ff5a6b834d
Refactor EPUB and HTML word highlighting to use a shared, position-preserving text normalization pipeline for mapping TTS alignment offsets to DOM positions. Replace the previous fuzzy token-matching logic with a direct char→DOM map based on the canonical "audio" text form, ensuring highlights stay in sync across languages and with Unicode-aware hyphenation handling. - Add `highlight-char-map.ts` for shared normalization logic - Update normalization to handle Unicode hyphenation consistently across compute, client, and shared layers - Remove unused fuzzy token mapping and cache logic from EPUB highlighting - Update tests for new highlight mapping and normalization behavior BREAKING CHANGE: Removes legacy fuzzy token-based word highlight mapping in favor of direct char offset mapping; highlight cache and tokenization APIs are removed. |
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