
+        "translation_min_confidence": row.translation_min_confidence,
     })
 
 
@@ -154,6 +157,14 @@ async def update_import_settings():
     for key in ("interpreter_base_url", "translation_target_lang"):
         if key in body and not isinstance(body[key], str):
             return jsonify({"error": f"{key} must be a string"}), 400
+    # Acceptance floor (milestone 155): latin-script translations below this
+    # Interpreter confidence are kept as the original.
+    if "translation_min_confidence" in body:
+        v = body["translation_min_confidence"]
+        if not isinstance(v, (int, float)) or isinstance(v, bool) or v < 0 or v > 1:
+            return jsonify(
+                {"error": "translation_min_confidence must be a number in [0, 1]"}
+            ), 400
     if "series_suggest_threshold" in body:
         v = body["series_suggest_threshold"]
         if not isinstance(v, (int, float)) or isinstance(v, bool) or v < 0 or v > 1:
@@ -306,6 +317,10 @@ async def translation_status():
     """For the Settings card: is it on, is a URL set, is the service reachable,
     and how many posts still await translation. Health runs the sync client in a
     thread so the event loop isn't blocked."""
+    translation_tasks = (
+        "backend.app.tasks.translation.translate_posts",
+        "backend.app.tasks.translation.retranslate_posts",
+    )
     async with get_session() as session:
         cfg = await ImportSettings.load(session)
         untranslated = (await session.execute(
@@ -315,6 +330,21 @@ async def translation_status():
                 Post.post_title.is_not(None), Post.description.is_not(None),
             ))
         )).scalar_one()
+        # Live progress: is a sweep running now, and what did the last one do?
+        # (run-until-done re-enqueues itself, so `active` stays true across a
+        # bulk re-translate; `last_run` surfaces a completed run's outcome.)
+        active = (await session.execute(
+            select(func.count(TaskRun.id))
+            .where(TaskRun.task_name.in_(translation_tasks))
+            .where(TaskRun.status == "running")
+        )).scalar_one()
+        last = (await session.execute(
+            select(TaskRun.task_name, TaskRun.status, TaskRun.finished_at)
+            .where(TaskRun.task_name.in_(translation_tasks))
+            .where(TaskRun.finished_at.is_not(None))
+            .order_by(TaskRun.finished_at.desc())
+            .limit(1)
+        )).first()
     base_url = (cfg.interpreter_base_url or "").strip()
     healthy = await asyncio.to_thread(ic.health, base_url) if base_url else False
     return jsonify({
@@ -322,6 +352,12 @@ async def translation_status():
         "base_url_set": bool(base_url),
         "healthy": healthy,
         "untranslated_count": int(untranslated),
+        "active": int(active) > 0,
+        "last_run": {
+            "task": last[0].rsplit(".", 1)[-1],
+            "status": last[1],
+            "finished_at": last[2].isoformat() if last[2] else None,
+        } if last else None,
     })
 
 
@@ -338,9 +374,49 @@ async def translation_test():
     return jsonify({"healthy": healthy})
 
 
+@settings_bp.route("/settings/translation/probe", methods=["POST"])
+async def translation_probe():
+    """Diagnostic for the Settings 'Test translation' box: translate a pasted
+    snippet WITHOUT saving anything, returning what Interpreter *detected*
+    (language + confidence) alongside the result. Lets the operator see why a
+    given string was (mis-)detected — e.g. a short English title flagged as
+    another language — so a detection guard can be tuned from real numbers.
+    Read-only: no post is touched. Uses the currently-saved base URL + target."""
+    body = await request.get_json(silent=True)
+    body = body if isinstance(body, dict) else {}
+    text = (body.get("text") or "").strip()
+    if not text:
+        return jsonify({"error": "provide text to translate"}), 400
+    async with get_session() as session:
+        cfg = await ImportSettings.load(session)
+    base_url = (cfg.interpreter_base_url or "").strip()
+    if not base_url:
+        return jsonify({"error": "no Interpreter base URL is set"}), 400
+    target = (cfg.translation_target_lang or "en").strip() or "en"
+    try:
+        res = await asyncio.to_thread(
+            ic.translate, [text], base_url=base_url, target=target,
+        )
+    except ic.InterpreterUnavailable as e:
+        return jsonify({"error": f"Interpreter unavailable: {e}"}), 503
+    except ic.InterpreterBadRequest as e:
+        return jsonify({"error": f"Interpreter rejected the request: {e}"}), 400
+    translations = res.get("translations") or []
+    return jsonify({
+        "target": target,
+        "detected_lang": res.get("detected_lang"),
+        "detected_confidence": res.get("detected_confidence"),
+        "engine": res.get("engine"),
+        "engine_version": res.get("engine_version"),
+        "translated": translations[0] if translations else None,
+    })
+
+
 @settings_bp.route("/settings/translation/run", methods=["POST"])
 async def translation_run():
-    """Enqueue the translate sweep now (the Settings 'Translate now' button)."""
+    """Enqueue the translate sweep now (the Settings 'Translate now' button).
+    Runs in drain mode — run-until-done — so one press chases the whole
+    untranslated backlog to zero rather than a single 300-post chunk."""
     async with get_session() as session:
         cfg = await ImportSettings.load(session)
     if not cfg.translation_enabled or not (cfg.interpreter_base_url or "").strip():
@@ -349,5 +425,41 @@ async def translation_run():
         ), 400
     from ..tasks.translation import translate_posts
 
-    r = translate_posts.delay()
+    r = translate_posts.delay(drain=True)
+    return jsonify({"celery_task_id": r.id}), 202
+
+
+@settings_bp.route("/settings/translation/retranslate", methods=["POST"])
+async def translation_retranslate():
+    """Re-translate stored translations after a model change (m146). Body:
+    ``{"artist_id": <int>}`` aims at one artist; ``{"all": true}`` re-runs every
+    artist. ``all`` must be explicit so an empty/typo body can't wipe everything.
+    Clears the scoped translations and enqueues the run-until-done retranslate
+    sweep (the Interpreter cache re-translates on a changed model, is cache-fast
+    otherwise). Same enabled + base-URL guard as 'Translate now'."""
+    body = await request.get_json(silent=True)
+    body = body if isinstance(body, dict) else {}
+    artist_id = body.get("artist_id")
+    do_all = bool(body.get("all"))
+    if artist_id is None and not do_all:
+        return jsonify(
+            {"error": "provide artist_id, or all=true to re-translate everything"}
+        ), 400
+    if artist_id is not None:
+        try:
+            artist_id = int(artist_id)
+        except (TypeError, ValueError):
+            return jsonify({"error": "artist_id must be an integer"}), 400
+
+    async with get_session() as session:
+        cfg = await ImportSettings.load(session)
+    if not cfg.translation_enabled or not (cfg.interpreter_base_url or "").strip():
+        return jsonify(
+            {"error": "translation is disabled or no base URL is set"}
+        ), 400
+    from ..tasks.translation import retranslate_posts
+
+    # artist_id wins when both are sent; otherwise all=true → None (every artist).
+    artist_ids = [artist_id] if artist_id is not None else None
+    r = retranslate_posts.delay(artist_ids=artist_ids)
     return jsonify({"celery_task_id": r.id}), 202

backend/app/api/suggestions.py

@@ -11,10 +11,11 @@ suggestions_bp = Blueprint("suggestions", __name__, url_prefix="/api")
 
 @suggestions_bp.route("/images/<int:image_id>/suggestions", methods=["GET"])
 async def get_suggestions(image_id: int):
-    # ?min=<float> overrides the configured per-category thresholds so the typed
+    # ?min=<float> overrides the per-head suggest thresholds for INCLUSION. The
-    # tag-input dropdown can surface EVERY stored prediction (min=0), including
+    # rail sends min=0 in its single per-image fetch to get EVERY head (each row
-    # low-confidence actions/features, in canonical formatting. Omitted → the
+    # still carries above_threshold vs its natural cut), then derives the panel
-    # curated above-threshold list the Suggestions panel uses.
+    # (above_threshold) and the typed dropdown (all, filtered by text) client-side
+    # — no second request. Omitted → only above-threshold rows.
     override = None
     raw_min = request.args.get("min")
     if raw_min is not None:
@@ -36,12 +37,11 @@ async def get_suggestions(image_id: int):
                         "category": s.category,
                         "score": round(s.score, 4),
                         "source": s.source,
-                        "creates_new_tag": s.creates_new_tag,
+                        # whether the score cleared the head's own suggest cut.
-                        # raw model key (alias is stored under this) + whether an
+                        # The single min=0 fetch returns every head; the panel
-                        # operator alias produced this suggestion — drive the
+                        # shows above_threshold, the typed dropdown shows all and
-                        # modal's "Treat as alias"/"Remove alias" affordances.
+                        # annotates each match with its score.
-                        "raw_name": s.raw_name,
+                        "above_threshold": s.above_threshold,
-                        "via_alias": s.via_alias,
                         # operator dismissed this tag for this image — surfaced
                         # (not dropped) so the rail can show it rejected + offer
                         # one-click un-reject.
@@ -73,26 +73,6 @@ async def accept_suggestion(image_id: int):
     return jsonify({"accepted": True, "tag_id": tag_id})
 
 
-@suggestions_bp.route(
-    "/images/<int:image_id>/suggestions/alias", methods=["POST"]
-)
-async def alias_suggestion(image_id: int):
-    body = await request.get_json()
-    required = {"alias_string", "alias_category", "canonical_tag_id"}
-    if not body or not required.issubset(body):
-        return jsonify({"error": f"required: {sorted(required)}"}), 400
-    canonical_tag_id = body["canonical_tag_id"]
-    async with get_session() as session:
-        await AllowlistService(session).add_alias_and_accept(
-            image_id,
-            body["alias_string"],
-            body["alias_category"],
-            canonical_tag_id,
-        )
-        await session.commit()
-    return jsonify({"accepted": True, "tag_id": canonical_tag_id})
-
-
 @suggestions_bp.route(
     "/images/<int:image_id>/suggestions/dismiss", methods=["POST"]
 )

backend/app/celery_app.py

@@ -70,6 +70,14 @@ def make_celery() -> Celery:
         },
         # Heavy ML tasks need fair dispatch — see ImageRepo's precedent.
         task_acks_late=True,
+        # Deploy graceful-shutdown safety: with acks_late, a task killed because
+        # it outran the container's stop-grace window (SIGKILL) is re-queued
+        # rather than silently lost. Safe because our long tasks are idempotent +
+        # chunked (translation per-post commit, downloads terminal-status, audits
+        # chunk) and the 5-min recovery sweeps re-drive anything left non-terminal
+        # — a re-run resumes cleanly and never corrupts. No redeliver-loop risk:
+        # heavy GPU work is tombstoned via gpu_queue, not run inline in a worker.
+        task_reject_on_worker_lost=True,
         worker_prefetch_multiplier=1,
         # Broker resilience (2026-06-24): a swarm overlay-network blip after a
         # redeploy left Redis healthy but transiently unreachable, and a worker
@@ -107,6 +115,11 @@ def make_celery() -> Celery:
                 "task": "backend.app.tasks.maintenance.cleanup_old_tasks",
                 "schedule": 86400.0,  # daily
             },
+            "cleanup-orphaned-temp-files": {
+                "task": "backend.app.tasks.maintenance.cleanup_orphaned_temp_files",
+                "schedule": 86400.0,  # daily — sweep .part/.partial left by a
+                # download/import killed mid-write (graceful-shutdown fallout)
+            },
             "train-heads-nightly": {
                 "task": "backend.app.tasks.ml.scheduled_train_heads",
                 "schedule": 86400.0,  # passive cadence; manual retrain stays available
@@ -165,9 +178,13 @@ def make_celery() -> Celery:
                 "task": "backend.app.tasks.ml.prune_presentation_reviews",
                 "schedule": 86400.0,  # retention: drop resolved review flags >30d
             },
-            "translate-posts-daily": {
+            "translate-posts-8h": {
                 "task": "backend.app.tasks.translation.translate_posts",
-                "schedule": 86400.0,  # no-op unless translation configured + healthy
+                "schedule": 28800.0,  # every 8h: steady-state cadence for the
+                # trickle of newly-imported posts (no-op unless translation
+                # configured + healthy). One bounded 300-chunk per fire — the
+                # one-time backlog drains via the "Translate now" button
+                # (drain=True, run-until-done), not this sweep.
             },
             "snapshot-head-metrics-daily": {
                 "task": "backend.app.tasks.maintenance.snapshot_head_metrics",

backend/app/models/import_settings.py

@@ -106,6 +106,15 @@ class ImportSettings(Base):
     translation_target_lang: Mapped[str] = mapped_column(
         Text, nullable=False, default="en", server_default="en",
     )
+    # The latin-script acceptance floor for the translation gate: a translation
+    # whose Interpreter-reported confidence is below this is kept as the original
+    # (operator-tunable, milestone 155). Default 0.9 — stricter than the old
+    # hardcoded 0.8, because Interpreter confidently mis-detects short ASCII
+    # English (e.g. "… WIP Part 1") as a European language at ~0.86. CJK stays
+    # trusted regardless (script-detected). Per-post overrides handle the misses.
+    translation_min_confidence: Mapped[float] = mapped_column(
+        Float, nullable=False, default=0.9, server_default="0.9",
+    )
 
     @classmethod
     async def load(cls, session) -> ImportSettings:

backend/app/models/post.py

@@ -8,7 +8,17 @@ artist-filter queries don't depend on the Source detour).
 
 from datetime import datetime
 
-from sqlalchemy import JSON, DateTime, ForeignKey, Integer, String, Text, UniqueConstraint, func
+from sqlalchemy import (
+    JSON,
+    CheckConstraint,
+    DateTime,
+    ForeignKey,
+    Integer,
+    String,
+    Text,
+    UniqueConstraint,
+    func,
+)
 from sqlalchemy.orm import Mapped, mapped_column
 
 from .base import Base
@@ -23,6 +33,10 @@ class Post(Base):
         # (created in alembic 0030) covers that case via
         # (artist_id, external_post_id).
         UniqueConstraint("source_id", "external_post_id", name="uq_post_source_external_id"),
+        CheckConstraint(
+            "translation_override IN ('auto', 'force', 'original')",
+            name="ck_post_translation_override",
+        ),
     )
 
     id: Mapped[int] = mapped_column(Integer, primary_key=True)
@@ -64,6 +78,16 @@ class Post(Base):
     translated_at: Mapped[datetime | None] = mapped_column(
         DateTime(timezone=True), nullable=True
     )
+    # Sticky per-post override of the translation decision (milestone 155):
+    # 'auto' = the acceptance gate decides; 'force' = always store Interpreter's
+    # translation even below the confidence floor (rescue a skipped legit-foreign
+    # title); 'original' = never translate, keep the original (kill a confidently
+    # mis-flagged one the floor can't catch). The sweep reads this on every run,
+    # and re-translate leaves 'original' posts alone, so the choice survives a
+    # Re-translate-all.
+    translation_override: Mapped[str] = mapped_column(
+        String(16), nullable=False, default="auto", server_default="auto",
+    )
 
     downloaded_at: Mapped[datetime] = mapped_column(
         DateTime(timezone=True), nullable=False, server_default=func.now()

backend/app/models/tag.py

@@ -48,6 +48,10 @@ class TagKind(StrEnum):
 # content. `wip` is real art: only the training pipelines exclude it.
 SYSTEM_TAG_NAMES = ("wip", "banner", "editor screenshot")
 PRESENTATION_SYSTEM_TAGS = ("banner", "editor screenshot")
+# `wip` marks real-but-unfinished art. It's kept in the gallery's own "similar"
+# results (#1274), but the Explore rabbit-hole opts to hide it (exclude_wip) so a
+# browse doesn't keep surfacing work-in-progress (operator, 2026-07-08).
+WIP_SYSTEM_TAG = "wip"
 
 image_tag = Table(
     "image_tag",

backend/app/services/gallery_service.py

@@ -31,7 +31,7 @@ from ..models import (
     Tag,
     TagPositiveConfirmation,
 )
-from ..models.tag import PRESENTATION_SYSTEM_TAGS, image_tag
+from ..models.tag import PRESENTATION_SYSTEM_TAGS, WIP_SYSTEM_TAG, image_tag
 from .pagination import decode_cursor, encode_cursor
 from .tag_query import (
     fandom_join_alias,
@@ -715,6 +715,7 @@ class GalleryService:
         platform: str | None = None,
         untagged: bool = False, no_artist: bool = False,
         date_from: datetime | None = None, date_to: datetime | None = None,
+        exclude_wip: bool = False,
     ) -> list[GalleryImage] | None:
         """Visual "more like this": images near `image_id`'s SigLIP embedding
         (pgvector, HNSW-indexed — alembic 0036), then DIVERSIFIED so the result
@@ -751,14 +752,18 @@ class GalleryService:
         # Presentation images (banner / editor-screenshot system tags, #128)
         # cluster on UI chrome rather than content, so near any one of them
         # they'd fill the grid. Excluded from CANDIDATES only — the anchor
-        # itself may be a banner, and `wip` stays surfaced (real art; only
+        # itself may be a banner. `wip` stays surfaced here by default (real art;
-        # the training pipelines exclude it).
+        # only the training pipelines exclude it), but the Explore rabbit-hole
+        # passes exclude_wip to also drop work-in-progress (operator, 2026-07-08).
+        excluded_system_tags = PRESENTATION_SYSTEM_TAGS
+        if exclude_wip:
+            excluded_system_tags = (*PRESENTATION_SYSTEM_TAGS, WIP_SYSTEM_TAG)
         presentation = (
             select(image_tag.c.image_record_id)
             .join(Tag, Tag.id == image_tag.c.tag_id)
             .where(
                 Tag.is_system.is_(True),
-                Tag.name.in_(PRESENTATION_SYSTEM_TAGS),
+                Tag.name.in_(excluded_system_tags),
             )
         )
         stmt = stmt.where(

backend/app/services/interpreter_client.py

@@ -8,12 +8,24 @@ behind a reverse proxy). Full API contract: Scribe note #1347.
 """
 from __future__ import annotations
 
+from datetime import UTC, datetime
+from email.utils import parsedate_to_datetime
+
 import requests
+from requests.adapters import HTTPAdapter
+from urllib3.util.retry import Retry
 
 
 class InterpreterUnavailable(Exception):
-    """The translation engine is down / unreachable (HTTP 503 or a connection
+    """The translation engine is down / unreachable / draining — a connection
-    error) — retry later, don't drop the item."""
+    error, HTTP 429, or a 5xx (commonly 502/503/504 through a reverse proxy while
+    the service restarts). Retry later, don't drop the item. ``retry_after`` holds
+    the server's Retry-After hint in seconds when it sent one, so the caller can
+    back off exactly as long as it's asked to."""
+
+    def __init__(self, message: str, *, retry_after: float | None = None):
+        super().__init__(message)
+        self.retry_after = retry_after
 
 
 class InterpreterBadRequest(Exception):
@@ -24,13 +36,52 @@ def _url(base_url: str, path: str) -> str:
     return f"{base_url.rstrip('/')}{path}"
 
 
+def _parse_retry_after(resp) -> float | None:
+    """Parse a Retry-After header (RFC 7231: delta-seconds or an HTTP-date) into
+    non-negative seconds, or None if absent/unparseable — so a gracefully-
+    draining Interpreter can tell Curator exactly how long to wait before it
+    tries again."""
+    raw = (resp.headers.get("Retry-After") or "").strip()
+    if not raw:
+        return None
+    try:
+        return max(0.0, float(int(raw)))       # delta-seconds form
+    except ValueError:
+        pass
+    try:                                        # HTTP-date form
+        when = parsedate_to_datetime(raw)
+    except (TypeError, ValueError):
+        return None
+    if when is None:
+        return None
+    if when.tzinfo is None:
+        when = when.replace(tzinfo=UTC)
+    return max(0.0, (when - datetime.now(UTC)).total_seconds())
+
+
+# A shared session pools the keep-alive connection across the per-post sweep
+# calls, and retries CONNECT failures only (connect=2, short backoff) — smoothing
+# the instant a reverse proxy reloads. Status codes are deliberately NOT retried
+# (status=0, raise_on_status=False): translate() maps 429/5xx → InterpreterUnavailable
+# itself, and letting urllib3 retry a draining 503 would defeat the Retry-After
+# backoff we honour upstream.
+_retry = Retry(
+    total=None, connect=2, read=0, redirect=0, status=0,
+    backoff_factor=0.3, raise_on_status=False,
+)
+session = requests.Session()
+_adapter = HTTPAdapter(max_retries=_retry)
+session.mount("http://", _adapter)
+session.mount("https://", _adapter)
+
+
 def health(base_url: str, *, timeout: float = 5.0) -> bool:
     """True iff the Interpreter LLM engine is up. Any error (unset URL, network,
     non-200, engine down) → False, so the sweep just no-ops rather than raising."""
     if not base_url:
         return False
     try:
-        r = requests.get(_url(base_url, "/v1/health"), timeout=timeout)
+        r = session.get(_url(base_url, "/v1/health"), timeout=timeout)
     except requests.RequestException:
         return False
     if r.status_code != 200:
@@ -45,22 +96,25 @@ def translate(
 ) -> dict:
     """Translate a batch. Returns::
 
-        {"translations": [str, ...],   # SAME order & length as `texts`
+        {"translations": [str, ...],        # SAME order & length as `texts`
-         "detected_lang": str | None,  # aggregate: describes the FIRST item
+         "detected_lang": str | None,       # aggregate: describes the FIRST item
+         "detected_confidence": float | None,  # detector's confidence, if given
          "engine": str | None,
          "engine_version": str | None}
 
     Interpreter batch metadata is aggregate (first item only) — fine for one
     post's ``[title, description]`` batch since they share a language. Passthrough
     items (already target-language / emoji-only) come back UNCHANGED in their
-    slot. Raises InterpreterUnavailable on 503 / connection error (retry later),
+    slot. Raises InterpreterUnavailable on a connection error / 429 / 5xx (retry
-    InterpreterBadRequest on 400. (Scribe note #1347.)
+    later, honouring Retry-After), InterpreterBadRequest on 400. (Scribe note
+    #1347.)
     """
     if not texts:
         return {"translations": [], "detected_lang": None,
+                "detected_confidence": None,
                 "engine": None, "engine_version": None}
     try:
-        r = requests.post(
+        r = session.post(
             _url(base_url, "/v1/translate"),
             json={"q": list(texts), "source": source,
                   "target": target, "engine": "auto"},
@@ -68,10 +122,18 @@ def translate(
         )
     except requests.RequestException as e:
         raise InterpreterUnavailable(str(e)) from e
-    if r.status_code == 503:
-        raise InterpreterUnavailable("interpreter engine unavailable")
     if r.status_code == 400:
         raise InterpreterBadRequest((r.json() or {}).get("error", "bad request"))
+    # A gracefully-draining service — often behind a reverse proxy — returns 429
+    # or a 5xx gateway error (502/503/504), not always a clean 503. Treat every
+    # one as "unavailable, retry later" and honour any Retry-After it sends, so a
+    # rolling Interpreter restart interrupts the sweep cleanly (instead of raising
+    # an opaque HTTPError) and resumes exactly when the service says it's ready.
+    if r.status_code == 429 or r.status_code >= 500:
+        raise InterpreterUnavailable(
+            f"interpreter unavailable (HTTP {r.status_code})",
+            retry_after=_parse_retry_after(r),
+        )
     r.raise_for_status()
     body = r.json() or {}
     out = body.get("translatedText")
@@ -80,9 +142,11 @@ def translate(
     if not isinstance(out, list):
         out = [out]
     interp = body.get("interpreter") or {}
+    detected = body.get("detectedLanguage") or {}
     return {
         "translations": out,
-        "detected_lang": (body.get("detectedLanguage") or {}).get("language"),
+        "detected_lang": detected.get("language"),
+        "detected_confidence": detected.get("confidence"),
         "engine": interp.get("engine"),
         "engine_version": interp.get("engine_version"),
     }

backend/app/services/ml/allowlist.py

@@ -12,13 +12,11 @@ from sqlalchemy.ext.asyncio import AsyncSession
 
 from ...models import TagSuggestionRejection
 from ...models.tag import image_tag
-from .aliases import AliasService
 
 
 class AllowlistService:
     def __init__(self, session: AsyncSession):
         self.session = session
-        self.aliases = AliasService(session)
 
     async def _apply_image_tag(self, image_id: int, tag_id: int, source: str):
         stmt = insert(image_tag).values(
@@ -41,18 +39,6 @@ class AllowlistService:
         await self._apply_image_tag(image_id, tag_id, source="ml_accepted")
         await self._clear_rejection(image_id, tag_id)
 
-    async def add_alias_and_accept(
-        self,
-        image_id: int,
-        alias_string: str,
-        alias_category: str,
-        canonical_tag_id: int,
-    ) -> None:
-        await self.aliases.create(
-            alias_string, alias_category, canonical_tag_id
-        )
-        await self.accept(image_id, canonical_tag_id)
-
     async def dismiss(self, image_id: int, tag_id: int) -> None:
         stmt = insert(TagSuggestionRejection).values(
             image_record_id=image_id, tag_id=tag_id

backend/app/services/ml/heads.py

@@ -500,13 +500,19 @@ async def score_image(
     session: AsyncSession, image_id: int, threshold_override: float | None = None,
 ) -> list[dict]:
     """Suggestions for one image from the trained heads: [{tag_id, name,
-    category, score}], ranked. A concept surfaces when its score clears the
+    category, score, above_threshold, grounding}], ranked. A concept is INCLUDED
-    head's own suggest_threshold — or, when threshold_override is given (the
+    when its score clears the head's own suggest_threshold — or, when
-    typed-dropdown "show everything" mode), that flat floor instead (0 → every
+    threshold_override is given (the typed-dropdown "show everything" mode), that
-    head). System-tag heads (wip/banner/editor) instead use a flat
+    flat floor instead (0 → every head). System-tag heads (wip/banner/editor)
-    _SYSTEM_TAG_SUGGEST_FLOOR so their false positives surface for rejection
+    instead use a flat _SYSTEM_TAG_SUGGEST_FLOOR so their false positives surface
-    (still overridden by threshold_override). Empty if the image has no
+    for rejection (still overridden by threshold_override). Empty if the image has
-    embedding or no heads exist yet.
+    no embedding or no heads exist yet.
+
+    ``above_threshold`` is reported SEPARATELY from inclusion: it's always whether
+    the score cleared the head's NATURAL cut (suggest_threshold, or the system
+    floor), regardless of any override. So the single min=0 fetch returns every
+    head, and the caller can split panel (above_threshold) from dropdown (all)
+    without a second request.
 
     MAX-OVER-BAG: the image is scored as a BAG of embeddings — the whole-image
     vector PLUS every concept-region crop the agent embedded (same model
@@ -537,21 +543,25 @@ async def score_image(
     winners = probs_bag.argmax(axis=0)                  # (H,)
     out = []
     for i, p in enumerate(probs):
-        if threshold_override is not None:
+        m = heads["meta"][i]
-            cut = threshold_override
+        # The head's NATURAL suggest cut — system tags use the flat floor (see
-        elif heads["meta"][i]["is_system"]:
+        # _SYSTEM_TAG_SUGGEST_FLOOR) so their false positives show up for the
-            # System tags surface at the flat floor (see _SYSTEM_TAG_SUGGEST_FLOOR)
+        # operator to reject; content heads use their own precision-tuned
-            # so their false positives show up for the operator to reject.
+        # threshold. This is what "above threshold" means (drives the panel).
-            cut = _SYSTEM_TAG_SUGGEST_FLOOR
+        natural = (
-        else:
+            _SYSTEM_TAG_SUGGEST_FLOOR if m["is_system"] else float(heads["thr"][i])
-            cut = heads["thr"][i]
+        )
+        # INCLUSION is looser under threshold_override (dropdown show-all,
+        # override=0): every head comes back so a low-confidence concept can still
+        # be typed + picked, each carrying its own above_threshold flag.
+        cut = threshold_override if threshold_override is not None else natural
         if p >= cut:
-            m = heads["meta"][i]
             out.append({
                 "tag_id": m["tag_id"],
                 "name": m["name"],
                 "category": m["category"],
                 "score": float(p),
+                "above_threshold": bool(p >= natural),
                 "grounding": bag_meta[int(winners[i])],
             })
     out.sort(key=lambda d: d["score"], reverse=True)

backend/app/services/ml/suggestions.py

@@ -22,22 +22,20 @@ from .heads import score_image
 
 @dataclass(frozen=True)
 class Suggestion:
-    # canonical_tag_id is None when this is a raw Camie tag with no alias and
+    # Every suggestion is a canonical Tag: heads/CCIP only score EXISTING concept
-    # no existing Tag row — accepting it will create the tag.
+    # tags (tagging-v2, #114). The old raw-model-key / creates-new / alias-remap
-    canonical_tag_id: int | None
+    # cases are gone — a suggestion always maps to a real tag id.
+    canonical_tag_id: int
     display_name: str
     category: str
     score: float
     source: str  # 'head' | 'ccip' | 'both' (Camie tagger/centroid removed in v2)
-    creates_new_tag: bool
+    # above_threshold = the score cleared the head's own suggest cut (or the
-    # raw_name = the booru model vocab key behind this suggestion. It's the key
+    # system floor). The Suggestions PANEL shows only these; the typed-tag
-    # an alias MUST be stored under (resolution looks up the raw key), so the
+    # dropdown fetches ALL suggestions (every head, min=0) and just annotates each
-    # modal needs it to author an alias correctly. None for centroid-only hits
+    # matching row with its score, so a low-confidence concept can still be typed
-    # (no underlying prediction → nothing to alias).
+    # and picked. CCIP character matches are always above their match threshold.
-    raw_name: str | None = None
+    above_threshold: bool
-    # via_alias = this suggestion was surfaced because an operator alias remapped
-    # the raw prediction to this canonical tag. Lets the UI mark it + offer undo.
-    via_alias: bool = False
     # rejected = the operator dismissed this tag for this image (a stored
     # TagSuggestionRejection). It stays in the list — flagged, not dropped — so
     # the rejection is VISIBLE and REVERSIBLE in the rail (misclick recovery,
@@ -108,6 +106,7 @@ class SuggestionService:
         for h in hits:
             merged[(h["category"], h["tag_id"])] = {
                 "name": h["name"], "score": h["score"], "source": "head",
+                "above_threshold": h["above_threshold"],
                 "grounding": h.get("grounding"),
             }
         for c in ccip_hits:
@@ -116,12 +115,16 @@ class SuggestionService:
             if ex is not None:
                 ex["source"] = "both"
                 ex["score"] = max(ex["score"], c["score"])
+                # CCIP only returns matches above its own threshold, so a CCIP
+                # corroboration always makes the merged suggestion above-threshold.
+                ex["above_threshold"] = True
                 # Keep the head's localized crop if it had one; else fall back to
                 # the CCIP figure so a corroborated character still grounds (#1206).
                 ex["grounding"] = ex.get("grounding") or c.get("grounding")
             else:
                 merged[key] = {
                     "name": c["name"], "score": c["score"], "source": "ccip",
+                    "above_threshold": True,
                     "grounding": c.get("grounding"),
                 }
 
@@ -136,7 +139,7 @@ class SuggestionService:
                     category=cat,
                     score=m["score"],
                     source=m["source"],
-                    creates_new_tag=False,
+                    above_threshold=m["above_threshold"],
                     rejected=tag_id in rejected,
                     grounding=m.get("grounding"),
                 )
@@ -157,8 +160,7 @@ class SuggestionService:
         was suggested for (or already applied to) >= threshold fraction of
         the selection AND was acceptable on >= 1 image. Confidence is the
         mean over images where it was suggested. Aggregated by
-        canonical_tag_id; creates-new (no canonical id) suggestions are
+        canonical_tag_id (every suggestion is a canonical tag now)."""
-        skipped (bulk Accept applies by tag id)."""
         if not image_ids:
             return {}
         threshold = min(1.0, max(0.0, threshold))
@@ -169,8 +171,6 @@ class SuggestionService:
             sl = await self.for_image(image_id)
             for category, items in sl.by_category.items():
                 for s in items:
-                    if s.canonical_tag_id is None or s.creates_new_tag:
-                        continue
                     # for_image keeps rejected tags (flagged) for the rail;
                     # bulk consensus must still ignore them — a tag dismissed on
                     # an image isn't a suggestion for that image.

backend/app/services/post_feed_service.py

@@ -397,6 +397,8 @@ class PostFeedService:
             "post_title_translated": post.post_title_translated,
             "description_translated": desc_trans_short,
             "translated_source_lang": post.translated_source_lang,
+            # Sticky per-post translation choice (auto/force/original, #155).
+            "translation_override": post.translation_override,
             "artist": {"id": artist.id, "name": artist.name, "slug": artist.slug},
             "source": (
                 {"id": source.id, "platform": source.platform}

backend/app/services/provenance_service.py

@@ -35,6 +35,7 @@ def _post_dict(p: Post) -> dict:
         "title_translated": p.post_title_translated,
         "description_translated": p.description_translated,
         "translated_source_lang": p.translated_source_lang,
+        "translation_override": p.translation_override,
     }
 
 

backend/app/tasks/maintenance.py

@@ -79,6 +79,14 @@ VERIFY_PAGE = 200
 FFPROBE_TIMEOUT_SECONDS = 10
 TASK_RUN_KEEP_OK_SECONDS = 24 * 3600       # 24 h
 TASK_RUN_KEEP_FAILURE_SECONDS = 7 * 24 * 3600  # 7 days
+# Orphaned staging files: downloads/imports stage into <name>.part / <name>.partial
+# then os.replace() into place (importer / external_fetch / native_ingest_common /
+# attachment_store), so a kill mid-write leaves a discardable temp, never a corrupt
+# final. cleanup_orphaned_temp_files sweeps ones left behind; the min-age guard
+# keeps it from deleting an in-flight download's staging file mid-write.
+IMAGES_ROOT = Path("/images")
+TEMP_STAGING_SUFFIXES = (".part", ".partial")
+ORPHAN_TEMP_MIN_AGE_HOURS = 6
 
 # Audit 2026-06-02: per-entity recovery sweep thresholds. Each must be
 # > the entity's longest legitimate runtime (its task's time_limit + a
@@ -339,6 +347,34 @@ def cleanup_old_tasks() -> int:
         return result.rowcount or 0
 
 
+@celery.task(name="backend.app.tasks.maintenance.cleanup_orphaned_temp_files")
+def cleanup_orphaned_temp_files() -> int:
+    """Delete orphaned .part/.partial staging files under the images root, left by
+    a download/import killed mid-write. Only removes files older than
+    ORPHAN_TEMP_MIN_AGE_HOURS so an in-flight download's staging file is never
+    pulled out from under it. Returns the count removed."""
+    if not IMAGES_ROOT.is_dir():
+        return 0
+    cutoff = datetime.now(UTC).timestamp() - ORPHAN_TEMP_MIN_AGE_HOURS * 3600
+    removed = 0
+    for path in IMAGES_ROOT.rglob("*"):
+        if path.suffix not in TEMP_STAGING_SUFFIXES or not path.is_file():
+            continue
+        try:
+            if path.stat().st_mtime >= cutoff:
+                continue          # too fresh — may be an active download
+            path.unlink()
+            removed += 1
+        except OSError as exc:
+            log.warning("cleanup_orphaned_temp_files: %s: %s", path, exc)
+    if removed:
+        log.info(
+            "cleanup_orphaned_temp_files: removed %d orphaned staging file(s)",
+            removed,
+        )
+    return removed
+
+
 @celery.task(name="backend.app.tasks.maintenance.recover_stalled_task_runs")
 def recover_stalled_task_runs() -> int:
     """Flip task_run rows stuck in 'running' past their queue-specific

backend/app/tasks/translation.py

@@ -1,16 +1,32 @@
-"""Post-text translation Celery task (milestone 143).
+"""Post-text translation Celery tasks (milestone 143 + re-translate m146).
 
 Backfills non-English post title/description to the target language via the
 self-hosted Interpreter LAN service, storing the result + engine_version so
 viewing is instant and re-runs are cache-fast. Sync (Celery workers are sync),
 same pattern as the other backfill sweeps. No-op unless translation is enabled,
 a base URL is set, and the service is healthy.
+
+Curator does NO language detection of its own: each field's translation is
+accepted or rejected purely on Interpreter's reported engine + detected language
++ confidence (see ``_accept``) — a short English title Interpreter mis-labels as
+a European language scores below the latin-script floor and is kept as-is.
+
+Two entry points:
+- ``translate_posts`` — the periodic untranslated sweep (every 8h;
+  translated_source_lang IS NULL only), one bounded chunk per fire. The Settings
+  "Translate now" button calls it with ``drain=True`` to chase the tail
+  run-until-done and clear the whole backlog in a single press.
+- ``retranslate_posts`` — after a model change, resets the stored translation
+  columns for a scoped set of posts (all, or a given set of artists) so the
+  untranslated selection re-runs them, then chases the tail until drained
+  (run-until-done). The Interpreter cache keys on engine_version: a changed
+  model genuinely re-translates, an unchanged one is ~1ms cache-fast.
 """
 import logging
 from datetime import UTC, datetime
 
 from celery.exceptions import SoftTimeLimitExceeded
-from sqlalchemy import or_, select
+from sqlalchemy import func, or_, select, update
 
 from ..celery_app import celery
 from ..models import ImportSettings, Post
@@ -24,78 +40,359 @@ log = logging.getLogger(__name__)
 # limit; the rest resumes next cycle (idempotent — only untranslated posts are
 # picked, so an interrupted run just re-runs = rule-89 recovery).
 _MAX_POSTS_PER_RUN = 300
+# Short gap between run-until-done chunks so a big re-translate finishes on its
+# own without monopolising the maintenance_long worker in one uninterrupted run.
+_RETRANSLATE_COUNTDOWN = 5
+# When Interpreter drains mid-chunk (graceful restart), resume the bulk
+# re-translate after the service's Retry-After hint if it sent one, else this
+# default; capped so a bogus/huge hint can't park the work longer than the daily
+# beat's own safety net would.
+_INTERRUPT_BACKOFF = 60
+_INTERRUPT_BACKOFF_MAX = 900
+
+# --- Translation acceptance gate (Scribe rule 133; contract note #1347) -------
+# Curator does NO language detection of its own — it accepts or rejects a
+# translation purely on Interpreter's reported detection. CJK is script-detected
+# (kana/hangul/kanji) and reliably high-confidence, so ja/ko/zh are trusted
+# outright (pure-kanji Japanese can even come back labelled zh ~0.75, still
+# correctly translated). Latin-script detection is a real statistical
+# probability, so a short English title Interpreter mis-labels as a European
+# language scores low; require it to clear this floor, else keep the original.
+# Calibrated 2026-07-09 against fresh (uncached) probes once Interpreter returned
+# real langdetect confidence: genuine German detected at 1.0, while a correctly-
+# detected but ambiguous latin string dipped to 0.86 — so a single constant can't win.
+# The floor is now operator-tunable (ImportSettings.translation_min_confidence,
+# milestone 155) with a stricter 0.90 default; per-post overrides
+# (Post.translation_override) rescue the false negatives it skips. Genuine German
+# and mis-flagged short English both land ~0.86, and single-word mis-flags sit at
+# a confident 1.0 no floor catches. Real langdetect fixed some cases at the
+# source (some short English titles now detect as English → passthrough), so this
+# floor is a safety net, not the primary fix. Re-tune via the "Test translation"
+# box (send fresh text — cache hits report 1.0).
+_CJK_LANGS = frozenset({"ja", "ko", "zh"})
+_DEFAULT_MIN_LATIN_CONFIDENCE = 0.90
+
+
+def _interrupt_backoff(retry_after) -> int:
+    """Seconds to wait before resuming after an Interpreter interruption: the
+    server's Retry-After hint (capped), else the default."""
+    if retry_after and retry_after > 0:
+        return int(min(retry_after, _INTERRUPT_BACKOFF_MAX))
+    return _INTERRUPT_BACKOFF
 
 
 @celery.task(
     name="backend.app.tasks.translation.translate_posts",
     soft_time_limit=1800, time_limit=2100,
 )
-def translate_posts() -> str:
+def translate_posts(drain: bool = False) -> str:
     """Translate untranslated non-English post title/description (default target
     en) via Interpreter. Per-post [title, description] batch → per-post detected
     language. Passthrough / already-target posts are marked handled (source ==
     target) with no stored translation. 503 or a connection error interrupts the
     run (retry next cycle); 400 stops it (fix config); posts done so far stay
-    committed. No-op unless configured + healthy. Returns a summary string."""
+    committed. No-op unless configured + healthy. Returns a summary string.
+
+    ``drain`` (the Settings "Translate now" button) chases the tail
+    run-until-done: on a clean chunk with work still remaining it re-enqueues
+    itself until the untranslated backlog is zero, like ``retranslate_posts``. The
+    periodic beat leaves it False → one bounded chunk per fire (the 8h cadence
+    drives the rest, enough for the trickle of newly-imported posts)."""
     SessionLocal = _sync_session_factory()
     with SessionLocal() as session:
-        cfg = ImportSettings.load_sync(session)
+        ready = _translation_config(session)
-        if not cfg.translation_enabled or not cfg.interpreter_base_url.strip():
+        if isinstance(ready, str):
-            return "disabled"
+            return ready
-        base_url = cfg.interpreter_base_url.strip()
+        base_url, target, min_confidence = ready
-        target = (cfg.translation_target_lang or "en").strip() or "en"
+        posts = _select_untranslated(session, None, _MAX_POSTS_PER_RUN)
-        if not ic.health(base_url):
+        status, translated, retry_after = _translate_batch(
-            return "interpreter unavailable"
+            session, posts, base_url, target, min_confidence,
+        )
+        # Drain mode (manual "Translate now"): chase the tail until the backlog is
+        # zero, so one press clears the whole pile instead of one 300-chunk.
+        # Termination is guaranteed — every handled post leaves the untranslated
+        # set, so the remaining count strictly decreases each chunk.
+        if status == "ok" and drain:
+            remaining = _count_untranslated(session, None)
+            if remaining:
+                translate_posts.apply_async(
+                    (), {"drain": True}, countdown=_RETRANSLATE_COUNTDOWN,
+                )
+                log.info(
+                    "translate_posts: draining — %d remaining → re-enqueued",
+                    remaining,
+                )
+        # Interpreter drained mid-chunk (graceful restart): don't make a manual
+        # "Translate now" wait a whole beat cycle — re-enqueue after its
+        # Retry-After hint (or the default backoff), preserving `drain` so a bulk
+        # drain resumes cleanly. Self-terminating: once the service is down the
+        # health gate returns "interpreter unavailable" early.
+        elif status == "interrupted" and _count_untranslated(session, None):
+            delay = _interrupt_backoff(retry_after)
+            translate_posts.apply_async((), {"drain": drain}, countdown=delay)
+            log.info(
+                "translate_posts: interrupted (service draining) → retry in %ss",
+                delay,
+            )
+    return _summary(status, translated, len(posts))
 
-        posts = session.execute(
-            select(Post)
-            .where(Post.translated_source_lang.is_(None))
-            .where(or_(
-                Post.post_title.is_not(None), Post.description.is_not(None),
-            ))
-            .limit(_MAX_POSTS_PER_RUN)
-        ).scalars().all()
 
-        translated = 0
+@celery.task(
+    name="backend.app.tasks.translation.retranslate_posts",
+    soft_time_limit=1800, time_limit=2100,
+)
+def retranslate_posts(artist_ids=None, _reset_done=False) -> str:
+    """Re-translate posts after a model change. On the first call resets the
+    stored translation columns to NULL for the scoped posts — all artists when
+    ``artist_ids`` is falsy, else ``WHERE artist_id IN artist_ids`` — so the
+    normal untranslated selection re-runs them through Interpreter. Then handles
+    one bounded chunk and re-enqueues itself until the scoped backlog is drained
+    (run-until-done; ``_reset_done`` guards against wiping fresh work on the
+    follow-up chunks). No reset happens unless the service is configured +
+    healthy, so translations are never cleared when they can't be rebuilt."""
+    SessionLocal = _sync_session_factory()
+    with SessionLocal() as session:
+        ready = _translation_config(session)
+        if isinstance(ready, str):
+            return ready
+        base_url, target, min_confidence = ready
+
+        if not _reset_done:
+            n = _reset_translations(session, artist_ids)
+            log.info(
+                "retranslate_posts: reset %d post(s) (artist_ids=%s)",
+                n, artist_ids,
+            )
+
+        posts = _select_untranslated(session, artist_ids, _MAX_POSTS_PER_RUN)
+        status, translated, retry_after = _translate_batch(
+            session, posts, base_url, target, min_confidence,
+        )
+
+        # run-until-done: chase the tail when the chunk finished cleanly.
+        # Termination is guaranteed: every handled post leaves the NULL set, so
+        # the remaining count strictly decreases each chunk.
+        if status == "ok":
+            remaining = _count_untranslated(session, artist_ids)
+            if remaining:
+                retranslate_posts.apply_async(
+                    (),
+                    {"artist_ids": artist_ids, "_reset_done": True},
+                    countdown=_RETRANSLATE_COUNTDOWN,
+                )
+                log.info(
+                    "retranslate_posts: %d remaining → re-enqueued", remaining,
+                )
+        # Interpreter drained mid-chunk (graceful restart / 429 / 5xx): don't
+        # stall the bulk re-translate until the daily beat — resume it after the
+        # service's Retry-After hint (or the default backoff), with
+        # _reset_done=True so the fresh work is never re-wiped. Self-terminating:
+        # if the service is still down next run, _translation_config's health gate
+        # returns "interpreter unavailable" early and nothing re-enqueues.
+        elif status == "interrupted" and _count_untranslated(session, artist_ids):
+            delay = _interrupt_backoff(retry_after)
+            retranslate_posts.apply_async(
+                (),
+                {"artist_ids": artist_ids, "_reset_done": True},
+                countdown=delay,
+            )
+            log.info(
+                "retranslate_posts: interrupted (service draining) → retry in %ss",
+                delay,
+            )
+    return _summary(status, translated, len(posts))
+
+
+def _translation_config(session):
+    """Resolve (base_url, target, min_confidence) if translation is enabled +
+    healthy, else a short status string ("disabled" / "interpreter unavailable")
+    for the caller to return. Centralises the guard so translate/retranslate agree
+    exactly, including the operator-tunable acceptance floor."""
+    cfg = ImportSettings.load_sync(session)
+    if not cfg.translation_enabled or not cfg.interpreter_base_url.strip():
+        return "disabled"
+    base_url = cfg.interpreter_base_url.strip()
+    target = (cfg.translation_target_lang or "en").strip() or "en"
+    min_confidence = cfg.translation_min_confidence
+    if not ic.health(base_url):
+        return "interpreter unavailable"
+    return base_url, target, min_confidence
+
+
+def _untranslated_filter(stmt, artist_ids):
+    """Add the untranslated-post predicate (+ optional artist scope) to a
+    select/count over Post. Untranslated = translated_source_lang IS NULL with
+    some text to translate."""
+    stmt = stmt.where(
+        Post.translated_source_lang.is_(None)
+    ).where(or_(
+        Post.post_title.is_not(None), Post.description.is_not(None),
+    ))
+    if artist_ids:
+        stmt = stmt.where(Post.artist_id.in_(artist_ids))
+    return stmt
+
+
+def _select_untranslated(session, artist_ids, limit):
+    return session.execute(
+        _untranslated_filter(select(Post), artist_ids).limit(limit)
+    ).scalars().all()
+
+
+def _count_untranslated(session, artist_ids) -> int:
+    return int(session.execute(
+        _untranslated_filter(select(func.count(Post.id)), artist_ids)
+    ).scalar_one())
+
+
+def _reset_translations(session, artist_ids) -> int:
+    """Clear the stored translation columns for scoped, already-handled posts so
+    the untranslated sweep re-runs them. Only touches rows that were translated
+    (translated_source_lang IS NOT NULL) — untranslated rows are already NULL.
+    Skips 'keep original' posts (translation_override = 'original') so that choice
+    survives a Re-translate-all (milestone 155). Returns the row count reset
+    (commits it)."""
+    stmt = (
+        update(Post)
+        .where(Post.translated_source_lang.is_not(None))
+        .where(Post.translation_override != "original")
+        .values(
+            post_title_translated=None,
+            description_translated=None,
+            translated_source_lang=None,
+            translation_engine_version=None,
+            translated_at=None,
+        )
+    )
+    if artist_ids:
+        stmt = stmt.where(Post.artist_id.in_(artist_ids))
+    n = session.execute(stmt).rowcount
+    session.commit()
+    return n
+
+
+def _translate_batch(session, posts, base_url: str, target: str, min_confidence: float):
+    """Translate each post in the chunk with a per-post commit (an interrupted
+    run keeps progress). Returns (status, translated, retry_after) where status is
+    one of "ok" / "interrupted" (unavailable/drain) / "stopped" (400) / "timeout";
+    retry_after is the server's Retry-After hint in seconds on an interrupt, else
+    None."""
+    translated = 0
+    for post in posts:
         try:
-            for post in posts:
+            translated += _translate_one(session, post, base_url, target, min_confidence)
-                translated += _translate_one(session, post, base_url, target)
+            session.commit()
-                session.commit()   # per-post → an interrupted run keeps progress
+        except ic.InterpreterUnavailable as e:
-        except ic.InterpreterUnavailable:
             session.rollback()
-            return f"interrupted (service down) — translated={translated}"
+            return "interrupted", translated, getattr(e, "retry_after", None)
         except ic.InterpreterBadRequest as e:
             session.rollback()
-            log.warning("translate_posts bad request: %s", e)
+            log.warning("translate bad request: %s", e)
-            return f"stopped (bad request) — translated={translated}"
+            return "stopped", translated, None
         except SoftTimeLimitExceeded:
-            return f"time limit — translated={translated}"
+            return "timeout", translated, None
-    return f"translated={translated} scanned={len(posts)}"
+    return "ok", translated, None
 
 
-def _translate_one(session, post, base_url: str, target: str) -> int:
+def _summary(status: str, translated: int, scanned: int) -> str:
-    """Translate one post's title/description in place. Returns 1 if it stored a
+    if status == "interrupted":
-    translation, 0 for passthrough/empty (which still marks the post handled)."""
+        return f"interrupted (service down) — translated={translated}"
+    if status == "stopped":
+        return f"stopped (bad request) — translated={translated}"
+    if status == "timeout":
+        return f"time limit — translated={translated}"
+    return f"translated={translated} scanned={scanned}"
+
+
+def _accept(
+    language: str, confidence, min_confidence: float = _DEFAULT_MIN_LATIN_CONFIDENCE,
+) -> bool:
+    """Should curator store Interpreter's translation, or keep the original?
+    Consumes ONLY Interpreter's own detection (curator does none, Scribe rule
+    133): CJK languages are trusted regardless of the reported number; a
+    latin-script detection must clear ``min_confidence`` (the operator-tunable
+    ImportSettings.translation_min_confidence). A missing confidence fails OPEN
+    (accept), so a service that omits the field never silently drops a
+    translation. Per-post ``force`` overrides bypass this entirely (see
+    ``_translate_one``)."""
+    if (language or "").split("-", 1)[0].lower() in _CJK_LANGS:
+        return True
+    if confidence is None:
+        return True
+    return confidence >= min_confidence
+
+
+def _translate_field(
+    text: str, base_url: str, target: str, min_confidence: float, force: bool = False,
+):
+    """Translate ONE field independently. Returns (translated, source_lang,
+    engine_version), or (None, None, None) when there's nothing to store — empty
+    text, already the target language, a passthrough (engine "none"), or a
+    latin-script detection the acceptance gate rejects as too low-confidence (kept
+    as the original). ``force`` (a per-post 'force' override) bypasses the
+    confidence gate so a legitimately-foreign title Interpreter is only ~0.86 sure
+    about is still stored; a genuine passthrough stores nothing regardless (there
+    is no translation to force). Per-field (not aggregate first-item) detection so
+    a non-English description still translates when the title is already English."""
+    if not text:
+        return None, None, None
+    res = ic.translate([text], base_url=base_url, target=target)
+    detected = res["detected_lang"] or target
+    if detected == target or res["engine"] == "none":
+        return None, None, None
+    # Trust only Interpreter's own detection (Scribe rule 133): keep the original
+    # when a latin-script detection doesn't clear the confidence floor, so a short
+    # English title mis-labelled as e.g. German isn't rewritten into the archive.
+    # A 'force' override skips the gate — the operator is overriding a rejection.
+    if not force and not _accept(
+        detected, res.get("detected_confidence"), min_confidence,
+    ):
+        return None, None, None
+    return res["translations"][0], detected, res["engine_version"]
+
+
+def _store_translation(post, title_res, desc_res, target: str) -> int:
+    """Apply per-field (translated, source_lang, engine_version) results to a post
+    in place. Returns 1 if a translation was stored, 0 when the post is all
+    passthrough/empty — in which case the translated columns are CLEARED and the
+    post is marked handled (translated_source_lang = target). Clearing (not just
+    leaving) matters on re-apply: a 'keep original' override, or a re-translate
+    that now rejects a previously-accepted mis-flag, must remove the stale
+    translation, not keep it."""
+    title_tr, title_lang, title_ev = title_res
+    desc_tr, desc_lang, desc_ev = desc_res
+    if title_tr is None and desc_tr is None:
+        post.post_title_translated = None
+        post.description_translated = None
+        post.translated_source_lang = target
+        post.translation_engine_version = None
+        post.translated_at = None
+        return 0
+    post.post_title_translated = title_tr
+    post.description_translated = desc_tr
+    # Source lang = whichever field was actually non-target (for a mixed post,
+    # the translated field's language, not the already-English one).
+    post.translated_source_lang = title_lang or desc_lang
+    post.translation_engine_version = title_ev or desc_ev
+    post.translated_at = datetime.now(UTC)
+    return 1
+
+
+def _translate_one(
+    session, post, base_url: str, target: str, min_confidence: float,
+) -> int:
+    """Translate a post's title/description in place, each field independently,
+    honoring the per-post override (milestone 155): 'original' keeps the original
+    (clears any stored translation, no Interpreter call); 'force' translates even
+    below the confidence floor; 'auto' (default) runs the acceptance gate. Returns
+    1 if it stored a translation, else 0 (still marks the post handled so the sweep
+    won't revisit it)."""
+    if post.translation_override == "original":
+        return _store_translation(post, (None, None, None), (None, None, None), target)
+    force = post.translation_override == "force"
     title = (post.post_title or "").strip()
     desc = (html_to_plain(post.description) if post.description else "") or ""
     desc = desc.strip()
-    fields: list[tuple[str, str]] = []
+    title_res = _translate_field(title, base_url, target, min_confidence, force=force)
-    if title:
+    desc_res = _translate_field(desc, base_url, target, min_confidence, force=force)
-        fields.append(("title", title))
+    return _store_translation(post, title_res, desc_res, target)
-    if desc:
-        fields.append(("desc", desc))
-    if not fields:
-        post.translated_source_lang = target   # nothing to translate → handled
-        return 0
-    res = ic.translate([t for _, t in fields], base_url=base_url, target=target)
-    detected = res["detected_lang"] or target
-    if detected == target or res["engine"] == "none":
-        post.translated_source_lang = target   # already target language → handled
-        return 0
-    by_field = {f: res["translations"][i] for i, (f, _) in enumerate(fields)}
-    post.post_title_translated = by_field.get("title")
-    post.description_translated = by_field.get("desc")
-    post.translated_source_lang = detected
-    post.translation_engine_version = res["engine_version"]
-    post.translated_at = datetime.now(UTC)
-    return 1

docker-compose.yml

@@ -8,6 +8,35 @@
 # run `docker compose up` from this directory and switches images to
 # local builds + DEBUG logging.
 
+# Rolling-deploy safety (Swarm / `docker stack deploy`): update one task at a
+# time, START the new task before stopping the old (zero-downtime via the ingress
+# mesh), and if the new task doesn't reach a healthy state within `monitor`, roll
+# back to the previous image automatically. `monitor` is sized above web's
+# healthcheck start_period so a broken image that never goes healthy is caught.
+# Plain `docker compose up` ignores `deploy:` (it warns + skips), so the dev
+# override is unaffected. Referenced by each long-lived service below.
+x-deploy-policy: &deploy_policy
+  update_config:
+    order: start-first
+    failure_action: rollback
+    monitor: 90s
+  rollback_config:
+    order: start-first
+  restart_policy:
+    condition: any
+    delay: 10s
+
+# Worker liveness: ping THIS container's celery node over the broker. Lenient
+# (60s interval, 3 retries, 60s start_period) so a transient broker blip never
+# false-flags a worker into a rollback. `$$HOSTNAME` → `$HOSTNAME` for the shell;
+# celery's default node name is celery@<hostname> (the container id).
+x-celery-healthcheck: &celery_healthcheck
+  test: ["CMD-SHELL", "celery -A backend.app.celery_app:celery inspect ping -d celery@$$HOSTNAME --timeout 10 >/dev/null 2>&1"]
+  interval: 60s
+  timeout: 15s
+  retries: 3
+  start_period: 60s
+
 services:
   redis:
     image: redis:7-alpine
@@ -47,6 +76,24 @@ services:
   web:
     image: git.fabledsword.com/bvandeusen/fabledcurator:dev
     command: ["web"]
+    # Graceful shutdown: give the container time to drain in-flight work on a
+    # deploy (docker SIGTERMs, then SIGKILLs after this window — default is only
+    # 10s, far too short for real jobs). Hypercorn/Celery both warm-shut-down on
+    # SIGTERM; per-lane values sized to typical task length. Anything that still
+    # outruns the window is re-queued (task_reject_on_worker_lost) and re-driven
+    # by the 5-min recovery sweeps, so a kill never corrupts. web = short HTTP
+    # requests + the occasional file download.
+    stop_grace_period: 30s
+    # Liveness for rolling deploys: /api/health is a no-DB 200 (just proves the
+    # app booted + serves HTTP after `alembic upgrade head`). start_period covers
+    # the migration + boot so a slow start isn't mis-flagged.
+    healthcheck:
+      test: ["CMD-SHELL", "python -c \"import urllib.request,sys; sys.exit(0 if urllib.request.urlopen('http://localhost:8080/api/health', timeout=5).status==200 else 1)\""]
+      interval: 15s
+      timeout: 6s
+      retries: 3
+      start_period: 40s
+    deploy: *deploy_policy
     ports:
       - "${PORT:-8080}:8080"
     environment: &app_env
@@ -77,6 +124,10 @@ services:
   worker:
     image: git.fabledsword.com/bvandeusen/fabledcurator:dev
     command: ["worker"]
+    # Drain in-flight import/thumbnail/download tasks before SIGKILL on deploy.
+    stop_grace_period: 90s
+    healthcheck: *celery_healthcheck
+    deploy: *deploy_policy
     environment:
       <<: *app_env
       CELERY_QUEUES: default,import,thumbnail,download
@@ -93,6 +144,10 @@ services:
   scheduler:
     image: git.fabledsword.com/bvandeusen/fabledcurator:dev
     command: ["scheduler"]
+    # Quick maintenance/scan lane + beat — short tasks, modest drain window.
+    stop_grace_period: 60s
+    healthcheck: *celery_healthcheck
+    deploy: *deploy_policy
     environment:
       <<: *app_env
       CELERY_QUEUES: maintenance,scan
@@ -110,6 +165,12 @@ services:
   maintenance-long:
     image: git.fabledsword.com/bvandeusen/fabledcurator:dev
     command: ["worker"]
+    # Longest lane (DB backups, library audits, translation backfill) — give it
+    # the most room to finish a chunk gracefully. Chunked + idempotent, so a job
+    # that still outruns this resumes cleanly next run rather than corrupting.
+    stop_grace_period: 180s
+    healthcheck: *celery_healthcheck
+    deploy: *deploy_policy
     environment:
       <<: *app_env
       CELERY_QUEUES: maintenance_long
@@ -125,6 +186,10 @@ services:
   ml-worker:
     image: git.fabledsword.com/bvandeusen/fabledcurator-ml:dev
     command: ["ml-worker"]
+    # A single GPU inference pass can run tens of seconds — let it finish.
+    stop_grace_period: 120s
+    healthcheck: *celery_healthcheck
+    deploy: *deploy_policy
     environment:
       <<: *app_env
     volumes:

frontend/src/components/artist/ArtistManagementTab.vue

@@ -101,6 +101,47 @@
       </v-card>
     </v-dialog>
 
+    <section class="fc-artist-mgmt__sec">
+      <h2 class="fc-h2">Translation</h2>
+      <p class="fc-muted text-body-2 mb-3">
+        Re-translate every post by {{ overview.name }} through the current
+        Interpreter model — clears the stored translations and rebuilds them.
+        Use this after switching translation models to refresh just this artist.
+      </p>
+      <div class="d-flex align-center flex-wrap" style="gap: 10px;">
+        <v-btn
+          size="small" variant="tonal" rounded="pill"
+          prepend-icon="mdi-translate"
+          :loading="retranslating" :disabled="!translationEnabled"
+          @click="confirmRetranslate = true"
+        >Re-translate posts</v-btn>
+        <span v-if="!translationEnabled" class="fc-muted text-caption">
+          Translation is off — enable it in Settings → Maintenance.
+        </span>
+      </div>
+    </section>
+
+    <!-- m146: per-artist re-translate — clears + rebuilds this artist's stored
+         translations (used after a translation-model change). -->
+    <v-dialog v-model="confirmRetranslate" max-width="440">
+      <v-card>
+        <v-card-title class="fc-h2">Re-translate {{ overview.name }}?</v-card-title>
+        <v-card-text class="text-body-2">
+          Clears the stored translation for every post by
+          <strong>{{ overview.name }}</strong> and re-runs them through your
+          current Interpreter model. Unchanged text comes back from the cache
+          instantly. Runs in the background until done.
+        </v-card-text>
+        <v-card-actions>
+          <v-spacer />
+          <v-btn variant="text" @click="confirmRetranslate = false">Cancel</v-btn>
+          <v-btn color="accent" :loading="retranslating" @click="onRetranslate">
+            Re-translate
+          </v-btn>
+        </v-card-actions>
+      </v-card>
+    </v-dialog>
+
     <section class="fc-artist-mgmt__sec">
       <h2 class="fc-h2">Danger zone</h2>
       <ArtistDangerZone
@@ -113,9 +154,11 @@
 </template>
 
 <script setup>
-import { computed, ref } from 'vue'
+import { computed, onMounted, ref } from 'vue'
 import { useRouter, RouterLink } from 'vue-router'
 
+import { useApi } from '../../composables/useApi.js'
+import { useImportStore } from '../../stores/import.js'
 import { useSourcesStore } from '../../stores/sources.js'
 import { toast } from '../../utils/toast.js'
 import ArtistDangerZone from './ArtistDangerZone.vue'
@@ -125,8 +168,38 @@ const props = defineProps({
 })
 
 const router = useRouter()
+const api = useApi()
+const importStore = useImportStore()
 const sources = useSourcesStore()
 
+// m146: per-artist re-translate. Gated on translation being enabled globally
+// (the endpoint 400s otherwise) — read the shared import settings once.
+const translationEnabled = ref(false)
+const retranslating = ref(false)
+const confirmRetranslate = ref(false)
+
+onMounted(async () => {
+  try {
+    await importStore.loadSettings()
+    translationEnabled.value = !!importStore.settings?.translation_enabled
+  } catch { /* non-fatal — the button just stays disabled */ }
+})
+
+async function onRetranslate () {
+  retranslating.value = true
+  try {
+    await api.post('/api/settings/translation/retranslate', {
+      body: { artist_id: props.overview.id },
+    })
+    confirmRetranslate.value = false
+    toast({ text: `Re-translating ${props.overview.name}…`, type: 'success' })
+  } catch (e) {
+    toast({ text: `Re-translate failed: ${e.message}`, type: 'error' })
+  } finally {
+    retranslating.value = false
+  }
+}
+
 // #130: move a source into another artist.
 const moveOpen = ref(false)
 const moveSource = ref(null)

frontend/src/components/modal/AliasPickerDialog.vue

@@ -1,72 +0,0 @@
-<template>
-  <v-card>
-    <v-card-title>Treat as alias for…</v-card-title>
-    <v-card-text>
-      <p class="text-caption mb-2">
-        Pick the existing tag the model's prediction should map to. All
-        future predictions of this name will resolve to your tag.
-      </p>
-      <v-autocomplete
-        v-model="selectedId"
-        v-model:menu="menuOpen"
-        :items="results"
-        :item-title="(t) => t.fandom_name ? `${t.name} — ${t.fandom_name}` : t.name"
-        :item-value="(t) => t.id"
-        :loading="loading"
-        label="Canonical tag"
-        no-filter clearable density="compact"
-        @update:search="onSearch"
-        @keydown.enter.capture="onEnter"
-      />
-    </v-card-text>
-    <v-card-actions>
-      <v-spacer />
-      <v-btn @click="$emit('cancel')">Cancel</v-btn>
-      <v-btn
-        color="primary" rounded="pill" :disabled="!selectedId"
-        @click="$emit('confirm', selectedId)"
-      >Use this tag</v-btn>
-    </v-card-actions>
-  </v-card>
-</template>
-
-<script setup>
-import { ref } from 'vue'
-import { useApi } from '../../composables/useApi.js'
-import { useAcceptOnEnter } from '../../composables/useAcceptOnEnter.js'
-
-const props = defineProps({ category: { type: String, required: true } })
-const emit = defineEmits(['confirm', 'cancel'])
-
-const api = useApi()
-const results = ref([])
-const loading = ref(false)
-const selectedId = ref(null)
-let debounce = null
-
-// Enter on the closed dropdown confirms the selection instead of re-opening it.
-const { menuOpen, onEnter } = useAcceptOnEnter(() => {
-  if (selectedId.value != null) emit('confirm', selectedId.value)
-})
-
-function onSearch(q) {
-  if (debounce) clearTimeout(debounce)
-  debounce = setTimeout(async () => {
-    const query = (q || '').trim()
-    if (!query) { results.value = []; return }
-    loading.value = true
-    try {
-      // Scope the autocomplete to the prediction's category where it
-      // maps to a tag kind. Only 'character' surfaces as both a
-      // suggestion category and a tag kind now ('artist' + 'copyright'
-      // retired); other categories search unscoped.
-      const kind = props.category === 'character' ? 'character' : null
-      const params = { q: query, limit: 20 }
-      if (kind) params.kind = kind
-      results.value = await api.get('/api/tags/autocomplete', { params })
-    } finally {
-      loading.value = false
-    }
-  }, 200)
-}
-</script>

frontend/src/components/modal/SuggestionItem.vue

@@ -11,10 +11,6 @@
       {{ suggestion.display_name }}
       <span v-if="suggestion.rejected" class="fc-suggestion__rejected-tag"
         title="You rejected this for this image — un-reject to recover">rejected</span>
-      <span v-else-if="suggestion.creates_new_tag" class="fc-suggestion__new"
-        title="No matching tag yet — accepting creates it">+ new</span>
-      <span v-else-if="suggestion.via_alias" class="fc-suggestion__alias"
-        :title="`Mapped from the tagger's “${suggestion.raw_name}” via an alias`">alias</span>
     </span>
     <span class="fc-suggestion__score">{{ scorePct }}</span>
     <!-- Green ✓ / red ✗ pair (operator-asked 2026-06-28) mirrors the eval
@@ -46,40 +42,14 @@
         @click="$emit('dismiss', suggestion)"
       ><v-icon size="16">mdi-close</v-icon></button>
     </div>
-    <!-- Modal-safe kebab is baked into KebabMenu (this row lives in the
-         teleported image modal — #711). Only rendered when an alias action
-         applies — dismiss now lives on the red ✗, so a centroid hit with no
-         alias option has no menu. -->
-    <KebabMenu
-      v-if="hasMenu"
-      class="fc-suggestion__menu" size="small" variant="outlined"
-      :label="`More actions for ${suggestion.display_name}`"
-    >
-      <!-- Alias is a tagger-prediction remap, so only offer it for tagger
-           suggestions with a raw model key that aren't already aliased.
-           Centroid hits (raw_name null) have nothing to alias. -->
-      <v-list-item
-        v-if="suggestion.raw_name && !suggestion.via_alias"
-        @click="$emit('alias', suggestion)"
-      >
-        <v-list-item-title>Treat as alias for…</v-list-item-title>
-      </v-list-item>
-      <v-list-item
-        v-if="suggestion.via_alias"
-        @click="$emit('remove-alias', suggestion)"
-      >
-        <v-list-item-title>Remove alias</v-list-item-title>
-      </v-list-item>
-    </KebabMenu>
   </div>
 </template>
 
 <script setup>
 import { computed, inject } from 'vue'
-import KebabMenu from '../common/KebabMenu.vue'
 
 const props = defineProps({ suggestion: { type: Object, required: true } })
-defineEmits(['accept', 'alias', 'remove-alias', 'dismiss', 'undismiss'])
+defineEmits(['accept', 'dismiss', 'undismiss'])
 
 // #1206: on hover, tell the image viewer which crop produced this suggestion so
 // it highlights that region. Provided by ImageViewer/Explore; a no-op elsewhere.
@@ -92,12 +62,6 @@ function onLeave () {
 }
 
 const scorePct = computed(() => `${Math.round(props.suggestion.score * 100)}%`)
-// Kebab now only carries alias actions: show it when this suggestion can be
-// aliased (raw model key, not yet aliased) or is already aliased (so it can be
-// un-aliased). Centroid hits (no raw_name, no alias) have an empty menu → hide.
-const hasMenu = computed(() =>
-  Boolean(props.suggestion.raw_name) || Boolean(props.suggestion.via_alias)
-)
 </script>
 
 <style scoped>
@@ -119,26 +83,6 @@ const hasMenu = computed(() =>
   color: rgb(var(--v-theme-on-surface));
   overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
 }
-.fc-suggestion__new {
-  display: inline-block;
-  font-size: 10px; font-weight: 600;
-  color: rgb(var(--v-theme-accent));
-  background: rgba(var(--v-theme-accent), 0.12);
-  border: 1px solid rgb(var(--v-theme-accent), 0.4);
-  padding: 1px 6px; border-radius: 999px;
-  margin-left: 6px;
-  text-transform: uppercase; letter-spacing: 0.04em;
-}
-.fc-suggestion__alias {
-  display: inline-block;
-  font-size: 10px; font-weight: 600;
-  color: rgb(var(--v-theme-on-surface-variant));
-  background: rgb(var(--v-theme-surface-light));
-  border: 1px solid rgb(var(--v-theme-surface-light));
-  padding: 1px 6px; border-radius: 999px;
-  margin-left: 6px;
-  text-transform: uppercase; letter-spacing: 0.04em;
-}
 .fc-suggestion__score {
   flex: 0 0 auto; min-width: 38px; text-align: right;
   font-size: 11px;
@@ -166,10 +110,6 @@ const hasMenu = computed(() =>
   background: transparent; color: rgb(var(--v-theme-on-surface-variant));
   border: 1px solid rgb(var(--v-theme-on-surface-variant), 0.5);
 }
-.fc-suggestion__menu {
-  flex: 0 0 auto;
-}
-
 /* Rejected state: the row stays put (recovery), dimmed + red-edged so it
    reads as "handled, negative" without shouting over live suggestions. */
 .fc-suggestion--rejected {

frontend/src/components/modal/SuggestionsCategoryGroup.vue

@@ -26,8 +26,6 @@
         v-for="(s, i) in items" :key="`${s.display_name}-${i}`"
         :suggestion="s"
         @accept="$emit('accept', $event)"
-        @alias="$emit('alias', $event)"
-        @remove-alias="$emit('remove-alias', $event)"
         @dismiss="$emit('dismiss', $event)"
         @undismiss="$emit('undismiss', $event)"
       />
@@ -45,7 +43,7 @@ const props = defineProps({
   collapsible: { type: Boolean, default: false },
   defaultOpen: { type: Boolean, default: true }
 })
-defineEmits(['accept', 'alias', 'remove-alias', 'dismiss', 'undismiss', 'reject-all'])
+defineEmits(['accept', 'dismiss', 'undismiss', 'reject-all'])
 
 // Still-unhandled suggestions (not yet rejected) — how many "Reject rest" clears.
 const rejectableCount = computed(() => props.items.filter((s) => !s.rejected).length)

frontend/src/components/modal/SuggestionsPanel.vue

@@ -20,48 +20,39 @@
            first, so false positives are easy to spot and reject (reject-to-train
            for these heads). Small set — collapsible, open by default. -->
       <SuggestionsCategoryGroup
-        v-if="store.byCategory.system && store.byCategory.system.length"
+        v-if="store.aboveByCategory.system && store.aboveByCategory.system.length"
-        label="System" :items="store.byCategory.system"
+        label="System" :items="store.aboveByCategory.system"
         collapsible :default-open="true"
-        @accept="onAccept" @alias="onAlias" @remove-alias="onRemoveAlias"
+        @accept="onAccept"
         @dismiss="onDismiss" @undismiss="onUndismiss"
         @reject-all="onRejectAll('system')"
       />
       <SuggestionsCategoryGroup
         v-for="cat in peopleCats" :key="cat"
-        v-show="store.byCategory[cat] && store.byCategory[cat].length"
+        v-show="store.aboveByCategory[cat] && store.aboveByCategory[cat].length"
-        :label="labelFor(cat)" :items="store.byCategory[cat] || []"
+        :label="labelFor(cat)" :items="store.aboveByCategory[cat] || []"
-        @accept="onAccept" @alias="onAlias" @remove-alias="onRemoveAlias"
+        @accept="onAccept"
         @dismiss="onDismiss" @undismiss="onUndismiss"
         @reject-all="onRejectAll(cat)"
       />
       <SuggestionsCategoryGroup
-        v-if="store.byCategory.general && store.byCategory.general.length"
+        v-if="store.aboveByCategory.general && store.aboveByCategory.general.length"
-        label="General" :items="store.byCategory.general"
+        label="General" :items="store.aboveByCategory.general"
         collapsible :default-open="true"
-        @accept="onAccept" @alias="onAlias" @remove-alias="onRemoveAlias"
+        @accept="onAccept"
         @dismiss="onDismiss" @undismiss="onUndismiss"
         @reject-all="onRejectAll('general')"
       />
     </div>
-
-    <v-dialog v-model="aliasDialog" max-width="480">
-      <AliasPickerDialog
-        v-if="aliasTarget"
-        :category="aliasTarget.category"
-        @confirm="onAliasConfirm" @cancel="aliasDialog = false"
-      />
-    </v-dialog>
   </section>
 </template>
 
 <script setup>
 import { toast } from '../../utils/toast.js'
-import { computed, ref, watch } from 'vue'
+import { computed, watch } from 'vue'
 import { useSuggestionsStore, CATEGORY_LABELS } from '../../stores/suggestions.js'
 import { useModalStore } from '../../stores/modal.js'
 import SuggestionsCategoryGroup from './SuggestionsCategoryGroup.vue'
-import AliasPickerDialog from './AliasPickerDialog.vue'
 
 const props = defineProps({
   imageId: { type: Number, required: true },
@@ -100,13 +91,14 @@ const peopleCats = ['character']
 function labelFor(c) { return CATEGORY_LABELS[c] || c }
 
 const isEmpty = computed(() =>
-  Object.values(store.byCategory).every(list => !list || list.length === 0)
+  Object.values(store.aboveByCategory).every(list => !list || list.length === 0)
 )
 
 watch(() => props.imageId, (id) => {
   if (id == null) return
-  store.load(id)        // panel: curated, ≥ threshold
+  // One fetch (min=0) backs both surfaces: the panel reads aboveByCategory, the
-  store.loadAll(id)     // dropdown: full prediction set (low-confidence included)
+  // typed tag-input dropdown reads the full set. No second request.
+  store.load(id)
 }, { immediate: true })
 
 // After a successful accept/alias-accept, refresh the modal's current
@@ -125,31 +117,6 @@ async function onAccept(s) {
     toast({ text: `Accept failed: ${e.message}`, type: 'error' })
   }
 }
-
-const aliasDialog = ref(false)
-const aliasTarget = ref(null)
-function onAlias(s) { aliasTarget.value = s; aliasDialog.value = true }
-async function onAliasConfirm(canonicalTagId) {
-  try {
-    await store.aliasAccept(aliasTarget.value, canonicalTagId)
-    aliasDialog.value = false
-    await host.reloadTags()
-    emit('accepted')
-  } catch (e) {
-    toast({ text: `Alias failed: ${e.message}`, type: 'error' })
-  }
-}
-
-// Undo the model-key→tag mapping behind an aliased suggestion. The store
-// reloads suggestions so the prediction reverts to its raw form; the applied
-// canonical tag (if any) stays, so no tag-rail reload is needed.
-async function onRemoveAlias(s) {
-  try {
-    await store.removeAlias(s)
-  } catch (e) {
-    toast({ text: `Remove alias failed: ${e.message}`, type: 'error' })
-  }
-}
 </script>
 
 <style scoped>

frontend/src/components/modal/TagAutocomplete.vue

@@ -17,7 +17,14 @@
       density="compact" class="fc-tag-autocomplete__list"
     >
       <template v-for="(row, idx) in rows" :key="row.key">
-        <!-- Existing tag match (server autocomplete). -->
+        <!-- One unified row per DB tag (server autocomplete). Every suggestion is
+             a canonical tag now, so when the model ALSO scored this tag for the
+             image the row just carries its confidence (🔧 %) in place of the
+             redundant kind label — the coloured leading icon already shows kind.
+             That means a searched tag that's also a suggestion shows its % on ONE
+             row, with no dedup and no flicker. Picking it emits pick-existing;
+             TagPanel.findPending routes a matching suggestion through accept() so
+             the acceptance is still recorded + it drops from the panel. -->
         <v-list-item
           v-if="row.type === 'hit'"
           :active="idx === highlight" @click="onPickRow(row)"
@@ -32,32 +39,18 @@
             <span v-if="row.hit.fandom_name" class="text-caption">— {{ row.hit.fandom_name }}</span>
           </v-list-item-title>
           <template #append>
-            <span class="text-caption">{{ row.hit.kind }}</span>
+            <span
-          </template>
+              v-if="row.sugg"
-        </v-list-item>
+              class="fc-tag-autocomplete__sugg-tag"
-
+              :class="{ 'fc-tag-autocomplete__sugg-tag--below': !row.sugg.above_threshold }"
-        <!-- ML suggestion for THIS image that matches the typed query. Picking
+              :title="row.sugg.above_threshold
-             it routes through the same accept path as the Suggestions panel, so
+                ? 'The model suggests this tag for this image'
-             it's recorded + drops out of the panel (operator-asked 2026-06-07). -->
+                : 'The model scored this tag below its suggest threshold'"
-        <v-list-item
+            >
-          v-else-if="row.type === 'suggestion'"
-          :active="idx === highlight" @click="onPickRow(row)"
-          class="fc-tag-autocomplete__sugg"
-        >
-          <template #prepend>
-            <v-icon size="small" :color="store.colorFor(row.sugg.category)">
-              {{ iconFor(row.sugg.category) }}
-            </v-icon>
-          </template>
-          <v-list-item-title>
-            {{ row.sugg.display_name }}
-            <span v-if="row.sugg.creates_new_tag" class="text-caption">— new</span>
-          </v-list-item-title>
-          <template #append>
-            <span class="fc-tag-autocomplete__sugg-tag">
               <v-icon size="x-small">mdi-auto-fix</v-icon>
               {{ scorePct(row.sugg) }}
             </span>
+            <span v-else class="text-caption">{{ row.hit.kind }}</span>
           </template>
         </v-list-item>
 
@@ -100,11 +93,10 @@ import { useSuggestionsStore } from '../../stores/suggestions.js'
 import { useInflightToken } from '../../composables/useInflightToken.js'
 import FandomPicker from './FandomPicker.vue'
 
-const emit = defineEmits(['pick-existing', 'pick-new', 'accept-suggestion', 'cancel'])
+const emit = defineEmits(['pick-existing', 'pick-new', 'cancel'])
-// The host surface's applied tags (host.current?.tags). Both dropdown sections
+// The host surface's applied tags (host.current?.tags). The dropdown filters
-// filter against this so a just-added tag drops out of the search the moment
+// against this so a just-added tag drops out of the search the moment the chip
-// the chip rail updates, not after the next modal refresh (operator-asked
+// rail updates, not after the next modal refresh (operator-asked 2026-07-03).
-// 2026-07-03).
 const props = defineProps({
   appliedTags: { type: Array, default: () => [] },
 })
@@ -238,9 +230,6 @@ const createLabel = computed(() =>
 function scorePct (s) { return `${Math.round(s.score * 100)}%` }
 
 const appliedIds = computed(() => new Set(props.appliedTags.map(t => t.id)))
-const appliedNames = computed(() =>
-  new Set(props.appliedTags.map(t => `${t.kind}:${(t.name || '').toLowerCase()}`)),
-)
 
 // Server matches minus the image's applied tags. allowCreate/sameNameCharExists
 // keep reading the RAW hits — they reason about the tag universe (does this tag
@@ -249,49 +238,29 @@ const visibleHits = computed(() =>
   hits.value.filter(h => !appliedIds.value.has(h.id)),
 )
 
-// This image's suggestions that match the typed query, minus any the server
+// This image's suggestions keyed by canonical tag id, so a matching DB-tag row
-// autocomplete already returned (same name+kind) so a tag never shows twice.
+// can show the model's confidence inline. Every suggestion is a canonical tag
-// Sources the FULL prediction set (allByCategory, down to the store floor) — NOT
+// now (tagging-v2), so the id is the join key — no name/kind matching, no dedup,
-// the threshold-filtered panel list — so a low-confidence action/feature the
+// no flicker. Rejected suggestions are excluded: a dismissed tag shouldn't
-// model saw can be typed and accepted in canonical formatting instead of being
+// advertise a score in the type-to-add dropdown (un-reject lives in the panel).
-// hand-entered as a custom tag (operator-asked 2026-06-09). The typed query is
+const suggByTagId = computed(() => {
-// the only filter; the threshold no longer hides anything here.
+  const m = new Map()
-const suggestionHits = computed(() => {
+  for (const list of Object.values(suggestions.byCategory)) {
-  const q = parsedName.value.toLowerCase()
-  if (!q) return []
-  const seen = new Set(visibleHits.value.map(h => `${h.kind}:${h.name.toLowerCase()}`))
-  const out = []
-  for (const list of Object.values(suggestions.allByCategory)) {
     for (const s of list || []) {
-      // Rejected suggestions now stay in allByCategory (flagged) so the panel
-      // can show + un-reject them; keep them OUT of the type-to-add dropdown,
-      // whose job is finding a tag to ADD (un-reject lives in the panel).
       if (s.rejected) continue
-      // Already on the image (matched by canonical id or name+kind): nothing
+      if (s.canonical_tag_id != null) m.set(s.canonical_tag_id, s)
-      // to add. Covers the window between an add and the next suggestions
-      // fetch, where the stale row would otherwise still be pickable.
-      if (s.canonical_tag_id != null && appliedIds.value.has(s.canonical_tag_id)) continue
-      const key = `${s.category}:${s.display_name.toLowerCase()}`
-      if (appliedNames.value.has(key)) continue
-      if (!s.display_name.toLowerCase().includes(q)) continue
-      if (seen.has(key)) continue
-      seen.add(key)
-      out.push(s)
     }
   }
-  // Best matches first; cap generously so a specific typed query surfaces its
+  return m
-  // matches even when many predictions exist, while the list stays scrollable.
-  out.sort((a, b) => b.score - a.score)
-  return out.slice(0, 20)
 })
 
 // One ordered list backing both the rendered dropdown and keyboard nav, so the
-// highlight index maps 1:1 to a row regardless of which section it's in.
+// highlight index maps 1:1 to a row. Each hit is annotated with its suggestion
+// (score) when the model scored that tag for this image.
 const rows = computed(() => {
-  const r = visibleHits.value.map(h => ({ type: 'hit', key: `h${h.id}`, hit: h }))
+  const r = visibleHits.value.map(h => ({
-  for (const s of suggestionHits.value) {
+    type: 'hit', key: `h${h.id}`, hit: h, sugg: suggByTagId.value.get(h.id) || null,
-    r.push({ type: 'suggestion', key: `s${s.category}:${s.display_name}`, sugg: s })
+  }))
-  }
   if (allowCreate.value) r.push({ type: 'create', key: 'create' })
   return r
 })
@@ -313,16 +282,9 @@ function moveHighlight (delta) {
 // Dispatch a chosen dropdown row by its type.
 function onPickRow (row) {
   if (row.type === 'hit') { emit('pick-existing', row.hit); reset() }
-  else if (row.type === 'suggestion') { onPickSuggestion(row.sugg) }
   else { onCreate() }
 }
 
-// Picking an ML suggestion hands it to the parent, which runs the same accept
-// flow as the Suggestions panel (creates the tag if raw, records acceptance,
-// drops it from the panel). reset() clears the query; the panel-drop makes it
-// fall out of suggestionHits reactively.
-function onPickSuggestion (s) { emit('accept-suggestion', s); reset() }
-
 function onCreate () {
   const name = parsedName.value
   const kind = parsedKind.value
@@ -389,14 +351,16 @@ function reset () { query.value = ''; hits.value = []; highlight.value = 0 }
   border: 1px solid rgb(var(--v-theme-surface-light));
   border-radius: 6px;
 }
-/* Mark ML-suggestion rows so they read as distinct from typed/known matches. */
+/* The model-confidence badge on a row whose tag the model also scored. Accent
-.fc-tag-autocomplete__sugg {
+   when above the head's suggest threshold; muted when below (a low-confidence
-  border-left: 2px solid rgb(var(--v-theme-accent), 0.5);
+   match you can still type + pick). */
-}
 .fc-tag-autocomplete__sugg-tag {
   display: inline-flex; align-items: center; gap: 2px;
   font-size: 11px;
   font-family: 'JetBrains Mono', monospace;
   color: rgb(var(--v-theme-accent));
 }
+.fc-tag-autocomplete__sugg-tag--below {
+  color: rgb(var(--v-theme-on-surface-variant));
+}
 </style>

frontend/src/components/modal/TagChip.vue

@@ -1,7 +1,7 @@
 <template>
   <span class="fc-tag-chip" @mouseenter="onEnter" @mouseleave="onLeave">
     <v-chip
-      size="small" :closable="!unconfirmedAuto"
+      size="default" :closable="!unconfirmedAuto"
       :color="store.colorFor(tag.kind)" variant="tonal"
       class="fc-tag-chip__nav"
       role="link"
@@ -9,7 +9,7 @@
       @click="$emit('navigate', tag)"
       @click:close="$emit('remove', tag.id)"
     >
-      <v-icon start size="x-small">{{ iconFor(tag.kind) }}</v-icon>
+      <v-icon start size="small">{{ iconFor(tag.kind) }}</v-icon>
       <span class="fc-tag-chip__name">{{ tag.name }}</span><v-icon
         v-if="tag.is_system" end size="x-small" class="fc-tag-chip__system"
         title="System tag — tagged items are excluded from training other concepts"
@@ -27,13 +27,13 @@
           :title="`Yes — keep “${tag.name}” (trains the model, won't be retracted)`"
           :aria-label="`Confirm ${tag.name}`"
           @click.stop="$emit('confirm', tag)"
-        ><v-icon size="13">mdi-check</v-icon></button>
+        ><v-icon size="15">mdi-check</v-icon></button>
         <button
           type="button" class="fc-tag-chip__no"
           :title="`No — remove “${tag.name}”`"
           :aria-label="`Reject ${tag.name}`"
           @click.stop="$emit('remove', tag.id)"
-        ><v-icon size="13">mdi-close</v-icon></button>
+        ><v-icon size="15">mdi-close</v-icon></button>
       </span>
     </v-chip>
     <!-- Modal-safe kebab is baked into KebabMenu (this chip lives in the
@@ -143,7 +143,19 @@ function iconFor (k) { return KIND_ICONS[k] || 'mdi-tag' }
    chip's hover title. */
 .fc-tag-chip { display: inline-flex; align-items: center; gap: 1px; max-width: 100%; min-width: 0; }
 .fc-tag-chip__nav { max-width: 100%; min-width: 0; }
+/* Tonal chips (esp. character = info) wash out against the dark rail — the fill
+   is intentionally faint. Give every tag chip a thin border in its OWN kind
+   colour (currentColor = the tonal chip's themed foreground) so the edge reads
+   clearly without touching the fill (operator-asked 2026-07-08). Theme-aware:
+   currentColor tracks the kind colour in either light or dark. */
+.fc-tag-chip__nav { border: thin solid color-mix(in srgb, currentColor 55%, transparent); }
 .fc-tag-chip__nav :deep(.v-chip__content) { min-width: 0; overflow: hidden; }
+/* The bigger size=default chip widens Vuetify's negative start-margin on the
+   leading kind-icon, pulling it LEFT of the content box above — where that
+   overflow:hidden then clips the icon's left edge as a vertical slice
+   (operator-flagged 2026-07-08). Zero the pull so the icon sits inside the clip
+   box; the chip's own 12px padding keeps a comfortable left inset. */
+.fc-tag-chip__nav :deep(.v-icon--start) { margin-inline-start: 0; }
 .fc-tag-chip__name {
   overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
   min-width: 0; flex: 0 1 auto;
@@ -159,23 +171,27 @@ function iconFor (k) { return KIND_ICONS[k] || 'mdi-tag' }
 .fc-tag-chip__kebab { opacity: 0.7; }
 .fc-tag-chip:hover .fc-tag-chip__kebab { opacity: 1; }
 .fc-tag-chip__fandom { opacity: 0.7; font-size: 0.85em; }
-/* Provisional auto-tag: a compact green ✓ / red ✗ pair in place of the ✕. The
+/* Provisional auto-tag: a green ✓ / red ✗ pair in place of the ✕. The yes/no is
-   yes/no is obvious enough on its own, so there's no "auto" label (operator-asked
+   obvious enough on its own, so there's no "auto" label (operator-asked
    2026-07-07). flex:0 0 auto keeps it visible while the name ellipsis-truncates. */
 .fc-tag-chip__verdict {
-  flex: 0 0 auto; display: inline-flex; align-items: center; gap: 1px;
+  flex: 0 0 auto; display: inline-flex; align-items: center; gap: 3px;
-  margin-left: 3px;
+  margin-left: 5px;
 }
+/* Solid-filled (white glyph on a full success/error circle) so accept/reject
+   stay well-defined even on a muted tonal chip — e.g. character (info) — instead
+   of a faint icon that only lit up on hover. Mirrors the Suggestions rail's
+   verdict buttons so the affordance reads identically (operator-asked 2026-07-08). */
 .fc-tag-chip__yes, .fc-tag-chip__no {
   display: inline-flex; align-items: center; justify-content: center;
-  width: 18px; height: 18px; padding: 0; border: none; border-radius: 50%;
+  width: 22px; height: 22px; padding: 0; border: none; border-radius: 50%;
-  background: transparent; cursor: pointer; transition: background 0.1s;
+  color: #fff; cursor: pointer; opacity: 0.92;
+  transition: transform 0.1s, opacity 0.1s;
 }
-.fc-tag-chip__yes { color: rgb(var(--v-theme-success)); }
+.fc-tag-chip__yes { background: rgb(var(--v-theme-success)); }
-.fc-tag-chip__no { color: rgb(var(--v-theme-error)); }
+.fc-tag-chip__no { background: rgb(var(--v-theme-error)); }
-.fc-tag-chip__yes:hover { background: rgb(var(--v-theme-success), 0.16); }
+.fc-tag-chip__yes:hover, .fc-tag-chip__no:hover { opacity: 1; transform: scale(1.1); }
-.fc-tag-chip__no:hover { background: rgb(var(--v-theme-error), 0.16); }
 .fc-tag-chip__yes:focus-visible, .fc-tag-chip__no:focus-visible {
-  outline: 2px solid rgb(var(--v-theme-accent)); outline-offset: 1px;
+  outline: 2px solid rgb(var(--v-theme-accent)); outline-offset: 2px;
 }
 </style>

frontend/src/components/modal/TagPanel.vue

@@ -17,7 +17,6 @@
       ref="tagInputRef"
       :applied-tags="host.current?.tags || []"
       @pick-existing="onPickExisting" @pick-new="onPickNew"
-      @accept-suggestion="onAcceptSuggestion"
     />
 
     <v-alert v-if="errorMsg" type="error" variant="tonal" class="mt-2" closable>
@@ -134,7 +133,6 @@ async function onRemove(tagId) {
     // until the next modal open (operator-asked 2026-07-03).
     if (host.currentImageId != null) {
       suggestions.load(host.currentImageId)
-      suggestions.loadAll(host.currentImageId)
     }
     focusTagInput()
   }
@@ -178,18 +176,6 @@ async function onPickNew(payload) {
   }
   catch (e) { errorMsg.value = e.message }
 }
-// A suggestion picked from the autocomplete dropdown runs the SAME path as the
-// Suggestions panel's Accept: the store creates the tag if it's raw, records the
-// acceptance, and drops it from the panel; then we refresh the chip rail.
-async function onAcceptSuggestion(s) {
-  errorMsg.value = null
-  try {
-    await suggestions.accept(s)
-    await host.reloadTags()
-    focusTagInput()
-  } catch (e) { errorMsg.value = e.message }
-}
-
 const renameDialog = ref(false)
 const renameTarget = ref(null)
 

frontend/src/components/posts/PostCard.vue

@@ -70,6 +70,14 @@
           @click.stop="showOriginal = !showOriginal"
         >{{ showOriginal ? 'Show translation' : `Show original${sourceLangLabel}` }}</button>
 
+        <!-- Per-post translation override (#155): force a skipped translation on,
+             or keep the original for a confidently mis-flagged title. Only where
+             there's text to translate. -->
+        <PostTranslationControl
+          v-if="post.post_title || post.description_plain"
+          :post="post"
+        />
+
         <!-- Faithful (semantic) body render once expanded: backend-sanitized
              HTML (headings, lists, links, inline images). Collapsed and the
              no-detail fallback stay plain text. -->
@@ -136,6 +144,7 @@ import { useModalStore } from '../../stores/modal.js'
 import { usePostsStore } from '../../stores/posts.js'
 import { toPlainText } from '../../utils/htmlSanitize.js'
 import PostSeriesMenu from './PostSeriesMenu.vue'
+import PostTranslationControl from './PostTranslationControl.vue'
 
 const props = defineProps({
   post: { type: Object, required: true },

frontend/src/components/posts/PostTranslationControl.vue

@@ -0,0 +1,102 @@
+<template>
+  <!-- Sticky per-post translation override (#155). Quiet inline control under the
+       post title: force a skipped legit-foreign title on, or knock a wrongly
+       mis-translated one back to the original. The choice sticks through a
+       Re-translate-all. -->
+  <div class="fc-post-tx">
+    <span class="fc-post-tx__label">Translation:</span>
+    <v-menu :disabled="busy">
+      <template #activator="{ props: menuProps }">
+        <button
+          type="button" class="fc-post-tx__btn" v-bind="menuProps" :disabled="busy"
+          :aria-label="`Translation handling: ${currentLabel}`"
+        >
+          {{ currentLabel }}
+          <v-icon size="14">mdi-menu-down</v-icon>
+        </button>
+      </template>
+      <v-list density="compact" min-width="240" class="fc-post-tx__list">
+        <v-list-item
+          v-for="opt in OPTIONS" :key="opt.value"
+          :active="opt.value === current" @click="choose(opt.value)"
+        >
+          <template #prepend>
+            <v-icon size="small">{{ opt.icon }}</v-icon>
+          </template>
+          <v-list-item-title>{{ opt.label }}</v-list-item-title>
+          <v-list-item-subtitle>{{ opt.help }}</v-list-item-subtitle>
+        </v-list-item>
+      </v-list>
+    </v-menu>
+    <v-progress-circular v-if="busy" indeterminate size="13" width="2" />
+  </div>
+</template>
+
+<script setup>
+import { computed, ref } from 'vue'
+
+import { usePostsStore } from '../../stores/posts.js'
+import { toast } from '../../utils/toast.js'
+
+const props = defineProps({ post: { type: Object, required: true } })
+const posts = usePostsStore()
+const busy = ref(false)
+
+const OPTIONS = [
+  { value: 'auto', label: 'Auto', icon: 'mdi-cog-outline',
+    help: 'Translate only when confident enough' },
+  { value: 'force', label: 'Force translate', icon: 'mdi-translate',
+    help: 'Always translate, even at low confidence' },
+  { value: 'original', label: 'Keep original', icon: 'mdi-translate-off',
+    help: 'Never translate — keep the original text' },
+]
+
+const current = computed(() => props.post.translation_override || 'auto')
+const currentLabel = computed(
+  () => (OPTIONS.find((o) => o.value === current.value) || OPTIONS[0]).label,
+)
+
+async function choose (value) {
+  if (value === current.value || busy.value) return
+  busy.value = true
+  try {
+    const res = await posts.applyTranslationOverride(props.post.id, value)
+    if (res.applied === 'queued') {
+      toast({
+        text: 'Saved — this post will translate on the next sweep (service offline).',
+        type: 'info',
+      })
+    }
+  } catch (e) {
+    toast({ text: `Couldn't update translation: ${e.message}`, type: 'error' })
+  } finally {
+    busy.value = false
+  }
+}
+</script>
+
+<style scoped>
+.fc-post-tx {
+  display: inline-flex; align-items: center; gap: 6px;
+  margin: 2px 0 6px;
+}
+.fc-post-tx__label {
+  font-size: 0.72rem;
+  color: rgb(var(--v-theme-on-surface-variant));
+}
+.fc-post-tx__btn {
+  display: inline-flex; align-items: center; gap: 1px;
+  padding: 0; background: none; border: 0; cursor: pointer;
+  font-size: 0.72rem; font-weight: 700;
+  color: rgb(var(--v-theme-on-surface-variant));
+}
+.fc-post-tx__btn:hover { color: rgb(var(--v-theme-accent)); }
+.fc-post-tx__btn:focus-visible {
+  outline: 2px solid rgb(var(--v-theme-accent)); outline-offset: 1px;
+  border-radius: 2px;
+}
+.fc-post-tx__btn:disabled { cursor: default; opacity: 0.6; }
+.fc-post-tx__list :deep(.v-list-item-subtitle) {
+  font-size: 0.7rem;
+}
+</style>

frontend/src/components/settings/TranslationCard.vue

@@ -28,6 +28,21 @@
       @change="onSave"
     />
 
+    <!-- Acceptance floor (#155): latin-script translations below this Interpreter
+         confidence are kept as the original. Per-post overrides handle exceptions. -->
+    <v-text-field
+      v-model.number="minConfidence" label="Acceptance confidence"
+      type="number" min="0" max="1" step="0.01" density="compact"
+      hide-details style="max-width: 200px;" class="mb-1" :disabled="busy"
+      @change="onSaveConfidence"
+    />
+    <div class="fc-muted text-caption mb-3">
+      Latin-script titles Interpreter is less than this sure about (0–1) are kept
+      as the original; CJK is always translated. Default 0.90 — raise it to reject
+      more mis-detections, lower it to translate more. Per-post controls in the
+      posts feed override this either way.
+    </div>
+
     <div class="d-flex align-center flex-wrap mb-3" style="gap: 8px;">
       <v-icon size="12" :color="statusColor">mdi-circle</v-icon>
       <span class="fc-muted text-body-2">{{ statusText }}</span>
@@ -47,21 +62,123 @@
         prepend-icon="mdi-translate" :loading="running"
         :disabled="!enabled || !baseUrl" @click="onRun"
       >Translate now</v-btn>
-      <span v-if="status" class="fc-muted text-caption">
+      <v-btn
+        size="small" variant="tonal" rounded="pill"
+        prepend-icon="mdi-refresh" :loading="retranslating"
+        :disabled="!enabled || !baseUrl" @click="confirmAll = true"
+      >Re-translate all</v-btn>
+      <span
+        v-if="status && status.active"
+        class="fc-muted text-caption d-inline-flex align-center" style="gap: 6px;"
+      >
+        <v-progress-circular indeterminate size="12" width="2" color="accent" />
+        Translating… {{ status.untranslated_count }} remaining
+      </span>
+      <span v-else-if="status" class="fc-muted text-caption">
         {{ status.untranslated_count }}
         post{{ status.untranslated_count === 1 ? '' : 's' }} awaiting translation
       </span>
     </div>
+    <p
+      v-if="status && status.last_run && ['error', 'timeout'].includes(status.last_run.status)"
+      class="text-caption text-error mt-1 mb-0"
+    >
+      Last translation run ended with “{{ status.last_run.status }}”. It resumes on
+      the next sweep; check the Interpreter connection if it persists.
+    </p>
+    <p class="fc-muted text-caption mt-2 mb-0">
+      Use <strong>Re-translate all</strong> after switching the Interpreter model —
+      it clears every stored translation and re-runs it through the new model
+      (unchanged text is served from cache, so it's cheap). To refresh just one
+      artist, use the Re-translate button on that artist's page.
+    </p>
+
+    <v-divider class="my-3" />
+
+    <!-- Diagnostic probe (task #1376): paste text → what Interpreter DETECTS
+         (language + confidence) and returns, without saving. Used to see why a
+         short/abbreviation-heavy English title gets mis-detected, and to pick a
+         detection-confidence / min-length guard from real numbers. -->
+    <div class="mb-1">
+      <span class="fc-section-h">Test translation</span>
+      <p class="fc-muted text-caption mt-1 mb-2">
+        Paste a title or snippet to see what Interpreter detects and returns —
+        handy for checking why a short string is mis-detected. Nothing is saved.
+      </p>
+    </div>
+    <v-textarea
+      v-model="probeText" label="Text to test" rows="2" auto-grow
+      density="compact" hide-details class="mb-2" :disabled="!baseUrl"
+    />
+    <div class="d-flex align-center flex-wrap mb-2" style="gap: 8px;">
+      <v-btn
+        size="small" variant="tonal" rounded="pill" prepend-icon="mdi-magnify"
+        :loading="probing" :disabled="!baseUrl || !probeText.trim()"
+        @click="onProbe"
+      >Test translation</v-btn>
+    </div>
+    <v-sheet
+      v-if="probeResult" rounded class="pa-3 mb-1 text-body-2"
+      color="rgba(var(--v-theme-accent), 0.06)"
+    >
+      <div class="d-flex flex-wrap" style="gap: 4px 16px;">
+        <span>
+          <span class="fc-muted">Detected:</span>
+          <strong>{{ probeResult.detected_lang || '—' }}</strong>
+        </span>
+        <span v-if="probeResult.detected_confidence != null">
+          <span class="fc-muted">Confidence:</span>
+          <strong>{{ fmtConf(probeResult.detected_confidence) }}</strong>
+        </span>
+        <span>
+          <span class="fc-muted">Engine:</span>
+          {{ probeResult.engine || '—' }}<template
+            v-if="probeResult.engine_version"
+          > ({{ probeResult.engine_version }})</template>
+        </span>
+        <span><span class="fc-muted">Target:</span> {{ probeResult.target }}</span>
+      </div>
+      <v-divider class="my-2" />
+      <div class="fc-muted mb-1">
+        Result<template v-if="probeResult.detected_lang === probeResult.target">
+          — already {{ probeResult.target }}, so the sweep leaves it as-is</template>:
+      </div>
+      <p class="mb-0" style="white-space: pre-wrap;">{{
+        probeResult.translated || '(no change)'
+      }}</p>
+    </v-sheet>
 
     <v-alert
       v-if="err" type="error" variant="tonal" density="compact"
       class="mt-3" closable @click:close="err = null"
     >{{ err }}</v-alert>
+
+    <!-- m146: re-translate-everything is a bigger hammer than 'Translate now'
+         (it clears + rebuilds all translations), so it asks first. -->
+    <v-dialog v-model="confirmAll" max-width="440">
+      <v-card>
+        <v-card-title>Re-translate everything?</v-card-title>
+        <v-card-text class="text-body-2">
+          This clears the stored translation for <strong>every</strong> post and
+          re-runs them through your current Interpreter model. Text that hasn't
+          changed comes back from the cache instantly; anything the new model
+          translates differently is refreshed. It runs in the background until
+          done.
+        </v-card-text>
+        <v-card-actions>
+          <v-spacer />
+          <v-btn variant="text" @click="confirmAll = false">Cancel</v-btn>
+          <v-btn
+            color="accent" :loading="retranslating" @click="onRetranslateAll"
+          >Re-translate all</v-btn>
+        </v-card-actions>
+      </v-card>
+    </v-dialog>
   </MaintenanceTile>
 </template>
 
 <script setup>
-import { computed, onMounted, ref } from 'vue'
+import { computed, onMounted, onUnmounted, ref } from 'vue'
 import { toast } from '../../utils/toast.js'
 import { useApi } from '../../composables/useApi.js'
 import { useImportStore } from '../../stores/import.js'
@@ -73,13 +190,27 @@ const store = useImportStore()
 const enabled = ref(false)
 const baseUrl = ref('')
 const targetLang = ref('en')
+const minConfidence = ref(0.9)
 const busy = ref(false)
 const running = ref(false)
+const retranslating = ref(false)
+const confirmAll = ref(false)
 const testing = ref(false)
 const testResult = ref(null)   // null = not tested this session; true/false = last result
 const status = ref(null)
 const err = ref(null)
 
+// #1376 "Test translation" probe: paste text → detected lang/confidence + result.
+const probeText = ref('')
+const probing = ref(false)
+const probeResult = ref(null)
+
+// Confidence scale is Interpreter-defined (0–100 or 0–1) — show it as-is, just
+// trimmed to 2 decimals, so the operator reads the true number.
+function fmtConf (c) {
+  return c == null ? '' : Math.round(c * 100) / 100
+}
+
 const statusColor = computed(() => {
   if (!enabled.value || !baseUrl.value) return 'grey'
   return status.value?.healthy ? 'success' : 'error'
@@ -91,10 +222,16 @@ const statusText = computed(() => {
   return status.value.healthy ? 'Interpreter reachable' : 'Interpreter unreachable'
 })
 
+let pollTimer = null
 async function loadStatus() {
   try { status.value = await api.get('/api/settings/translation/status') }
   catch { status.value = null }
+  // Poll live while a sweep is running so the remaining count ticks down; stop
+  // when idle (a fresh trigger restarts it via its own setTimeout(loadStatus)).
+  clearTimeout(pollTimer)
+  if (status.value?.active) pollTimer = setTimeout(loadStatus, 3000)
 }
+onUnmounted(() => clearTimeout(pollTimer))
 
 async function onTest() {
   // Ping /v1/health for the CURRENTLY-typed URL (not the saved one), so a new
@@ -115,6 +252,21 @@ async function onTest() {
   }
 }
 
+async function onProbe () {
+  probing.value = true
+  err.value = null
+  probeResult.value = null
+  try {
+    probeResult.value = await api.post('/api/settings/translation/probe', {
+      body: { text: probeText.value.trim() },
+    })
+  } catch (e) {
+    err.value = e.message
+  } finally {
+    probing.value = false
+  }
+}
+
 onMounted(async () => {
   try {
     await store.loadSettings()
@@ -122,6 +274,7 @@ onMounted(async () => {
     enabled.value = !!s.translation_enabled
     baseUrl.value = s.interpreter_base_url || ''
     targetLang.value = s.translation_target_lang || 'en'
+    minConfidence.value = s.translation_min_confidence ?? 0.9
   } catch { /* non-fatal */ }
   await loadStatus()
 })
@@ -146,6 +299,14 @@ async function onSave() {
   })
   await loadStatus()
 }
+async function onSaveConfidence() {
+  // Clamp to [0, 1] so a stray value never bounces off the API 400.
+  let v = Number(minConfidence.value)
+  if (!Number.isFinite(v)) v = 0.9
+  v = Math.min(1, Math.max(0, v))
+  minConfidence.value = v
+  await save({ translation_min_confidence: v })
+}
 async function onRun() {
   running.value = true
   err.value = null
@@ -159,4 +320,18 @@ async function onRun() {
     setTimeout(loadStatus, 1500)   // let the sweep make a dent, then refresh
   }
 }
+async function onRetranslateAll() {
+  retranslating.value = true
+  err.value = null
+  try {
+    await api.post('/api/settings/translation/retranslate', { body: { all: true } })
+    confirmAll.value = false
+    toast({ text: 'Re-translating all posts…', type: 'success' })
+  } catch (e) {
+    err.value = e.message
+  } finally {
+    retranslating.value = false
+    setTimeout(loadStatus, 1500)   // reset spikes the untranslated count — refresh it
+  }
+}
 </script>

frontend/src/stores/explore.js

@@ -44,7 +44,9 @@ export const useExploreStore = defineStore('explore', () => {
       // empty and let the view explain why (anchor.has_embedding === false).
       if (detail.has_embedding) {
         const body = await api.get('/api/gallery/similar', {
-          params: { similar_to: numId, limit: NEIGHBOR_LIMIT },
+          // exclude_wip: keep work-in-progress out of the Explore rabbit-hole
+          // (the gallery's own "similar" button still shows it) — operator 2026-07-08.
+          params: { similar_to: numId, limit: NEIGHBOR_LIMIT, exclude_wip: 1 },
         })
         if (!t.isCurrent()) return
         neighbors.value = body.images || []

frontend/src/stores/posts.js

@@ -71,6 +71,24 @@ export const usePostsStore = defineStore('posts', () => {
     return await api.get(`/api/posts/${id}`)
   }
 
+  // Set a post's sticky translation override (auto/force/original, #155) and
+  // patch the loaded item in place with the endpoint's result (it translates /
+  // clears immediately when the service is up), so the card reflects the change
+  // without a feed reload.
+  async function applyTranslationOverride(postId, override) {
+    const res = await api.post(`/api/posts/${postId}/translation-override`, {
+      body: { override },
+    })
+    const item = items.value.find((p) => p.id === postId)
+    if (item) {
+      item.translation_override = res.translation_override
+      item.post_title_translated = res.post_title_translated
+      item.description_translated = res.description_translated
+      item.translated_source_lang = res.translated_source_lang
+    }
+    return res
+  }
+
   // Filter overlay for the around/older/newer (in-context anchored)
   // path. Keep this distinct from `filters.value` (the down-only feed)
   // so a normal-feed filter change doesn't leak into an active anchored
@@ -168,7 +186,7 @@ export const usePostsStore = defineStore('posts', () => {
   return {
     items, cursor, loading, done, error, filters,
     cursorOlder, cursorNewer, doneOlder, doneNewer, anchorId,
-    loadInitial, loadMore, getPostFull,
+    loadInitial, loadMore, getPostFull, applyTranslationOverride,
     loadAround, loadOlder, loadNewer,
   }
 })

frontend/src/stores/suggestions.js

@@ -1,6 +1,6 @@
 import { defineStore } from 'pinia'
 import { toast } from '../utils/toast.js'
-import { ref } from 'vue'
+import { computed, ref } from 'vue'
 import { useApi } from '../composables/useApi.js'
 import { useAsyncAction } from '../composables/useAsyncAction.js'
 import { useInflightToken } from '../composables/useInflightToken.js'
@@ -18,182 +18,112 @@ export const CATEGORY_LABELS = {
 
 export const useSuggestionsStore = defineStore('suggestions', () => {
   const api = useApi()
-  const byCategory = ref({})       // { category: [suggestion, ...] } — panel (≥ threshold)
+  // ONE source of truth per image: every trained head scored for this image
-  // The typed tag-input dropdown searches the model's FULL prediction set for
+  // (min=0), each row carrying above_threshold. The Suggestions PANEL renders
-  // the image (min=0, down to the store floor) so low-confidence actions/
+  // aboveByCategory; the typed tag-input dropdown reads the full set and
-  // features can be picked in canonical formatting (operator-asked 2026-06-09).
+  // annotates matching DB-tag rows with their score. A single fetch backs both —
-  const allByCategory = ref({})
+  // every suggestion is a canonical tag now (tagging-v2, #114), so there is no
+  // raw-prediction / create-new / alias-remap path to reconcile.
+  const byCategory = ref({})
   const { loading, error, run } = useAsyncAction({ errorAs: 'message' })
   let currentImageId = null
-  const inflightAll = useInflightToken()
+  // Audit 2026-06-02: without an inflight guard a late /suggestions response from
-  // Audit 2026-06-02: this store had no inflight guard — a late
+  // a prior image could overwrite byCategory while currentImageId points at a new
-  // /suggestions response from a prior image could overwrite
+  // one, and accept() could apply image A's tag to image B. Both guarded below by
-  // byCategory while currentImageId pointed at a new one, and
+  // capturing imageId at call-time and gating writes on the token.
-  // accept() dereferenced currentImageId AFTER an awaited POST so
-  // the subsequent /suggestions/accept could apply A's chosen tag
-  // to image B (and push it to the allowlist). Both fixed below
-  // by capturing imageId at call-time and gating writes on the token.
   const inflight = useInflightToken()
 
+  // The curated above-threshold subset the Suggestions panel shows. A rejected
+  // row that still scores above its cut stays (flagged) so the rejection is
+  // visible + reversible; below-threshold rows live only in the dropdown.
+  const aboveByCategory = computed(() => {
+    const out = {}
+    for (const [cat, list] of Object.entries(byCategory.value)) {
+      const kept = (list || []).filter(s => s.above_threshold)
+      if (kept.length) out[cat] = kept
+    }
+    return out
+  })
+
   async function load(imageId) {
-    // Cancel any in-flight load from the previous image so its late
+    // Cancel any in-flight load from the previous image so its late response
-    // response can't overwrite this image's byCategory.
+    // can't overwrite this image's list.
     inflight.cancel()
     currentImageId = imageId
     byCategory.value = {}  // cleared upfront so it stays empty on error
     const t = inflight.claim()
     await run(async () => {
-      const body = await api.get(`/api/images/${imageId}/suggestions`)
+      // min=0 → every head, each flagged above_threshold; the panel + the typed
+      // dropdown are both derived from this one payload.
+      const body = await api.get(`/api/images/${imageId}/suggestions`, {
+        params: { min: 0 },
+      })
       if (!t.isCurrent()) return
       byCategory.value = body.by_category || {}
     })
   }
 
-  // Load the full prediction set for the dropdown (separate inflight guard so a
+  // A stable identity for a suggestion across the panel + dropdown surfaces:
-  // late response from a prior image can't overwrite the current one's list).
+  // its canonical tag id (every suggestion has one now).
-  async function loadAll(imageId) {
-    inflightAll.cancel()
-    allByCategory.value = {}
-    const t = inflightAll.claim()
-    try {
-      const body = await api.get(`/api/images/${imageId}/suggestions`, {
-        params: { min: 0 },
-      })
-      if (!t.isCurrent()) return
-      allByCategory.value = body.by_category || {}
-    } catch {
-      // Dropdown is best-effort — the panel surfaces load errors.
-    }
-  }
-
-  // A stable identity for a suggestion across the two lists (panel vs dropdown
-  // are separate fetches, so object identity differs): tag id when known, else
-  // the raw display key.
   function _keyOf(s) {
-    return s.canonical_tag_id != null
+    return `id:${s.canonical_tag_id}`
-      ? `id:${s.canonical_tag_id}`
-      : `raw:${s.category}:${(s.display_name || '').toLowerCase()}`
   }
 
-  // Drop an accepted/dismissed suggestion from BOTH the panel list and the
+  // Drop an accepted suggestion from the list so it can't reappear.
-  // dropdown's full list so it can't reappear in either surface.
   function _dropEverywhere(suggestion) {
     const key = _keyOf(suggestion)
-    const cat = suggestion.category
+    const list = byCategory.value[suggestion.category]
-    for (const map of [byCategory.value, allByCategory.value]) {
+    if (list) byCategory.value[suggestion.category] = list.filter(s => _keyOf(s) !== key)
-      const list = map[cat]
-      if (list) map[cat] = list.filter(s => _keyOf(s) !== key)
-    }
   }
 
-  // Flip the `rejected` flag on the matching suggestion in BOTH lists in place,
+  // Flip the `rejected` flag on the matching suggestion in place, so a
-  // so a reject/un-reject shows immediately without dropping the row (visible,
+  // reject/un-reject shows immediately without dropping the row (visible,
   // reversible rejection — misclick recovery, operator-asked 2026-06-27).
   function _setRejectedEverywhere(suggestion, value) {
     const key = _keyOf(suggestion)
-    const cat = suggestion.category
+    for (const s of byCategory.value[suggestion.category] || []) {
-    for (const map of [byCategory.value, allByCategory.value]) {
+      if (_keyOf(s) === key) s.rejected = value
-      for (const s of map[cat] || []) {
-        if (_keyOf(s) === key) s.rejected = value
-      }
     }
   }
 
-  // opts.tagId: the tag's known id, when the caller already created/resolved
+  // opts.tagId: the tag's known id when the caller already resolved it (TagPanel's
-  // it (TagPanel's manual-add-matches-suggestion path). Passed separately —
+  // manual-add-matches-suggestion path). Passed separately — NOT spread onto the
-  // NOT spread onto the suggestion — because _dropEverywhere keys off the
+  // suggestion — because _dropEverywhere keys off the suggestion object.
-  // suggestion object, and mutating canonical_tag_id on a raw suggestion
-  // would stop it matching its own row in the lists.
   async function accept(suggestion, { tagId: knownTagId = null } = {}) {
-    // Capture imageId so a mid-flight prev/next can't reroute the
+    // Capture imageId so a mid-flight prev/next can't reroute the accept POST to
-    // accept POST to a different image AND push the tag to that
+    // a different image.
-    // image's allowlist.
     const imageId = currentImageId
     if (imageId == null) return
-    // Raw tags (creates_new_tag) have no canonical_tag_id; the backend's
+    const tagId = knownTagId ?? suggestion.canonical_tag_id
-    // accept endpoint needs a tag_id, so for raw tags we create the tag
-    // first via the existing /api/tags endpoint, then accept by id.
-    let tagId = knownTagId ?? suggestion.canonical_tag_id
-    if (tagId == null) {
-      const created = await api.post('/api/tags', {
-        body: { name: suggestion.display_name, kind: suggestion.category }
-      })
-      tagId = created.id
-    }
     await api.post(`/api/images/${imageId}/suggestions/accept`, {
       body: { tag_id: tagId }
     })
-    // Only drop from THIS image's category list — if the user navigated,
+    // Only drop from THIS image's list — if the user navigated, the new image
-    // the new image has its own suggestions and this drop would corrupt them.
+    // has its own suggestions and this drop would corrupt them.
     if (currentImageId === imageId) {
       _dropEverywhere(suggestion)
     }
     _acceptToast('Tagged', suggestion.display_name)
   }
 
-  // One non-blocking toast for accept/alias. The accepted tag is applied to this
+  // One non-blocking toast for accept. The accepted tag is applied to this image
-  // image and feeds head training; head auto-apply handles propagation (earned),
+  // and feeds head training; head auto-apply handles propagation (earned).
-  // so there's no instant fan-out to project.
   function _acceptToast(verb, displayName) {
     toast({ text: `${verb}: ${displayName}`, type: 'success' })
   }
 
-  async function aliasAccept(suggestion, canonicalTagId) {
+  // Find a live (non-rejected) suggestion matching a manually-picked tag — by
-    const imageId = currentImageId
+  // canonical id when known, else by (kind, name). Manually adding a tag the
-    if (imageId == null) return
+  // model also suggested must be indistinguishable from accepting the suggestion
-    // The alias MUST be stored under the raw model key — resolution looks up the
+  // (recorded + dropped from the panel), so TagPanel routes matches through
-    // raw prediction key, not the normalized display name. Sending display_name
+  // accept() (operator-asked 2026-07-03).
-    // (the old bug) stored an alias that never resolved, so the prediction kept
-    // reappearing unaliased. raw_name is null only for centroid hits, which
-    // can't be aliased (the UI hides the action for them).
-    const aliasString = suggestion.raw_name ?? suggestion.display_name
-    await api.post(`/api/images/${imageId}/suggestions/alias`, {
-      body: {
-        alias_string: aliasString,
-        alias_category: suggestion.category,
-        canonical_tag_id: canonicalTagId
-      }
-    })
-    if (currentImageId === imageId) {
-      _dropEverywhere(suggestion)
-    }
-    _acceptToast('Aliased & tagged', suggestion.display_name)
-  }
-
-  // Remove the alias behind an aliased suggestion (the raw prediction reverts to
-  // its unaliased form on reload). The canonical tag stays applied if it was
-  // accepted — this only undoes the model-key→tag mapping.
-  async function removeAlias(suggestion) {
-    const imageId = currentImageId
-    if (imageId == null || suggestion.raw_name == null) return
-    await api.delete(
-      `/api/aliases/${encodeURIComponent(suggestion.raw_name)}/${encodeURIComponent(suggestion.category)}`
-    )
-    if (currentImageId === imageId) {
-      await load(imageId)
-      await loadAll(imageId)
-    }
-    toast({ text: `Alias removed: ${suggestion.display_name}`, type: 'success' })
-  }
-
-  // Find a live (non-rejected) pending suggestion matching a manually-picked
-  // tag — by canonical id when known, else by (kind, name). Manually adding a
-  // tag the model also suggested must be indistinguishable from accepting the
-  // suggestion (recorded + dropped from the panel), so TagPanel routes matches
-  // through accept() (operator-asked 2026-07-03). Searches the full dropdown
-  // set first, then the panel list (loadAll is best-effort and can be empty).
   function findPending(kind, name, tagId = null) {
     const lname = (name || '').toLowerCase()
-    for (const map of [allByCategory.value, byCategory.value]) {
+    for (const list of Object.values(byCategory.value)) {
-      for (const list of Object.values(map)) {
+      for (const s of list || []) {
-        for (const s of list || []) {
+        if (s.rejected) continue
-          if (s.rejected) continue
+        if (tagId != null && s.canonical_tag_id === tagId) return s
-          if (tagId != null && s.canonical_tag_id === tagId) return s
+        if (s.category === kind && (s.display_name || '').toLowerCase() === lname) return s
-          if (
-            s.category === kind &&
-            (s.display_name || '').toLowerCase() === lname
-          ) return s
-        }
       }
     }
     return null
@@ -202,14 +132,8 @@ export const useSuggestionsStore = defineStore('suggestions', () => {
   async function dismiss(suggestion) {
     const imageId = currentImageId
     if (imageId == null) return
-    // Dismiss needs a tag_id. Raw tags (creates_new_tag) have none, so there's
-    // nothing to persist a rejection against — drop them client-side as before.
     // Canonical tags persist a rejection and STAY in the list flagged rejected,
     // so the operator can see it and one-click un-reject (misclick recovery).
-    if (suggestion.canonical_tag_id == null) {
-      if (currentImageId === imageId) _dropEverywhere(suggestion)
-      return
-    }
     await api.post(`/api/images/${imageId}/suggestions/dismiss`, {
       body: { tag_id: suggestion.canonical_tag_id }
     })
@@ -218,33 +142,31 @@ export const useSuggestionsStore = defineStore('suggestions', () => {
     }
   }
 
-  // Reject every still-unhandled suggestion in a category in one go ("confirm
+  // Reject every still-unhandled VISIBLE (above-threshold) suggestion in a
-  // the good ones, reject the rest" — operator-asked 2026-07-06). Canonical tags
+  // category in one go ("confirm the good ones, reject the rest" — operator-asked
-  // persist a rejection and STAY flagged rejected (reversible, one-click
+  // 2026-07-06). Only touches what the panel shows, not the low-confidence tail
-  // un-reject); raw creates-new-tag rows drop client-side. Dispatched in parallel
+  // the dropdown carries. Dispatched in parallel so a big section clears fast.
-  // so a big section clears fast.
   async function dismissRemaining(category) {
     const imageId = currentImageId
     if (imageId == null) return
-    const targets = (byCategory.value[category] || []).filter((s) => !s.rejected)
+    const targets = (byCategory.value[category] || []).filter(
+      (s) => s.above_threshold && !s.rejected
+    )
     if (!targets.length) return
-    const canon = targets.filter((s) => s.canonical_tag_id != null)
+    await Promise.all(targets.map((s) =>
-    const raw = targets.filter((s) => s.canonical_tag_id == null)
-    await Promise.all(canon.map((s) =>
       api.post(`/api/images/${imageId}/suggestions/dismiss`, {
         body: { tag_id: s.canonical_tag_id },
       })
     ))
     if (currentImageId === imageId) {
-      canon.forEach((s) => _setRejectedEverywhere(s, true))
+      targets.forEach((s) => _setRejectedEverywhere(s, true))
-      raw.forEach((s) => _dropEverywhere(s))
     }
   }
 
   // Undo a per-image dismissal — the suggestion reverts to a live row.
   async function undismiss(suggestion) {
     const imageId = currentImageId
-    if (imageId == null || suggestion.canonical_tag_id == null) return
+    if (imageId == null) return
     await api.post(`/api/images/${imageId}/suggestions/undismiss`, {
       body: { tag_id: suggestion.canonical_tag_id }
     })
@@ -254,8 +176,7 @@ export const useSuggestionsStore = defineStore('suggestions', () => {
   }
 
   return {
-    byCategory, allByCategory, loading, error,
+    byCategory, aboveByCategory, loading, error,
-    load, loadAll, accept, aliasAccept, removeAlias, dismiss, dismissRemaining,
+    load, accept, dismiss, dismissRemaining, undismiss, findPending
-    undismiss, findPending
   }
 })

frontend/test/suggestions.spec.js

@@ -16,25 +16,44 @@ function stubFetch(handler) {
   })
 }
 
+// Every suggestion is a canonical DB tag now (tagging-v2): a real id, flagged
+// above/below its head's suggest threshold. No raw / creates-new / alias cases.
 const sugg = (over = {}) => ({
   canonical_tag_id: 7,
   display_name: 'Ichigo',
   category: 'character',
   score: 0.9,
   source: 'head',
-  creates_new_tag: false,
+  above_threshold: true,
   rejected: false,
   ...over,
 })
 
-// Seed the store through its own load/loadAll so currentImageId is set the
+// Seed the store through its single load() so currentImageId is set the way the
-// way the panel sets it (accept() derives the image from it).
+// panel sets it (accept() derives the image from it).
 async function seed(store, byCategory) {
   stubFetch(() => ({ status: 200, body: { by_category: byCategory } }))
   await store.load(1)
-  await store.loadAll(1)
 }
 
+describe('suggestions store: load derives aboveByCategory', () => {
+  beforeEach(() => setActivePinia(createPinia()))
+  afterEach(() => vi.restoreAllMocks())
+
+  it('one fetch backs both surfaces: byCategory is the full set, aboveByCategory the panel subset', async () => {
+    const s = useSuggestionsStore()
+    await seed(s, {
+      general: [
+        sugg({ canonical_tag_id: 1, display_name: 'sword', category: 'general' }),
+        sugg({ canonical_tag_id: 2, display_name: 'faint', category: 'general', above_threshold: false }),
+      ],
+    })
+    expect(s.byCategory.general).toHaveLength(2)          // dropdown sees all
+    expect(s.aboveByCategory.general).toHaveLength(1)      // panel sees above-threshold only
+    expect(s.aboveByCategory.general[0].display_name).toBe('sword')
+  })
+})
+
 describe('suggestions store: findPending (manual add == accept, 2026-07-03)', () => {
   beforeEach(() => setActivePinia(createPinia()))
   afterEach(() => vi.restoreAllMocks())
@@ -45,15 +64,12 @@ describe('suggestions store: findPending (manual add == accept, 2026-07-03)', ()
     expect(s.findPending('general', 'unrelated', 7)?.display_name).toBe('Ichigo')
   })
 
-  it('matches raw suggestions by kind + name, case-insensitively', async () => {
+  it('matches by kind + name, case-insensitively', async () => {
     const s = useSuggestionsStore()
     await seed(s, {
-      general: [sugg({
+      general: [sugg({ canonical_tag_id: 12, display_name: 'Holding Sword', category: 'general' })],
-        canonical_tag_id: null, display_name: 'Holding Sword',
-        category: 'general', creates_new_tag: true,
-      })],
     })
-    expect(s.findPending('general', 'holding sword')).toBeTruthy()
+    expect(s.findPending('general', 'holding sword')?.canonical_tag_id).toBe(12)
     // Kind must match: same name under another kind is a different tag.
     expect(s.findPending('character', 'holding sword')).toBeNull()
   })
@@ -66,37 +82,31 @@ describe('suggestions store: findPending (manual add == accept, 2026-07-03)', ()
   })
 })
 
-describe('suggestions store: accept with a known tag id', () => {
+describe('suggestions store: accept', () => {
   beforeEach(() => setActivePinia(createPinia()))
   afterEach(() => vi.restoreAllMocks())
 
-  it('POSTs only the accept endpoint (no tag create) and drops the row', async () => {
+  it('POSTs only the accept endpoint (canonical id) and drops the row', async () => {
     const s = useSuggestionsStore()
     await seed(s, { character: [sugg()] })
     const calls = []
     stubFetch((url, init) => {
-      calls.push({ url, method: init?.method })
+      calls.push({ url, method: init?.method, body: init?.body })
       return { status: 200, body: { accepted: true, tag_id: 7 } }
     })
-    await s.accept(s.byCategory.character[0], { tagId: 7 })
+    await s.accept(s.byCategory.character[0])
     expect(calls).toHaveLength(1)
     expect(calls[0].url).toContain('/api/images/1/suggestions/accept')
+    expect(JSON.parse(calls[0].body)).toEqual({ tag_id: 7 })
     expect(s.byCategory.character).toHaveLength(0)
-    expect(s.allByCategory.character).toHaveLength(0)
   })
 
-  it('a RAW suggestion accepted with a known tagId skips create AND still drops its row', async () => {
+  it('honors a known tagId and still drops the row by the suggestion identity', async () => {
-    // TagPanel's manual-create path: the tag was just created by
+    // TagPanel's manual-add-matches-suggestion path passes the resolved tag id;
-    // host.createAndAdd, so accept must not create again — and the drop must
+    // accept sends exactly it and drops the original suggestion row (which keys
-    // key off the original raw suggestion object, not the resolved id
+    // off the suggestion object, not the passed id).
-    // (regression: spreading canonical_tag_id onto the suggestion changed its
-    // identity key and left the panel row behind).
     const s = useSuggestionsStore()
-    const raw = sugg({
+    await seed(s, { general: [sugg({ canonical_tag_id: 12, display_name: 'Holding Sword', category: 'general' })] })
-      canonical_tag_id: null, display_name: 'Holding Sword',
-      category: 'general', creates_new_tag: true,
-    })
-    await seed(s, { general: [raw] })
     const calls = []
     stubFetch((url, init) => {
       calls.push({ url, body: init?.body })
@@ -107,6 +117,5 @@ describe('suggestions store: accept with a known tag id', () => {
     expect(calls[0].url).toContain('/api/images/1/suggestions/accept')
     expect(JSON.parse(calls[0].body)).toEqual({ tag_id: 42 })
     expect(s.byCategory.general).toHaveLength(0)
-    expect(s.allByCategory.general).toHaveLength(0)
   })
 })

tests/test_api_posts.py

@@ -184,6 +184,68 @@ async def test_rejects_bad_direction(client):
     assert (await resp.get_json())["error"] == "invalid_direction"
 
 
+@pytest.mark.asyncio
+async def test_translation_override_rejects_bad_value(client, seeded_post):
+    _, _, post = seeded_post
+    resp = await client.post(
+        f"/api/posts/{post.id}/translation-override", json={"override": "nope"}
+    )
+    assert resp.status_code == 400
+    assert (await resp.get_json())["error"] == "invalid_override"
+
+
+@pytest.mark.asyncio
+async def test_translation_override_404_for_unknown(client):
+    resp = await client.post(
+        "/api/posts/999999/translation-override", json={"override": "original"}
+    )
+    assert resp.status_code == 404
+
+
+@pytest.mark.asyncio
+async def test_translation_override_original_clears_and_keeps(client, db, seeded_post):
+    # 'keep original' clears a stored translation immediately (no Interpreter) and
+    # marks the post handled (== target). Asserts on the response, which reflects
+    # the endpoint's own committed session.
+    _, _, post = seeded_post
+    post.post_title_translated = "STALE"
+    post.description_translated = "STALE"
+    post.translated_source_lang = "de"
+    await db.commit()
+    resp = await client.post(
+        f"/api/posts/{post.id}/translation-override", json={"override": "original"}
+    )
+    assert resp.status_code == 200
+    body = await resp.get_json()
+    assert body["translation_override"] == "original"
+    assert body["applied"] == "cleared"
+    assert body["post_title_translated"] is None
+    assert body["translated_source_lang"] == "en"
+
+
+@pytest.mark.asyncio
+async def test_translation_override_force_queues_when_disabled(client, seeded_post):
+    # Translation disabled (default) → can't translate inline; the override is
+    # saved and the post is queued (columns NULLed) for the next sweep.
+    _, _, post = seeded_post
+    resp = await client.post(
+        f"/api/posts/{post.id}/translation-override", json={"override": "force"}
+    )
+    assert resp.status_code == 200
+    body = await resp.get_json()
+    assert body["translation_override"] == "force"
+    assert body["applied"] == "queued"
+    assert body["translated_source_lang"] is None
+
+
+@pytest.mark.asyncio
+async def test_list_exposes_translation_override(client, seeded_post):
+    resp = await client.get("/api/posts")
+    assert resp.status_code == 200
+    body = await resp.get_json()
+    assert body["items"][0]["translation_override"] == "auto"   # default
+
+
 @pytest.mark.asyncio
 async def test_detail_returns_uncapped_thumbnails(client, db):
     """Feed query caps thumbnails at 6 for previews; detail endpoint

tests/test_api_settings.py

@@ -53,6 +53,26 @@ async def test_translation_settings_defaults_and_patch(client):
         "/api/settings/import", json={"interpreter_base_url": 123})).status_code == 400
 
 
+@pytest.mark.asyncio
+async def test_translation_min_confidence_default_and_patch(client):
+    # #155: the latin-script acceptance floor is an operator-tunable setting,
+    # default 0.9 (stricter than the old hardcoded 0.8).
+    body = await (await client.get("/api/settings/import")).get_json()
+    assert body["translation_min_confidence"] == 0.9
+
+    ok = await client.patch(
+        "/api/settings/import", json={"translation_min_confidence": 0.95}
+    )
+    assert ok.status_code == 200
+    assert (await ok.get_json())["translation_min_confidence"] == 0.95
+
+    # Out-of-range + wrong-type are rejected.
+    assert (await client.patch(
+        "/api/settings/import", json={"translation_min_confidence": 1.5})).status_code == 400
+    assert (await client.patch(
+        "/api/settings/import", json={"translation_min_confidence": "high"})).status_code == 400
+
+
 @pytest.mark.asyncio
 async def test_translation_status_defaults(client):
     # Off + no URL → no network health call, healthy False (#143).
@@ -61,6 +81,34 @@ async def test_translation_status_defaults(client):
     assert body["base_url_set"] is False
     assert body["healthy"] is False
     assert "untranslated_count" in body
+    assert body["active"] is False      # no sweep running
+    assert body["last_run"] is None
+
+
+@pytest.mark.asyncio
+async def test_translation_status_reports_active_and_last_run(client, db):
+    # A running translate/retranslate TaskRun → active True; the most recent
+    # finished one → last_run (task basename + status).
+    from datetime import UTC, datetime
+
+    from backend.app.models import TaskRun
+
+    db.add(TaskRun(
+        celery_task_id="r-run", queue="maintenance_long",
+        task_name="backend.app.tasks.translation.retranslate_posts",
+        started_at=datetime.now(UTC), status="running",
+    ))
+    db.add(TaskRun(
+        celery_task_id="r-done", queue="maintenance_long",
+        task_name="backend.app.tasks.translation.translate_posts",
+        started_at=datetime.now(UTC), finished_at=datetime.now(UTC),
+        status="success",
+    ))
+    await db.commit()
+    body = await (await client.get("/api/settings/translation/status")).get_json()
+    assert body["active"] is True
+    assert body["last_run"]["task"] == "translate_posts"
+    assert body["last_run"]["status"] == "success"
 
 
 @pytest.mark.asyncio
@@ -85,9 +133,10 @@ async def test_translation_test_connection(client, monkeypatch):
 
 @pytest.mark.asyncio
 async def test_translation_run_enqueues_when_configured(client, monkeypatch):
+    sink = {}
     monkeypatch.setattr(
         "backend.app.tasks.translation.translate_posts.delay",
-        lambda *a, **k: type("R", (), {"id": "t1"})(),
+        lambda *a, **k: sink.update(k) or type("R", (), {"id": "t1"})(),
     )
     await client.patch("/api/settings/import", json={
         "translation_enabled": True, "interpreter_base_url": "http://i.lan",
@@ -95,6 +144,108 @@ async def test_translation_run_enqueues_when_configured(client, monkeypatch):
     resp = await client.post("/api/settings/translation/run")
     assert resp.status_code == 202
     assert (await resp.get_json())["celery_task_id"] == "t1"
+    assert sink["drain"] is True   # "Translate now" chases the whole backlog
+
+
+@pytest.mark.asyncio
+async def test_translation_probe_requires_text(client):
+    resp = await client.post(
+        "/api/settings/translation/probe", json={"text": "  "})
+    assert resp.status_code == 400
+
+
+@pytest.mark.asyncio
+async def test_translation_probe_requires_base_url(client):
+    # Text given but no Interpreter URL saved → nothing to probe against.
+    resp = await client.post(
+        "/api/settings/translation/probe", json={"text": "hello"})
+    assert resp.status_code == 400
+
+
+@pytest.mark.asyncio
+async def test_translation_probe_returns_detection(client, monkeypatch):
+    # The diagnostic surfaces detected language + confidence + result, unsaved.
+    monkeypatch.setattr(
+        "backend.app.api.settings.ic.translate",
+        lambda texts, **k: {
+            "translations": ["Work in Progress"],
+            "detected_lang": "de", "detected_confidence": 71.5,
+            "engine": "llm", "engine_version": "v1",
+        },
+    )
+    await client.patch("/api/settings/import", json={
+        "translation_enabled": True, "interpreter_base_url": "http://i.lan",
+    })
+    resp = await client.post(
+        "/api/settings/translation/probe", json={"text": "WIP"})
+    assert resp.status_code == 200
+    body = await resp.get_json()
+    assert body["detected_lang"] == "de"
+    assert body["detected_confidence"] == 71.5
+    assert body["translated"] == "Work in Progress"
+    assert body["target"] == "en"
+
+
+def _fake_retranslate(monkeypatch, sink):
+    # Record the kwargs the endpoint enqueues with, return a fake AsyncResult.
+    monkeypatch.setattr(
+        "backend.app.tasks.translation.retranslate_posts.delay",
+        lambda *a, **k: sink.update(k) or type("R", (), {"id": "r1"})(),
+    )
+
+
+@pytest.mark.asyncio
+async def test_translation_retranslate_requires_config(client):
+    # Disabled → 400 even with an explicit scope (no reset is enqueued).
+    resp = await client.post(
+        "/api/settings/translation/retranslate", json={"all": True})
+    assert resp.status_code == 400
+
+
+@pytest.mark.asyncio
+async def test_translation_retranslate_requires_target(client, monkeypatch):
+    # 'all' must be explicit: an empty body is a 400, so a stray call can't
+    # wipe every translation.
+    _fake_retranslate(monkeypatch, {})
+    await client.patch("/api/settings/import", json={
+        "translation_enabled": True, "interpreter_base_url": "http://i.lan",
+    })
+    resp = await client.post("/api/settings/translation/retranslate")
+    assert resp.status_code == 400
+
+
+@pytest.mark.asyncio
+async def test_translation_retranslate_artist_scope(client, monkeypatch):
+    sink = {}
+    _fake_retranslate(monkeypatch, sink)
+    await client.patch("/api/settings/import", json={
+        "translation_enabled": True, "interpreter_base_url": "http://i.lan",
+    })
+    resp = await client.post(
+        "/api/settings/translation/retranslate", json={"artist_id": 7})
+    assert resp.status_code == 202
+    assert (await resp.get_json())["celery_task_id"] == "r1"
+    assert sink["artist_ids"] == [7]
+
+
+@pytest.mark.asyncio
+async def test_translation_retranslate_all_scope(client, monkeypatch):
+    sink = {}
+    _fake_retranslate(monkeypatch, sink)
+    await client.patch("/api/settings/import", json={
+        "translation_enabled": True, "interpreter_base_url": "http://i.lan",
+    })
+    resp = await client.post(
+        "/api/settings/translation/retranslate", json={"all": True})
+    assert resp.status_code == 202
+    assert sink["artist_ids"] is None
+
+
+@pytest.mark.asyncio
+async def test_translation_retranslate_bad_artist_id(client):
+    resp = await client.post(
+        "/api/settings/translation/retranslate", json={"artist_id": "abc"})
+    assert resp.status_code == 400
 
 
 @pytest.mark.asyncio

tests/test_api_suggestions.py

@@ -52,6 +52,7 @@ async def test_get_suggestions(client, db):
     general = body["by_category"].get("general", [])
     s2 = next(x for x in general if x["canonical_tag_id"] == tag.id)
     assert s2["source"] == "head"
+    assert s2["above_threshold"] is True   # ~0.73 clears the 0.5 suggest cut
 
 
 @pytest.mark.asyncio
@@ -114,12 +115,3 @@ async def test_undismiss_reverses_rejection(client, db):
         f"/api/images/{img.id}/suggestions/undismiss", json={"tag_id": tag.id}
     )
     assert resp2.status_code == 204
-
-
-@pytest.mark.asyncio
-async def test_alias_requires_fields(client, db):
-    img = await _img(db)
-    resp = await client.post(
-        f"/api/images/{img.id}/suggestions/alias", json={"alias_string": "x"}
-    )
-    assert resp.status_code == 400

tests/test_gallery_similar.py

@@ -98,6 +98,30 @@ async def test_similar_excludes_presentation_tagged_images(db):
     assert {i.id for i in res_from_banner} == {src.id, wipped.id, plain.id}
 
 
+@pytest.mark.asyncio
+async def test_similar_exclude_wip_drops_wip_neighbors(db):
+    """Explore passes exclude_wip=True to also hide work-in-progress from the
+    rabbit-hole (banner is always hidden; wip only when asked)."""
+    src = await _img(db, 1, _vec(1, 0))
+    bannered = await _img(db, 2, _vec(1, 0.02))   # always hidden
+    wipped = await _img(db, 3, _vec(1, 0.3))      # hidden only with exclude_wip
+    plain = await _img(db, 4, _vec(1, 0.6))
+    banner_tag = (await db.execute(select(Tag).where(
+        Tag.is_system.is_(True), Tag.name == "banner"))).scalar_one()
+    wip_tag = (await db.execute(select(Tag).where(
+        Tag.is_system.is_(True), Tag.name == "wip"))).scalar_one()
+    await db.execute(image_tag.insert().values(
+        image_record_id=bannered.id, tag_id=banner_tag.id, source="manual"))
+    await db.execute(image_tag.insert().values(
+        image_record_id=wipped.id, tag_id=wip_tag.id, source="manual"))
+    svc = GalleryService(db)
+    res = await svc.similar(src.id, limit=10, exclude_wip=True)
+    assert [i.id for i in res] == [plain.id]        # wip + banner both gone
+    # Default (gallery "similar" button) still keeps wip (#1274).
+    res_default = await svc.similar(src.id, limit=10)
+    assert wipped.id in {i.id for i in res_default}
+
+
 @pytest.mark.asyncio
 async def test_similar_composes_with_tag_filter(db):
     src = await _img(db, 1, _vec(1, 0))

tests/test_interpreter_client.py

@@ -6,9 +6,10 @@ from backend.app.services import interpreter_client as ic
 
 
 class _Resp:
-    def __init__(self, status_code=200, payload=None):
+    def __init__(self, status_code=200, payload=None, headers=None):
         self.status_code = status_code
         self._payload = payload or {}
+        self.headers = headers or {}
 
     def json(self):
         return self._payload
@@ -29,18 +30,22 @@ def test_translate_maps_batch_in_order(monkeypatch):
             "interpreter": {"engine": "llm", "engine_version": "ollama:x:12b"},
         })
 
-    monkeypatch.setattr(ic.requests, "post", fake_post)
+    monkeypatch.setattr(ic.session, "post", fake_post)
     out = ic.translate(["ねこが可愛い", "金髪ギャル！"], base_url="http://i.lan")
     assert out["translations"] == ["The cat is cute", "Blonde gal!"]
     assert out["detected_lang"] == "ja"
+    assert out["detected_confidence"] == 0.98   # surfaced for the detection guard
     assert out["engine_version"] == "ollama:x:12b"
     assert captured["json"]["q"] == ["ねこが可愛い", "金髪ギャル！"]
     assert captured["json"]["target"] == "en"
+    # Source MUST stay "auto": an explicit source makes Interpreter skip detection
+    # and report confidence 1.0, which would defeat the acceptance gate.
+    assert captured["json"]["source"] == "auto"
 
 
 def test_translate_passthrough_unchanged(monkeypatch):
     # Already-English items come back unchanged in their slot (engine "none").
-    monkeypatch.setattr(ic.requests, "post", lambda *a, **k: _Resp(200, {
+    monkeypatch.setattr(ic.session, "post", lambda *a, **k: _Resp(200, {
         "translatedText": ["already english"],
         "detectedLanguage": {"language": "en"},
         "interpreter": {"engine": "none", "engine_version": None},
@@ -52,7 +57,7 @@ def test_translate_passthrough_unchanged(monkeypatch):
 
 
 def test_translate_503_raises_unavailable(monkeypatch):
-    monkeypatch.setattr(ic.requests, "post", lambda *a, **k: _Resp(503, {}))
+    monkeypatch.setattr(ic.session, "post", lambda *a, **k: _Resp(503, {}))
     with pytest.raises(ic.InterpreterUnavailable):
         ic.translate(["x"], base_url="http://i.lan")
 
@@ -61,14 +66,46 @@ def test_translate_connection_error_raises_unavailable(monkeypatch):
     def boom(*a, **k):
         raise ic.requests.ConnectionError("refused")
 
-    monkeypatch.setattr(ic.requests, "post", boom)
+    monkeypatch.setattr(ic.session, "post", boom)
     with pytest.raises(ic.InterpreterUnavailable):
         ic.translate(["x"], base_url="http://i.lan")
 
 
+@pytest.mark.parametrize("code", [429, 500, 502, 503, 504])
+def test_translate_429_and_5xx_raise_unavailable(monkeypatch, code):
+    # A gracefully-draining service behind a reverse proxy returns 429/502/503/504
+    # — all mean "retry later", not an opaque error.
+    monkeypatch.setattr(ic.session, "post", lambda *a, **k: _Resp(code, {}))
+    with pytest.raises(ic.InterpreterUnavailable) as ei:
+        ic.translate(["x"], base_url="http://i.lan")
+    assert ei.value.retry_after is None
+
+
+def test_translate_honours_retry_after_seconds(monkeypatch):
+    monkeypatch.setattr(
+        ic.session, "post",
+        lambda *a, **k: _Resp(503, {}, headers={"Retry-After": "42"}),
+    )
+    with pytest.raises(ic.InterpreterUnavailable) as ei:
+        ic.translate(["x"], base_url="http://i.lan")
+    assert ei.value.retry_after == 42
+
+
+def test_translate_retry_after_past_http_date_clamps_to_zero(monkeypatch):
+    # HTTP-date form; a past date → non-negative clamp to 0 (deterministic).
+    monkeypatch.setattr(
+        ic.session, "post",
+        lambda *a, **k: _Resp(
+            503, {}, headers={"Retry-After": "Wed, 21 Oct 2015 07:28:00 GMT"}),
+    )
+    with pytest.raises(ic.InterpreterUnavailable) as ei:
+        ic.translate(["x"], base_url="http://i.lan")
+    assert ei.value.retry_after == 0.0
+
+
 def test_translate_400_raises_bad_request(monkeypatch):
     monkeypatch.setattr(
-        ic.requests, "post", lambda *a, **k: _Resp(400, {"error": "bad target"})
+        ic.session, "post", lambda *a, **k: _Resp(400, {"error": "bad target"})
     )
     with pytest.raises(ic.InterpreterBadRequest):
         ic.translate(["x"], base_url="http://i.lan")
@@ -78,20 +115,20 @@ def test_translate_empty_is_noop(monkeypatch):
     def boom(*a, **k):
         raise AssertionError("should not call the service for an empty batch")
 
-    monkeypatch.setattr(ic.requests, "post", boom)
+    monkeypatch.setattr(ic.session, "post", boom)
     assert ic.translate([], base_url="http://i.lan")["translations"] == []
 
 
 def test_health_true_when_llm_up(monkeypatch):
     monkeypatch.setattr(
-        ic.requests, "get", lambda *a, **k: _Resp(200, {"engines": {"llm": True}})
+        ic.session, "get", lambda *a, **k: _Resp(200, {"engines": {"llm": True}})
     )
     assert ic.health("http://i.lan") is True
 
 
 def test_health_false_when_engine_down(monkeypatch):
     monkeypatch.setattr(
-        ic.requests, "get", lambda *a, **k: _Resp(200, {"engines": {"llm": False}})
+        ic.session, "get", lambda *a, **k: _Resp(200, {"engines": {"llm": False}})
     )
     assert ic.health("http://i.lan") is False
 
@@ -100,7 +137,7 @@ def test_health_false_on_error(monkeypatch):
     def boom(*a, **k):
         raise ic.requests.ConnectionError("refused")
 
-    monkeypatch.setattr(ic.requests, "get", boom)
+    monkeypatch.setattr(ic.session, "get", boom)
     assert ic.health("http://i.lan") is False
 
 

tests/test_maintenance.py

@@ -26,6 +26,28 @@ def _make_batch(session) -> int:
     return batch.id
 
 
+def test_cleanup_orphaned_temp_files_removes_stale_only(tmp_path, monkeypatch):
+    import os
+
+    from backend.app.tasks import maintenance as m
+
+    monkeypatch.setattr(m, "IMAGES_ROOT", tmp_path)
+    stale = tmp_path / "artist" / "img.jpg.part"      # killed download → orphan
+    stale.parent.mkdir(parents=True)
+    stale.write_bytes(b"x")
+    old = datetime.now(UTC).timestamp() - 8 * 3600     # older than the 6h guard
+    os.utime(stale, (old, old))
+    fresh = tmp_path / "in_progress.jpg.partial"       # active download → keep
+    fresh.write_bytes(b"x")
+    keep = tmp_path / "real.jpg"                        # a real image → keep
+    keep.write_bytes(b"x")
+
+    assert m.cleanup_orphaned_temp_files() == 1
+    assert not stale.exists()
+    assert fresh.exists()
+    assert keep.exists()
+
+
 def test_recover_interrupted_only_old(db_sync, monkeypatch):
     batch_id = _make_batch(db_sync)
     now = datetime.now(UTC)

tests/test_ml_suggestions.py

@@ -62,9 +62,8 @@ async def test_head_suggestion_surfaces_for_matching_image(db):
     s = general[0]
     assert s.canonical_tag_id == tag.id
     assert s.source == "head"
-    assert s.creates_new_tag is False
-    assert s.via_alias is False and s.raw_name is None
     assert s.score > 0.5
+    assert s.above_threshold is True   # ~0.73 clears the 0.5 suggest cut
 
 
 @pytest.mark.asyncio
@@ -109,7 +108,10 @@ async def test_threshold_override_surfaces_below_cut(db):
     svc = SuggestionService(db)
     assert svc and not (await svc.for_image(img.id)).by_category.get("general")
     flooded = await svc.for_image(img.id, threshold_override=0.0)
-    assert any(s.canonical_tag_id == tag.id for s in flooded.by_category["general"])
+    s = next(s for s in flooded.by_category["general"] if s.canonical_tag_id == tag.id)
+    # Included by the floor, but flagged below its own cut (0.5 < 0.6) — this is
+    # what lets the dropdown show it while the panel hides it.
+    assert s.above_threshold is False
 
 
 @pytest.mark.asyncio
@@ -281,6 +283,7 @@ async def test_ccip_character_surfaces_in_rail(db):
         if c.canonical_tag_id == raven.id
     )
     assert m.source == "ccip"
+    assert m.above_threshold is True   # CCIP only returns matches above its cut
 
 
 # --- #1206 Step 4: on-demand grounding for ALREADY-APPLIED tag chips ---------

tests/test_translate_posts.py

@@ -4,7 +4,12 @@ import pytest
 from sqlalchemy import select
 
 from backend.app.models import Artist, ImportSettings, Post
-from backend.app.tasks.translation import translate_posts
+from backend.app.services import interpreter_client as ic
+from backend.app.tasks.translation import (
+    _RETRANSLATE_COUNTDOWN,
+    retranslate_posts,
+    translate_posts,
+)
 
 pytestmark = pytest.mark.integration
 
@@ -28,8 +33,8 @@ def _sf(db_sync):
     return _SM()
 
 
-def _artist(db):
+def _artist(db, name="A", slug="a"):
-    a = Artist(name="A", slug="a")
+    a = Artist(name=name, slug=slug)
     db.add(a)
     db.flush()
     return a
@@ -45,6 +50,15 @@ def _post(db, artist_id, *, title=None, desc=None, ext="p1"):
     return p
 
 
+def _mark_translated(p, *, lang="ja", ver="v1"):
+    """Simulate a prior (old-model) translation so retranslate has something to
+    reset."""
+    p.post_title_translated = "OLD"
+    p.description_translated = "OLD"
+    p.translated_source_lang = lang
+    p.translation_engine_version = ver
+
+
 def _enable(db, url="http://i.lan"):
     cfg = db.execute(
         select(ImportSettings).where(ImportSettings.id == 1)
@@ -105,6 +119,35 @@ def test_translate_posts_passthrough_english_marks_handled(db_sync, monkeypatch)
     assert p.post_title_translated is None       # ...but nothing to show
 
 
+def test_translate_posts_mixed_language_translates_nonenglish_field(db_sync, monkeypatch):
+    # English title + Japanese description: the description is still translated
+    # even though the title is already English (per-field detection, not the old
+    # aggregate first-item bail). Source lang comes from the translated field.
+    _patch(monkeypatch, db_sync)
+    monkeypatch.setattr("backend.app.tasks.translation.ic.health", lambda *a, **k: True)
+
+    def fake_translate(texts, **k):
+        t = texts[0]
+        if t.isascii():   # already English → passthrough
+            return {"translations": [t], "detected_lang": "en",
+                    "engine": "none", "engine_version": None}
+        return {"translations": [f"EN:{t}"], "detected_lang": "ja",
+                "engine": "llm", "engine_version": "v9"}
+
+    monkeypatch.setattr("backend.app.tasks.translation.ic.translate", fake_translate)
+    a = _artist(db_sync)
+    p = _post(db_sync, a.id, title="hello", desc="ねこ")
+    _enable(db_sync)
+    db_sync.commit()
+
+    assert "translated=1" in translate_posts()
+    db_sync.refresh(p)
+    assert p.post_title_translated is None          # English title untouched
+    assert p.description_translated == "EN:ねこ"      # Japanese desc translated
+    assert p.translated_source_lang == "ja"          # from the translated field
+    assert p.translation_engine_version == "v9"
+
+
 def test_translate_posts_disabled_is_noop(db_sync, monkeypatch):
     _patch(monkeypatch, db_sync)
     a = _artist(db_sync)
@@ -125,3 +168,364 @@ def test_translate_posts_service_down_leaves_untranslated(db_sync, monkeypatch):
     assert translate_posts() == "interpreter unavailable"
     db_sync.refresh(p)
     assert p.translated_source_lang is None       # will retry next run
+
+
+def test_translate_posts_interrupt_reenqueues_after_backoff(db_sync, monkeypatch):
+    # A drain mid-sweep (health passed, translate 503s w/ Retry-After) re-enqueues
+    # the daily sweep after the backoff instead of waiting for tomorrow's beat.
+    _patch(monkeypatch, db_sync)
+    monkeypatch.setattr("backend.app.tasks.translation.ic.health", lambda *a, **k: True)
+
+    def _drain(texts, **k):
+        raise ic.InterpreterUnavailable("draining", retry_after=30)
+
+    monkeypatch.setattr("backend.app.tasks.translation.ic.translate", _drain)
+    calls = []
+    monkeypatch.setattr(
+        "backend.app.tasks.translation.translate_posts.apply_async",
+        lambda *a, **k: calls.append((a, k)),
+    )
+    a = _artist(db_sync)
+    _post(db_sync, a.id, title="ねこ", ext="p1")
+    _enable(db_sync)
+    db_sync.commit()
+
+    assert "interrupted" in translate_posts()
+    assert len(calls) == 1
+    assert calls[0][1]["countdown"] == 30
+
+
+def _mock_ok(monkeypatch):
+    monkeypatch.setattr("backend.app.tasks.translation.ic.health", lambda *a, **k: True)
+    monkeypatch.setattr(
+        "backend.app.tasks.translation.ic.translate",
+        lambda texts, **k: {
+            "translations": [f"EN:{t}" for t in texts],
+            "detected_lang": "ja", "engine": "llm", "engine_version": "v1",
+        },
+    )
+
+
+def test_translate_posts_drain_chases_tail(db_sync, monkeypatch):
+    # "Translate now" (drain=True): with the chunk capped at 1 and 2 untranslated
+    # posts, the first chunk re-enqueues itself — drain preserved — to finish the
+    # backlog rather than waiting for the next beat.
+    _patch(monkeypatch, db_sync)
+    _mock_ok(monkeypatch)
+    monkeypatch.setattr("backend.app.tasks.translation._MAX_POSTS_PER_RUN", 1)
+    calls = []
+    monkeypatch.setattr(
+        "backend.app.tasks.translation.translate_posts.apply_async",
+        lambda *a, **k: calls.append((a, k)),
+    )
+    a = _artist(db_sync)
+    _post(db_sync, a.id, title="ねこ", ext="p1")
+    _post(db_sync, a.id, title="いぬ", ext="p2")
+    _enable(db_sync)
+    db_sync.commit()
+
+    translate_posts(drain=True)
+    assert len(calls) == 1                       # one re-enqueue for the tail
+    args, kw = calls[0]
+    assert args[1] == {"drain": True}            # drain flag carried forward
+    assert kw["countdown"] == _RETRANSLATE_COUNTDOWN
+
+
+def test_translate_posts_beat_single_chunk_no_tail_chase(db_sync, monkeypatch):
+    # The periodic beat (drain defaults False) does exactly ONE chunk and never
+    # re-enqueues — the 8h cadence drives the rest.
+    _patch(monkeypatch, db_sync)
+    _mock_ok(monkeypatch)
+    monkeypatch.setattr("backend.app.tasks.translation._MAX_POSTS_PER_RUN", 1)
+    calls = []
+    monkeypatch.setattr(
+        "backend.app.tasks.translation.translate_posts.apply_async",
+        lambda *a, **k: calls.append((a, k)),
+    )
+    a = _artist(db_sync)
+    _post(db_sync, a.id, title="ねこ", ext="p1")
+    _post(db_sync, a.id, title="いぬ", ext="p2")
+    _enable(db_sync)
+    db_sync.commit()
+
+    translate_posts()                            # drain=False
+    assert calls == []                           # no self-re-enqueue
+
+
+def _mock_lang(monkeypatch, *, lang, conf, ver="v1"):
+    # Interpreter is up and returns a translation with the given detected language
+    # + confidence, so the acceptance gate can be exercised end-to-end.
+    monkeypatch.setattr("backend.app.tasks.translation.ic.health", lambda *a, **k: True)
+    monkeypatch.setattr(
+        "backend.app.tasks.translation.ic.translate",
+        lambda texts, **k: {
+            "translations": [f"EN:{t}" for t in texts],
+            "detected_lang": lang, "detected_confidence": conf,
+            "engine": "llm", "engine_version": ver,
+        },
+    )
+
+
+def test_translate_posts_rejects_low_confidence_latin(db_sync, monkeypatch):
+    # A short English title Interpreter mis-labels as German with LOW confidence is
+    # NOT stored — the original is kept, and the post is marked handled (source ==
+    # target) so the sweep won't revisit it.
+    _patch(monkeypatch, db_sync)
+    _mock_lang(monkeypatch, lang="de", conf=0.42)
+    a = _artist(db_sync)
+    p = _post(db_sync, a.id, title="Nami Heroines - WIP Part 1", ext="p1")
+    _enable(db_sync)
+    db_sync.commit()
+
+    translate_posts()
+    db_sync.refresh(p)
+    assert p.post_title_translated is None            # mis-flag rejected, kept
+    assert p.translated_source_lang == "en"           # marked handled (== target)
+
+
+def test_translate_posts_accepts_high_confidence_latin(db_sync, monkeypatch):
+    # A confident latin-script detection (real German) clears the floor → stored.
+    _patch(monkeypatch, db_sync)
+    _mock_lang(monkeypatch, lang="de", conf=0.98)
+    a = _artist(db_sync)
+    p = _post(db_sync, a.id, title="Das Mädchen mit dem Perlenohrring", ext="p2")
+    _enable(db_sync)
+    db_sync.commit()
+
+    translate_posts()
+    db_sync.refresh(p)
+    assert p.post_title_translated == "EN:Das Mädchen mit dem Perlenohrring"
+    assert p.translated_source_lang == "de"
+
+
+def test_translate_posts_accepts_low_confidence_cjk(db_sync, monkeypatch):
+    # CJK is script-detected and trusted regardless of the reported number — a
+    # zh 0.75 (e.g. pure-kanji Japanese) is still translated, not rejected.
+    _patch(monkeypatch, db_sync)
+    _mock_lang(monkeypatch, lang="zh", conf=0.75)
+    a = _artist(db_sync)
+    p = _post(db_sync, a.id, title="猫が可愛い", ext="p3")
+    _enable(db_sync)
+    db_sync.commit()
+
+    translate_posts()
+    db_sync.refresh(p)
+    assert p.post_title_translated == "EN:猫が可愛い"
+    assert p.translated_source_lang == "zh"
+
+
+def test_translate_posts_force_override_translates_below_floor(db_sync, monkeypatch):
+    # override='force' stores the translation even below the confidence floor —
+    # rescuing a legitimately-foreign title the gate would otherwise skip.
+    _patch(monkeypatch, db_sync)
+    _mock_lang(monkeypatch, lang="de", conf=0.42)     # below the 0.90 default floor
+    a = _artist(db_sync)
+    p = _post(db_sync, a.id, title="Kurz", ext="p1")
+    p.translation_override = "force"
+    _enable(db_sync)
+    db_sync.commit()
+
+    translate_posts()
+    db_sync.refresh(p)
+    assert p.post_title_translated == "EN:Kurz"        # forced through despite 0.42
+    assert p.translated_source_lang == "de"
+
+
+def test_translate_posts_original_override_keeps_original(db_sync, monkeypatch):
+    # override='original' never translates — even a confident (0.98) detection is
+    # kept as the original. The sweep marks it handled (== target) and stores
+    # nothing; Interpreter isn't consulted for the decision.
+    _patch(monkeypatch, db_sync)
+    _mock_lang(monkeypatch, lang="de", conf=0.98)     # would be accepted under auto
+    a = _artist(db_sync)
+    p = _post(db_sync, a.id, title="Das Mädchen", ext="p1")
+    p.translation_override = "original"
+    _enable(db_sync)
+    db_sync.commit()
+
+    translate_posts()
+    db_sync.refresh(p)
+    assert p.post_title_translated is None             # kept original
+    assert p.translated_source_lang == "en"            # marked handled
+
+
+def _mock_new_model(monkeypatch, *, ver="v2"):
+    """Interpreter is up and translates with a NEW engine version."""
+    monkeypatch.setattr("backend.app.tasks.translation.ic.health", lambda *a, **k: True)
+    monkeypatch.setattr(
+        "backend.app.tasks.translation.ic.translate",
+        lambda texts, **k: {
+            "translations": [f"NEW:{t}" for t in texts],
+            "detected_lang": "ja", "engine": "llm", "engine_version": ver,
+        },
+    )
+
+
+def test_retranslate_resets_and_reruns(db_sync, monkeypatch):
+    # A post translated by the old model gets cleared + re-run through the new
+    # one (new engine_version proves the reset happened, not a cache short-circuit).
+    _patch(monkeypatch, db_sync)
+    _mock_new_model(monkeypatch)
+    a = _artist(db_sync)
+    p = _post(db_sync, a.id, title="ねこ", desc="かわいい")
+    _mark_translated(p)
+    _enable(db_sync)
+    db_sync.commit()
+
+    retranslate_posts(artist_ids=[a.id])
+    db_sync.refresh(p)
+    assert p.post_title_translated == "NEW:ねこ"
+    assert p.description_translated == "NEW:かわいい"
+    assert p.translation_engine_version == "v2"
+
+
+def test_retranslate_leaves_keep_original_posts(db_sync, monkeypatch):
+    # A 'keep original' post survives a Re-translate-all: _reset_translations skips
+    # override='original', so it stays handled + untranslated instead of being
+    # re-run (which would re-introduce the mis-flag the operator killed).
+    _patch(monkeypatch, db_sync)
+    _mock_new_model(monkeypatch)
+    a = _artist(db_sync)
+    p = _post(db_sync, a.id, title="ねこ", ext="p1")
+    p.translation_override = "original"
+    p.translated_source_lang = "en"       # handled by a prior 'keep original' apply
+    _enable(db_sync)
+    db_sync.commit()
+
+    retranslate_posts(artist_ids=[a.id])
+    db_sync.refresh(p)
+    assert p.translated_source_lang == "en"     # not reset
+    assert p.post_title_translated is None       # not re-translated
+
+
+def test_retranslate_artist_scope_leaves_others(db_sync, monkeypatch):
+    # Scoping to one artist must not touch another artist's translations.
+    _patch(monkeypatch, db_sync)
+    _mock_new_model(monkeypatch)
+    a1 = _artist(db_sync)
+    a2 = _artist(db_sync, name="B", slug="b")
+    p1 = _post(db_sync, a1.id, title="ねこ", ext="p1")
+    p2 = _post(db_sync, a2.id, title="いぬ", ext="p2")
+    _mark_translated(p1)
+    _mark_translated(p2)
+    _enable(db_sync)
+    db_sync.commit()
+
+    retranslate_posts(artist_ids=[a1.id])
+    db_sync.refresh(p1)
+    db_sync.refresh(p2)
+    assert p1.post_title_translated == "NEW:ねこ"     # re-run
+    assert p1.translation_engine_version == "v2"
+    assert p2.post_title_translated == "OLD"          # untouched
+    assert p2.translation_engine_version == "v1"
+
+
+def test_retranslate_runs_until_done(db_sync, monkeypatch):
+    # With the chunk capped at 1 and 2 posts to redo, the first chunk re-enqueues
+    # itself (with _reset_done=True so it doesn't wipe the fresh work) to finish.
+    _patch(monkeypatch, db_sync)
+    _mock_new_model(monkeypatch)
+    monkeypatch.setattr("backend.app.tasks.translation._MAX_POSTS_PER_RUN", 1)
+    calls = []
+    monkeypatch.setattr(
+        "backend.app.tasks.translation.retranslate_posts.apply_async",
+        lambda *a, **k: calls.append((a, k)),
+    )
+    a = _artist(db_sync)
+    p1 = _post(db_sync, a.id, title="ねこ", ext="p1")
+    p2 = _post(db_sync, a.id, title="いぬ", ext="p2")
+    _mark_translated(p1)
+    _mark_translated(p2)
+    _enable(db_sync)
+    db_sync.commit()
+
+    retranslate_posts(artist_ids=[a.id])
+    assert len(calls) == 1                             # one re-enqueue for the tail
+    args, _kw = calls[0]
+    assert args[1]["_reset_done"] is True
+    assert args[1]["artist_ids"] == [a.id]
+
+
+def test_retranslate_disabled_does_not_reset(db_sync, monkeypatch):
+    # Never wipe translations we can't rebuild — a disabled service leaves them.
+    _patch(monkeypatch, db_sync)
+    a = _artist(db_sync)
+    p = _post(db_sync, a.id, title="ねこ", ext="p1")
+    _mark_translated(p)
+    db_sync.commit()   # translation_enabled defaults False
+    assert retranslate_posts(artist_ids=[a.id]) == "disabled"
+    db_sync.refresh(p)
+    assert p.translated_source_lang == "ja"
+    assert p.post_title_translated == "OLD"
+
+
+def test_retranslate_unhealthy_does_not_reset(db_sync, monkeypatch):
+    _patch(monkeypatch, db_sync)
+    monkeypatch.setattr("backend.app.tasks.translation.ic.health", lambda *a, **k: False)
+    a = _artist(db_sync)
+    p = _post(db_sync, a.id, title="ねこ", ext="p1")
+    _mark_translated(p)
+    _enable(db_sync)
+    db_sync.commit()
+    assert retranslate_posts(artist_ids=[a.id]) == "interpreter unavailable"
+    db_sync.refresh(p)
+    assert p.translated_source_lang == "ja"
+    assert p.post_title_translated == "OLD"
+
+
+def test_retranslate_interrupt_resumes_after_retry_after(db_sync, monkeypatch):
+    # Interpreter drains mid-chunk (health passed, then translate 503s with a
+    # Retry-After): the bulk re-translate re-enqueues itself after the hinted
+    # backoff, with _reset_done=True so it never re-wipes fresh work — instead of
+    # stalling until the daily beat.
+    _patch(monkeypatch, db_sync)
+    monkeypatch.setattr("backend.app.tasks.translation.ic.health", lambda *a, **k: True)
+
+    def _drain(texts, **k):
+        raise ic.InterpreterUnavailable("draining", retry_after=42)
+
+    monkeypatch.setattr("backend.app.tasks.translation.ic.translate", _drain)
+    calls = []
+    monkeypatch.setattr(
+        "backend.app.tasks.translation.retranslate_posts.apply_async",
+        lambda *a, **k: calls.append((a, k)),
+    )
+    a = _artist(db_sync)
+    p = _post(db_sync, a.id, title="ねこ", ext="p1")
+    _mark_translated(p)
+    _enable(db_sync)
+    db_sync.commit()
+
+    assert "interrupted" in retranslate_posts(artist_ids=[a.id])
+    assert len(calls) == 1                             # resume re-enqueued
+    args, kw = calls[0]
+    assert args[1]["_reset_done"] is True
+    assert args[1]["artist_ids"] == [a.id]
+    assert kw["countdown"] == 42                       # honoured the Retry-After
+    db_sync.refresh(p)
+    assert p.translated_source_lang is None            # reset happened, not re-run
+
+
+def test_retranslate_interrupt_default_backoff_without_hint(db_sync, monkeypatch):
+    # No Retry-After header → fall back to the default backoff (60s).
+    _patch(monkeypatch, db_sync)
+    monkeypatch.setattr("backend.app.tasks.translation.ic.health", lambda *a, **k: True)
+
+    def _drain(texts, **k):
+        raise ic.InterpreterUnavailable("draining")
+
+    monkeypatch.setattr("backend.app.tasks.translation.ic.translate", _drain)
+    calls = []
+    monkeypatch.setattr(
+        "backend.app.tasks.translation.retranslate_posts.apply_async",
+        lambda *a, **k: calls.append((a, k)),
+    )
+    a = _artist(db_sync)
+    p = _post(db_sync, a.id, title="ねこ", ext="p1")
+    _mark_translated(p)
+    _enable(db_sync)
+    db_sync.commit()
+
+    retranslate_posts(artist_ids=[a.id])
+    assert len(calls) == 1
+    assert calls[0][1]["countdown"] == 60

tests/test_translation_gate.py

@@ -0,0 +1,48 @@
+"""Translation acceptance gate (#1376, #155) — pure unit tests for ``_accept``,
+which decides whether curator stores Interpreter's translation or keeps the
+original. Curator does no detection of its own; it only thresholds Interpreter's
+reported detected language + confidence against the operator-tunable floor
+(Scribe rule 133). No DB, no network."""
+from backend.app.tasks.translation import _DEFAULT_MIN_LATIN_CONFIDENCE, _accept
+
+
+def test_accept_trusts_cjk_regardless_of_confidence_or_floor():
+    # ja/ko/zh are script-detected — accepted even at a low reported number and
+    # even against a high floor (pure-kanji Japanese can come back labelled zh
+    # ~0.75, still translated).
+    assert _accept("ja", None) is True
+    assert _accept("ja", 0.10, 0.99) is True
+    assert _accept("ko", 0.99) is True
+    assert _accept("zh", 0.75) is True
+    assert _accept("zh-CN", 0.20) is True      # region suffix is still CJK
+
+
+def test_accept_default_floor_is_strict():
+    # Default floor is 0.90 (#155): the ~0.86 band — where genuine German AND
+    # mis-flagged short English collide — is now REJECTED (the whole point of the
+    # stricter default). Genuine high-confidence non-English (~1.0) still passes.
+    assert _accept("de", 0.98) is True
+    assert _accept("de", 0.86) is False            # the collision band, now cut
+    assert _accept("de", _DEFAULT_MIN_LATIN_CONFIDENCE) is True          # at floor
+    assert _accept("de", _DEFAULT_MIN_LATIN_CONFIDENCE - 0.01) is False
+    assert _accept("fr", 0.40) is False            # short mis-flag
+
+
+def test_accept_honors_an_explicit_floor():
+    # The floor is a parameter now (fed from ImportSettings). A looser floor keeps
+    # the 0.86 band; a stricter one rejects even a fairly confident detection.
+    assert _accept("de", 0.86, 0.80) is True
+    assert _accept("de", 0.86, 0.95) is False
+    assert _accept("de", 0.96, 0.95) is True
+
+
+def test_accept_is_case_insensitive():
+    assert _accept("JA", None) is True
+    assert _accept("DE", 0.40) is False
+
+
+def test_accept_missing_confidence_fails_open():
+    # No confidence reported → don't silently drop a translation.
+    assert _accept("de", None) is True
+    assert _accept("", None) is True
+    assert _accept("de", None, 0.99) is True       # fail-open beats a high floor