feat: upload audio, get a private Swedish transcript, discuss it (#33, ADR-033) (#39)

Upload a recording (audio, or video with the camera off), get a private Swedish transcript, and chat about it. - ADR-033: RLS-scoped private transcript store; ffprobe/ffmpeg intake; gateway transcription (iguana kb-whisper, berget fallback); in-process single-replica worker; chat over the transcript (local models only). - ADR-034: optional two-engine mode (pianissimo + kb-whisper) reconciled by a LOCAL model; off unless TAPIR_RECONCILE_BASE_MODEL is set. - ADR-035: real progress (phases, running/quiet/lost), phase logging, every judged spot stored, merged segments. - Hardening from four adversarial reviews: errors logged and stored as kinds never text; per-engine deadlines; converted-length check; bounded queue; client hang-ups are not errors; strict local-alias check. - Dockerfile: static ffmpeg/ffprobe 7.0.2 pinned by sha256 (#34). Built and inspected by hand; CI does not build the image on a PR, so its first CI build is this merge. Uploads stay OFF until TAPIR_UPLOADS_ENABLED is set in the deployment. Closes #33, #34, #42, #43, #44. Co-authored-by: Mathias <mthbqv@gmail.com>
2026-10-03 14:13:37 +00:00
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+-- Migration 019: how a merged transcript came about (ADR-034).
+--
+-- When two engines transcribed the same audio and a local model chose between their
+-- disagreements, this records the status, the exact counts, and a bounded list of the
+-- contested spots (changed or unsure, each with a position and both readings) so the
+-- page can say what was done and the user can check the uncertain spots against the
+-- audio. NULL means a single engine: no second opinion, and the page must not claim one.
+--
+-- It lives on the already-FORCE'd, RLS-scoped uploaded_transcripts, so the exact-set
+-- isolation test is unaffected. The contested spots hold fragments of the private
+-- transcript, which is why they are here and nowhere else.
+ALTER TABLE uploaded_transcripts ADD COLUMN reconciliation JSONB;