feat: add scientific subtitle review workflow

skills/materialsub/SKILL.md

@@ -1,6 +1,6 @@
 ---
 name: materialsub
-description: MaterialSub downloads maximum-quality videos, covers, and source subtitles from yt-dlp platforms or browser-confirmed authorized embedded HLS players; translates foreign subtitles with the active session model; creates bilingual captions; and burns captions plus an optional approved citation watermark into MP4. Use for video download, video-only or subtitle-only delivery, Chrome-authenticated download, bilingual subtitles, citation watermarks, or hard-burned caption delivery.
+description: MaterialSub downloads maximum-quality videos, covers, and source subtitles from yt-dlp platforms or browser-confirmed authorized embedded HLS players; translates foreign subtitles with the active session model; performs source-bound AI-assisted biomedical and life-science review; creates bilingual captions; and burns captions plus an optional approved citation watermark into MP4. Use for scientific video download, video-only or subtitle-only delivery, Chrome-authenticated download, bilingual subtitles, scientific translation review, citation watermarks, or hard-burned caption delivery.
 ---
 
 # MaterialSub
@@ -26,6 +26,7 @@ For an approved citation, read [citation-watermark.md](references/citation-water
 7. A job is complete only when `verify_delivery.py` exits 0 for its declared `--deliver` target; the default `full` target requires translation, render, and burn.
 8. Keep context small: never read the full subtitle manifest, all batches at once, or raw FFmpeg logs.
 9. Treat signed playlist URLs like credentials: keep them in mode-600 local resource maps, never put them in shell arguments or final responses, and clean agent-created maps after a successful ingest.
+10. For biomedical or life-science subtitles, preserve the initial translation and complete the source-bound scientific-review gate before rendering. Never describe AI review as human expert approval.
 
 ## Run
 
@@ -91,12 +92,34 @@ Repeat `next-batch` → translate → write until it returns `done:true`; it val
 
 When the target is Chinese (the default), apply the house style: replace internal `，。` pauses with spaces and omit them at cue endings; other targets keep native punctuation. Always preserve names, URLs, code, numerals, tone, and meaning. Do not merge, split, reorder, annotate, or add line breaks.
 
-Render after the queue is complete:
+Do not render immediately after the translation queue completes. Read
+[scientific-review.md](references/scientific-review.md), then run its compact
+domain-profile and review batches with the active session model:
+
+```bash
+python3 <skill-dir>/scripts/scientific_review.py next-batch \
+  --manifest "<job-dir>/subtitles/subtitle-manifest.json" \
+  --translations-dir "<job-dir>/subtitles/translation-output" \
+  --review-dir "<job-dir>/subtitles/scientific-review"
+```
+
+The first response requests a multi-label biomedical/life-science domain
+profile. Subsequent responses request bounded source-versus-translation review
+batches. Repeat until `done:true`, then run `scientific_review.py finalize`.
+This produces a separate reviewed translation set and JSON/Markdown report;
+the initial translations remain unchanged. Evidence-backed terminology or
+semantic corrections are applied, while uncertain source-caption, numeric,
+unit, drug, gene, protein, vector, strain, or model-name issues are preserved
+and flagged rather than guessed. Unresolved high-risk flags do not block the
+ordinary internal-use workflow, but must be disclosed in the final handoff.
+
+Render only the reviewed translation set and bind its exact review report:
 
 ```bash
 python3 <skill-dir>/scripts/subtitle_pipeline.py render \
   --manifest "<job-dir>/subtitles/subtitle-manifest.json" \
-  --translations-dir "<job-dir>/subtitles/translation-output" \
+  --translations-dir "<job-dir>/subtitles/scientific-review/reviewed-translations" \
+  --scientific-review-report "<job-dir>/subtitles/scientific-review/report.json" \
   --output-dir "<job-dir>/subtitles/rendered"
 ```
 
@@ -122,6 +145,10 @@ python3 <skill-dir>/scripts/verify_delivery.py "<job-dir>/download-manifest.json
 ```
 
 Exit 3 identifies the unfinished stage; continue it immediately. Report success only after exit 0 and a non-empty bilingual MP4 exists when subtitles were available.
+When scientific review ran, also deliver `subtitles/scientific-review/report.md`.
+Call it “AI-assisted biomedical and life-science review,” not expert or human
+professional review. If `unresolved_high` is nonzero, include the report's
+disclosure verbatim in the handoff.
 
 ## Preflight and failures