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)

src/core/services/immersion-tracker/__tests__/query.test.ts

@@ -3072,6 +3072,12 @@ test('media detail resolves retained sessions before lifetime summary exists', (
       WHERE session_id = ?
       `,
     ).run(startedAtMs + 600_000, 600_000, 100, 990, 1, sessionId);
+    insertFilteredWordOccurrence(db, {
+      sessionId,
+      videoId,
+      occurrenceCount: 4,
+      startedAtMs,
+    });
 
     assert.equal(getSessionSummaries(db, 1)[0]?.videoId, videoId);
     assert.equal(
@@ -3089,7 +3095,7 @@ test('media detail resolves retained sessions before lifetime summary exists', (
     assert.equal(detail.totalSessions, 1);
     assert.equal(detail.totalActiveMs, 600_000);
     assert.equal(detail.totalLinesSeen, 100);
-    assert.equal(detail.totalTokensSeen, 990);
+    assert.equal(detail.totalTokensSeen, 4);
     assert.equal(detail.totalCards, 1);
   } finally {
     db.close();

src/core/services/immersion-tracker/query-library.ts

@@ -243,6 +243,7 @@ export function getMediaLibrary(db: DatabaseSync): MediaLibraryRow[] {
 }
 
 export function getMediaDetail(db: DatabaseSync, videoId: number): MediaDetailRow | null {
+  const wordsExpr = sessionDisplayWordsExpr('s', 'swc', 'COALESCE(asm.tokensSeen, s.tokens_seen)');
   return db
     .prepare(
       `
@@ -265,7 +266,7 @@ export function getMediaDetail(db: DatabaseSync, videoId: number): MediaDetailRo
       END AS totalCards,
       CASE
         WHEN lm.video_id IS NOT NULL THEN COALESCE(lm.total_tokens_seen, 0)
-        ELSE COALESCE(SUM(COALESCE(asm.tokensSeen, s.tokens_seen, 0)), 0)
+        ELSE COALESCE(SUM(${wordsExpr}), 0)
       END AS totalTokensSeen,
       CASE
         WHEN lm.video_id IS NOT NULL THEN COALESCE(lm.total_lines_seen, 0)
@@ -290,6 +291,7 @@ export function getMediaDetail(db: DatabaseSync, videoId: number): MediaDetailRo
     LEFT JOIN imm_youtube_videos yv ON yv.video_id = v.video_id
     LEFT JOIN imm_sessions s ON s.video_id = v.video_id
     LEFT JOIN active_session_metrics asm ON asm.sessionId = s.session_id
+    LEFT JOIN session_word_counts swc ON swc.sessionId = s.session_id
     WHERE v.video_id = ?
       AND (lm.video_id IS NOT NULL OR s.session_id IS NOT NULL)
     GROUP BY v.video_id