- guard override-block recursion in parseOverrideBlock at 8 levels; pathologically nested \t(...) tags no longer blow the call stack
- extract duplicate/animation-burst cue collapsing out of subtitle-cue-parser.ts into subtitle-cue-dedup.ts
- add regression tests for deep \t nesting, SRT/VTT brace stripping, and ASS content sniffed behind a lying .srt extension
- Drop vector drawing runs (\p1...\p0) and collapse duplicate/animation-burst cue events (karaoke frames, layered shadow copies) so typeset ASS scripts stop flooding the subtitle sidebar
- Add ass-text.ts to decode ASS text once at ingestion, mirroring mpv's ass_to_plaintext (\N/\n/\h handling, unclosed braces, no \{ \} \\ escapes)
- Renderer, timing tracker, tokenizer, and tokenization cache now consume the already-decoded plain text instead of each re-deriving it, fixing mismatched cache keys for the same authored line
sudacode
