Assess and fix unresolved CodeRabbit review comments on PR #57 after rebasing tokenizer-updates. Scope includes manual clipboard SentenceAudio guard, tokenizer standalone particle blacklist, AniList guessit fallback confidence, startup gate duplicate auto-start, and small regression-test hardening where applicable.
Acceptance Criteria
#1 Each unresolved CodeRabbit comment is either fixed or explicitly assessed as not applicable against current code.
#2 Regression tests cover behavior changes where practical.
#3 Relevant focused tests and typecheck pass.
Implementation Notes
Fixed all verified actionable CodeRabbit comments from PR #57: manual clipboard updates no longer fall back to ExpressionAudio when SentenceAudio is absent, connective particle phrases no longer suppress lexical verb readings like 立って, guessit output only borrows parser season/episode from non-low-confidence parses, duplicate auto-start no longer releases an active pause-until-ready gate, JLPT CSS tests block text-decoration shorthand underlines, post-watch update rejection logging is covered, and duplicate quit-on-disconnect predicate code is shared.
Verification: bun test src/anki-integration/card-creation-manual-update.test.ts src/core/services/tokenizer/annotation-stage.test.ts src/core/services/anilist/anilist-updater.test.ts src/main/runtime/mpv-main-event-actions.test.ts src/renderer/subtitle-render.test.ts; lua scripts/test-plugin-start-gate.lua; bun run typecheck; bun run test:fast.
