feat(tokenizer): use Yomitan word classes for subtitle POS filtering (#57)

* feat(tokenizer): use Yomitan word classes for subtitle POS filtering

- Carry matched headword wordClasses from termsFind into YomitanScanToken
- Map recognized Yomitan wordClasses to SubMiner coarse POS before annotation
- MeCab enrichment now fills only missing POS fields, preserving existing coarse pos1
- Exclude standalone grammar particles, して helper fragments, and single-kana surfaces from annotations
- Respect source-text punctuation gaps when counting N+1 sentence words
- Preserve known-word highlight on excluded kanji-containing tokens
- Add backlog tasks 304 (N+1 boundary bug) and 305 (wordClasses POS, done)

* fix(tokenizer): preserve annotation and enrichment behavior

* fix: restore jlpt subtitle underlines

* fix: exclude kana-only n+1 targets

* fix: refresh overlay on Hyprland fullscreen

* fix: address fullscreen and n-plus-one review notes

* fix: address CodeRabbit review comments

* fix: accept modified digits for multi-line sentence mining

* Cancel pending Linux MPV fullscreen overlay refresh bursts

- return a cancel handle from the Linux refresh burst scheduler
- clear pending refresh bursts when overlays hide or windows close
- tighten the burst test polling to wait for the async refresh

* fix: suppress N+1 for kana-only candidates and fix minSentenceWords coun

- Treat kana-only tokens with surrounding subtitle punctuation (…, ―, etc.) as kana-only so they are not promoted to N+1 targets
- Exclude unknown tokens filtered from N+1 targeting from the minSentenceWords count so filtered kana-only unknowns cannot satisfy sentence length threshold
- Add regression tests for kana-only candidate suppression and filtered-unknown padding cases

* Suppress subtitle annotations for grammar fragments

- Hide annotation metadata for auxiliary inflection and ja-nai endings
- Preserve lexical `くれる` forms and add regression coverage

* Fix kana-only N+1 tokenizer regression test

- Use a pure-kana fixture for the subtitle token N+1 case
- Update task notes for the latest CodeRabbit follow-up

* Fix managed playback exit and tokenizer grammar splits

- Ignore background stats daemons during regular app startup
- Split standalone grammar endings before applying annotations
- Clear helper-span annotations for auxiliary-only tokens

* fix: refresh current subtitle after known-word mining

* fix: suppress sigh interjection annotations

* fix: preserve jlpt underline color after lookup

* Replace grammar-ending permutations with shared matcher; preserve word a

- Extract `grammar-ending.ts` with `isStandaloneGrammarEndingText` / `isSubtitleGrammarEndingText` pattern matchers
- Replace `STANDALONE_GRAMMAR_ENDINGS` set in parser-selection-stage with shared matcher
- Replace generated phrase sets in subtitle-annotation-filter with shared matcher
- Remove stale duplicate subtitle-exclusion constants and helpers from annotation-stage
- Manual clipboard card updates now write only to the sentence audio field, leaving word/expression audio untouched

* fix: CI changelog, annotation options threading, and Jellyfin quit

- Add `type: fixed` / `area:` frontmatter to `changes/319` to pass `changelog:lint`
- Thread `TokenizerAnnotationOptions` through `stripSubtitleAnnotationMetadata` so `sourceText` is honored
- Include `jellyfinPlay` in `shouldQuitOnDisconnectWhenOverlayRuntimeInitialized` predicate
- Make mouse test `elementFromPoint` stubs coordinate-sensitive
- Make Lua test `.tmp` mkdir portable on Windows

* Preserve overlay across macOS flaps and mpv playlist changes

- keep visible overlays alive during transient macOS tracker loss
- reuse the running mpv overlay path on playlist navigation
- update regression coverage and changelog fragments

* fix: restore stats daemon deferral

* fix: keep subtitle prefetch alive after cache hits

* Fix JLPT underline color drift and AniList skipped-threshold sync

- Replace JLPT `text-decoration` underlines with `border-bottom` so Chromium selection/hover cannot repaint them to another annotation's color
- Lock JLPT underline color for combined annotation selectors (known, n+1, frequency) and character hover/selection states
- Trigger AniList post-watch check on every mpv time-position update to catch skipped completion thresholds
- Fall back to filename-parser season/episode when guessit omits them

* fix: address coderabbit feedback

* fix: sync AniList after seeked completion

* fix: preserve ordinal frequency annotations

* fix: preserve known highlighting for filtered tokens

* fix: address PR #57 CodeRabbit feedback

- Acquire AniList post-watch in-flight lock before async gating to prevent duplicate writes
- Isolate manual watched mark result from AniList post-watch callback failures
- Report known-word cache clears as mutations during immediate append when state existed
- Add regression tests for each fix

* fix: stop AniList setup reopening on Linux when keyring token exists

- Gate setup success on token persistence: `saveToken` now returns `boolean`; on failure, keeps the setup window open instead of reporting success
- Config reload passes `allowSetupPrompt: false` so playback reloads don't re-open the setup window
- Add regression test for persistence-failure path

* fix: suppress known highlights for subtitle particles

* fix: retry transient AniList safeStorage failures

* fix: hide overlay focus ring

* fix: align Hyprland fullscreen overlays

* fix: restore subtitle playback keybindings

* fix: align Hyprland overlay windows to mpv and stop pinning them

- Force-apply exact Hyprland move/resize/setprop dispatches when bounds are provided
- Stop pinning overlay windows; toggle pin off when Hyprland reports pinned=true
- Compensate stats overlay outer placement for Electron/Wayland content insets
- Make stats overlay window and page opaque so mpv cannot show through transparent insets
- Constrain stats app to h-screen with internal scroll so content covers mpv from y=0
- Lock overlay/stats window titles against page-title-updated events
- Add regression coverage for placement dispatches, inset compensation, and CSS overlay mode

* fix: retain frequency rank for honorific prefix-noun tokens

- Add `shouldAllowHonorificPrefixNounFrequency` to exempt お/ご/御 + noun merged tokens from frequency exclusion
- Add regression test for `ご機嫌` asserting rank 5484 is preserved after MeCab enrichment and annotation
- Close TASK-341

* fix: map openCharacterDictionary session action to --open-character-dict

- Add missing Lua CLI dispatch entry for openCharacterDictionary
- Add regression test for Alt+Meta+A binding and CLI flag forwarding

* fix: keep macOS overlay interactive while mpv remains active

- Overlay no longer hides or becomes click-through during tracker refreshes when mpv is the focused window
- Preserve already-visible overlay when tracker is temporarily not ready but mpv target signal is active
- Add regression tests for active-mpv tracker refresh and transient tracker-not-ready paths

* fix: address coderabbit subtitle follow-ups

* fix: resolve media detail from sessions when lifetime summary is absent

- Change `getMediaDetail` JOIN to LEFT JOIN on `imm_lifetime_media` and fall back to aggregated session metrics when no lifetime row exists
- Add filter `AND (lm.video_id IS NOT NULL OR s.session_id IS NOT NULL)` to keep results valid
- Add regression test covering the session-visible / media-detail-missing mismatch

* fix: address PR-57 CodeRabbit findings and CI failures

- use filtered word counts in media detail session token aggregation
- cancel fullscreen refresh burst on exit via updateLinuxMpvFullscreenOverlayRefreshBurst
- guard Hyprland JSON.parse in try/catch; exclude windowtitle from geometry events
- narrow focus suppression from :focus to :focus-visible
- apply JLPT lock selectors to word-name-match tokens (N1–N5)

* fix: macOS overlay z-order and Yomitan compound token known highlighting

- Release always-on-top when tracked mpv loses foreground on macOS
- Skip visible overlay blur restacking on macOS to avoid covering unrelated windows
- Prefer Yomitan internal parse tokens over fragmented scanner output for known-word decisions
- Add regression tests for both behaviors

* fix: macOS visible-overlay blur no longer invokes Windows-only blur call

- Split win32/darwin branches in handleOverlayWindowBlurred so darwin visible blur returns early without calling onWindowsVisibleOverlayBlur
- Add regression test asserting Windows callback stays inactive on macOS visible overlay blur
- Close TASK-347

backlog/tasks/task-327 - Restore-stats-daemon-deferral-when-launching-playback.md

@@ -0,0 +1,67 @@
+---
+id: TASK-327
+title: Restore stats daemon deferral when launching playback
+status: Done
+assignee:
+  - '@Codex'
+created_date: '2026-05-04 01:15'
+updated_date: '2026-05-04 01:17'
+labels:
+  - bug
+  - stats
+  - runtime
+dependencies: []
+priority: high
+---
+
+## Description
+
+<!-- SECTION:DESCRIPTION:BEGIN -->
+Launching a video while a background stats daemon is already running must not fail with stats.serverPort already in use. Normal in-app stats startup should reuse the live daemon URL instead of binding a second stats server, while preserving managed playback shutdown behavior from TASK-316.
+<!-- SECTION:DESCRIPTION:END -->
+
+## Acceptance Criteria
+<!-- AC:BEGIN -->
+- [x] #1 A live background stats daemon from another process causes in-app stats URL resolution to return the daemon URL without starting a local stats server.
+- [x] #2 Dead or stale daemon state is removed and local stats startup still works.
+- [x] #3 Managed playback shutdown behavior remains covered by existing tests.
+- [x] #4 Focused regression tests pass.
+<!-- AC:END -->
+
+## Implementation Plan
+
+<!-- SECTION:PLAN:BEGIN -->
+1. Update `src/main/runtime/stats-server-routing.test.ts` first so a live foreign daemon must return its daemon URL and skip local server startup.
+2. Run the focused routing test to confirm the regression fails red.
+3. Update `src/main/runtime/stats-server-routing.ts` to return `{ source: 'background' }` for live foreign daemon state, clear stale/self-owned state, and keep local startup fallback unchanged.
+4. Run focused stats routing tests plus managed playback tests touched by TASK-316.
+5. Update changelog and task acceptance/final notes.
+<!-- SECTION:PLAN:END -->
+
+## Implementation Notes
+
+<!-- SECTION:NOTES:BEGIN -->
+Implemented via TDD: first changed `stats-server-routing.test.ts` to require live foreign daemon deferral and observed the expected red failure. Then restored `stats-server-routing.ts` to return the daemon URL with `source: 'background'` when daemon state belongs to a live other process. Stale/dead and self-owned stale cleanup paths remain local fallback.
+
+Verification passed: `bun test src/main/runtime/stats-server-routing.test.ts`; focused runtime suite for stats daemon + TASK-316 managed playback files; `bun run typecheck`; `bun run test:fast`.
+
+`bun run changelog:lint` is blocked by pre-existing unrelated `changes/326-anilist-time-position-post-watch.md` missing valid `type` metadata; `changes/327-stats-daemon-deferral.md` follows the expected fragment format.
+<!-- SECTION:NOTES:END -->
+
+## Final Summary
+
+<!-- SECTION:FINAL_SUMMARY:BEGIN -->
+Summary:
+- Restored in-app stats startup deferral to a live background stats daemon from another process, returning the daemon URL and skipping local stats server binding.
+- Kept stale/dead daemon cleanup and local stats startup fallback behavior intact.
+- Added a changelog fragment for the restored port-conflict fix.
+
+Verification:
+- `bun test src/main/runtime/stats-server-routing.test.ts`
+- `bun test src/main/runtime/stats-server-routing.test.ts src/core/services/mpv.test.ts src/core/services/mpv-protocol.test.ts src/main/runtime/mpv-client-event-bindings.test.ts src/main/runtime/mpv-main-event-bindings.test.ts src/main/runtime/mpv-main-event-main-deps.test.ts src/main/runtime/stats-cli-command.test.ts src/stats-daemon-control.test.ts`
+- `bun run typecheck`
+- `bun run test:fast`
+
+Blocked check:
+- `bun run changelog:lint` fails on unrelated pre-existing `changes/326-anilist-time-position-post-watch.md` metadata, not this change.
+<!-- SECTION:FINAL_SUMMARY:END -->