- 33 hardcoded constants promoted to Settings (60 total MN_* env vars)
- YAML auto-discovery (--config not passed -> cwd/job.yaml -> packaged example)
- .env.example as single source of truth for first-run
- All 14 YAML params properly connected through runner.py -> ctx.metadata
- Fixed: translate_chunk_chars/size silently ignored
- Fixed: export_clips codecs hardcoded
- Fixed: scene_frame_skip missing from runner copy loop
- Documentation synced across all 5 files