fix: index AniList character aliases in dictionary

backlog/tasks/task-101 - Index-AniList-character-alternative-names-in-the-character-dictionary.md

@@ -0,0 +1,39 @@
+---
+id: TASK-101
+title: Index AniList character alternative names in the character dictionary
+status: Done
+assignee: []
+created_date: '2026-03-07 00:00'
+updated_date: '2026-03-07 00:00'
+labels:
+  - dictionary
+  - anilist
+priority: high
+dependencies: []
+references:
+  - /home/sudacode/projects/japanese/SubMiner/src/main/character-dictionary-runtime.ts
+  - /home/sudacode/projects/japanese/SubMiner/src/main/character-dictionary-runtime.test.ts
+---
+
+## Description
+
+<!-- SECTION:DESCRIPTION:BEGIN -->
+Index AniList character alternative names in generated character dictionaries so aliases like Shadow resolve during subtitle lookup instead of falling through to unrelated generic dictionary entries.
+<!-- SECTION:DESCRIPTION:END -->
+
+## Acceptance Criteria
+<!-- AC:BEGIN -->
+- [x] #1 Character fetch reads AniList alternative character names needed for lookup coverage
+- [x] #2 Generated term banks include alias-derived terms for subtitle lookups like シャドウ
+- [x] #3 Regression coverage proves alternative-name indexing works end to end
+<!-- AC:END -->
+
+## Final Summary
+
+<!-- SECTION:FINAL_SUMMARY:BEGIN -->
+Character dictionary generation now requests AniList `name.alternative`, indexes those aliases as term candidates, and expands mixed aliases like `Minoru Kagenou (影野ミノル)` into usable outer/inner variants. Also extended kana alias synthesis so the AniList alias `Shadow` emits `シャドウ`, which matches the subtitle token the user hit in The Eminence in Shadow.
+
+Bumped the character-dictionary snapshot format to invalidate stale cached snapshots, and updated merged-dictionary rebuilds to refresh invalid snapshots before composing the ZIP so old cache files do not hard-fail the merge path.
+
+Verified with `bun test src/main/character-dictionary-runtime.test.ts` and `bun run tsc --noEmit`.
+<!-- SECTION:FINAL_SUMMARY:END -->