All translations now derive strictly from the approved English master VTT,
eliminating the cue-count and timestamp drift reported by linguists
(e.g. PL AD = 11 cues vs EN AD = 17 cues).
Key changes:
- Remove video_native translation mode entirely; all languages go through
translate_vtt() which guarantees 1:1 cue alignment with EN master
- Transcreation languages now use translate_vtt(style="transcreate") —
same cue-preserving contract, culturally-adapted instructions
- Post-translation cue alignment validator added (VTTEditor.assert_cue_alignment)
- After ingestion, job moves to PENDING_QC (EN-only) instead of TRANSLATING;
translation pipeline dispatches automatically when EN QC is approved
- New POST /jobs/{id}/retranslate-language endpoint for PM/admin to fix
legacy video_native jobs on demand
- Frontend: origin badge (EN-aligned / transcreated / video-native warning),
EN-first gate banner on target-language cards, Re-translate from EN button
with confirm modal, removed translation mode selector from NewJob
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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