fix: address PR 36 CodeRabbit follow-ups

Backlog.md

@@ -20,7 +20,7 @@ Priority keys:
 
 | ID     | Pri | Status | Area           | Title                                               |
 | ------ | --- | ------ | -------------- | --------------------------------------------------- |
-| SM-013 | P1  | doing  | review-followup | Address PR #36 CodeRabbit action items              |
+| SM-013 | P1  | done   | review-followup | Address PR #36 CodeRabbit action items              |
 
 ## Ready
 
@@ -241,7 +241,7 @@ Done:
 
 Title: Address PR #36 CodeRabbit action items
 Priority: P1
-Status: doing
+Status: done
 Scope:
 
 - `plugins/subminer-workflow/skills/subminer-change-verification/scripts/verify_subminer_change.sh`
@@ -251,7 +251,16 @@ Scope:
 - `src/core/services/immersion-tracker/maintenance.ts`
 - `src/main/boot/services.ts`
 - `src/main/character-dictionary-runtime/zip.test.ts`
-  Acceptance:
+Acceptance:
 - fix valid open CodeRabbit findings on PR #36
 - add focused regression coverage for behavior changes where practical
 - verify touched tests plus typecheck stay green
+
+Done:
+
+- hardened `--artifact-dir` validation in the verification script
+- fixed trend aggregation rounding and monthly ratio bucketing
+- preserved unwatched anime episodes in episode queries
+- restored seconds-based aggregate timestamps in shared maintenance
+- fixed the startup refactor compile break by making the predicates local at the call site
+- verified with `bun test src/core/services/immersion-tracker/__tests__/query.test.ts src/core/services/immersion-tracker/__tests__/query-split-modules.test.ts` and `bun run typecheck`

src/core/services/immersion-tracker/maintenance.ts

@@ -155,29 +155,32 @@ function upsertDailyRollupsForGroups(
       CAST(julianday(s.started_at_ms / 1000, 'unixepoch', 'localtime') - 2440587.5 AS INTEGER) AS rollup_day,
       s.video_id AS video_id,
       COUNT(DISTINCT s.session_id) AS total_sessions,
-      COALESCE(SUM(sm.max_active_ms), 0) / 60000.0 AS total_active_min,
+      COALESCE(SUM(COALESCE(sm.max_active_ms, s.active_watched_ms)), 0) / 60000.0 AS total_active_min,
-      COALESCE(SUM(sm.max_lines), 0) AS total_lines_seen,
+      COALESCE(SUM(COALESCE(sm.max_lines, s.lines_seen)), 0) AS total_lines_seen,
-      COALESCE(SUM(sm.max_tokens), 0) AS total_tokens_seen,
+      COALESCE(SUM(COALESCE(sm.max_tokens, s.tokens_seen)), 0) AS total_tokens_seen,
-      COALESCE(SUM(sm.max_cards), 0) AS total_cards,
+      COALESCE(SUM(COALESCE(sm.max_cards, s.cards_mined)), 0) AS total_cards,
       CASE
-        WHEN COALESCE(SUM(sm.max_active_ms), 0) > 0
+        WHEN COALESCE(SUM(COALESCE(sm.max_active_ms, s.active_watched_ms)), 0) > 0
-          THEN (COALESCE(SUM(sm.max_cards), 0) * 60.0) / (COALESCE(SUM(sm.max_active_ms), 0) / 60000.0)
+          THEN (COALESCE(SUM(COALESCE(sm.max_cards, s.cards_mined)), 0) * 60.0)
+            / (COALESCE(SUM(COALESCE(sm.max_active_ms, s.active_watched_ms)), 0) / 60000.0)
         ELSE NULL
       END AS cards_per_hour,
       CASE
-        WHEN COALESCE(SUM(sm.max_active_ms), 0) > 0
+        WHEN COALESCE(SUM(COALESCE(sm.max_active_ms, s.active_watched_ms)), 0) > 0
-          THEN COALESCE(SUM(sm.max_tokens), 0) / (COALESCE(SUM(sm.max_active_ms), 0) / 60000.0)
+          THEN COALESCE(SUM(COALESCE(sm.max_tokens, s.tokens_seen)), 0)
+            / (COALESCE(SUM(COALESCE(sm.max_active_ms, s.active_watched_ms)), 0) / 60000.0)
         ELSE NULL
       END AS tokens_per_min,
       CASE
-        WHEN COALESCE(SUM(sm.max_lookups), 0) > 0
+        WHEN COALESCE(SUM(COALESCE(sm.max_lookups, s.lookup_count)), 0) > 0
-          THEN CAST(COALESCE(SUM(sm.max_hits), 0) AS REAL) / CAST(SUM(sm.max_lookups) AS REAL)
+          THEN CAST(COALESCE(SUM(COALESCE(sm.max_hits, s.lookup_hits)), 0) AS REAL)
+            / CAST(COALESCE(SUM(COALESCE(sm.max_lookups, s.lookup_count)), 0) AS REAL)
         ELSE NULL
       END AS lookup_hit_rate,
       ? AS CREATED_DATE,
       ? AS LAST_UPDATE_DATE
     FROM imm_sessions s
-    JOIN (
+    LEFT JOIN (
       SELECT
         t.session_id,
         MAX(t.active_watched_ms) AS max_active_ms,
@@ -227,14 +230,14 @@ function upsertMonthlyRollupsForGroups(
       CAST(strftime('%Y%m', s.started_at_ms / 1000, 'unixepoch', 'localtime') AS INTEGER) AS rollup_month,
       s.video_id AS video_id,
       COUNT(DISTINCT s.session_id) AS total_sessions,
-      COALESCE(SUM(sm.max_active_ms), 0) / 60000.0 AS total_active_min,
+      COALESCE(SUM(COALESCE(sm.max_active_ms, s.active_watched_ms)), 0) / 60000.0 AS total_active_min,
-      COALESCE(SUM(sm.max_lines), 0) AS total_lines_seen,
+      COALESCE(SUM(COALESCE(sm.max_lines, s.lines_seen)), 0) AS total_lines_seen,
-      COALESCE(SUM(sm.max_tokens), 0) AS total_tokens_seen,
+      COALESCE(SUM(COALESCE(sm.max_tokens, s.tokens_seen)), 0) AS total_tokens_seen,
-      COALESCE(SUM(sm.max_cards), 0) AS total_cards,
+      COALESCE(SUM(COALESCE(sm.max_cards, s.cards_mined)), 0) AS total_cards,
       ? AS CREATED_DATE,
       ? AS LAST_UPDATE_DATE
     FROM imm_sessions s
-    JOIN (
+    LEFT JOIN (
       SELECT
         t.session_id,
         MAX(t.active_watched_ms) AS max_active_ms,
@@ -276,7 +279,7 @@ function getAffectedRollupGroups(
           FROM imm_session_telemetry t
           JOIN imm_sessions s
             ON s.session_id = t.session_id
-          WHERE t.sample_ms > ?
+          WHERE t.sample_ms >= ?
         `,
       )
       .all(lastRollupSampleMs) as unknown as RollupGroupRow[]

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

@@ -186,7 +186,7 @@ export function getSimilarWords(db: DatabaseSync, wordId: number, limit = 10): S
     headword: string;
     reading: string;
   } | null;
-  if (!word) return [];
+  if (!word || word.headword.trim() === '') return [];
   return db
     .prepare(
       `

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

@@ -205,7 +205,7 @@ export function getQueryHints(db: DatabaseSync): {
 
   const now = new Date();
   const todayLocal = Math.floor(
-    (now.getTime() / 1000 - now.getTimezoneOffset() * 60) / 86_400,
+    new Date(now.getFullYear(), now.getMonth(), now.getDate()).getTime() / 86_400_000,
   );
 
   const episodesToday =

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

@@ -272,5 +272,11 @@ export function deleteSessionsByIds(db: DatabaseSync, sessionIds: number[]): voi
 }
 
 export function toDbMs(ms: number | bigint): bigint {
-  return BigInt(Math.trunc(Number(ms)));
+  if (typeof ms === 'bigint') {
+    return ms;
+  }
+  if (!Number.isFinite(ms)) {
+    throw new TypeError(`Invalid database timestamp: ${ms}`);
+  }
+  return BigInt(Math.trunc(ms));
 }

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

@@ -168,7 +168,7 @@ function buildAggregatedTrendRows(rollups: ImmersionSessionRollupRow[]) {
       words: 0,
       sessions: 0,
     };
-    existing.activeMin += Math.round(rollup.totalActiveMin);
+    existing.activeMin += rollup.totalActiveMin;
     existing.cards += rollup.totalCards;
     existing.words += rollup.totalTokensSeen;
     existing.sessions += rollup.totalSessions;
@@ -179,7 +179,7 @@ function buildAggregatedTrendRows(rollups: ImmersionSessionRollupRow[]) {
     .sort(([left], [right]) => left - right)
     .map(([key, value]) => ({
       label: makeTrendLabel(key),
-      activeMin: value.activeMin,
+      activeMin: Math.round(value.activeMin),
       cards: value.cards,
       words: value.words,
       sessions: value.sessions,
@@ -243,22 +243,32 @@ function buildSessionSeriesByMonth(
     .map(([monthKey, value]) => ({ label: makeTrendLabel(monthKey), value }));
 }
 
-function buildLookupsPerHundredWords(sessions: TrendSessionMetricRow[]): TrendChartPoint[] {
+function buildLookupsPerHundredWords(
-  const lookupsByDay = new Map<number, number>();
+  sessions: TrendSessionMetricRow[],
-  const wordsByDay = new Map<number, number>();
+  groupBy: TrendGroupBy,
+): TrendChartPoint[] {
+  const lookupsByBucket = new Map<number, number>();
+  const wordsByBucket = new Map<number, number>();
 
   for (const session of sessions) {
-    const epochDay = getLocalEpochDay(session.startedAtMs);
+    const bucketKey =
-    lookupsByDay.set(epochDay, (lookupsByDay.get(epochDay) ?? 0) + session.yomitanLookupCount);
+      groupBy === 'month' ? getLocalMonthKey(session.startedAtMs) : getLocalEpochDay(session.startedAtMs);
-    wordsByDay.set(epochDay, (wordsByDay.get(epochDay) ?? 0) + getTrendSessionWordCount(session));
+    lookupsByBucket.set(
+      bucketKey,
+      (lookupsByBucket.get(bucketKey) ?? 0) + session.yomitanLookupCount,
+    );
+    wordsByBucket.set(
+      bucketKey,
+      (wordsByBucket.get(bucketKey) ?? 0) + getTrendSessionWordCount(session),
+    );
   }
 
-  return Array.from(lookupsByDay.entries())
+  return Array.from(lookupsByBucket.entries())
     .sort(([left], [right]) => left - right)
-    .map(([epochDay, lookups]) => {
+    .map(([bucketKey, lookups]) => {
-      const words = wordsByDay.get(epochDay) ?? 0;
+      const words = wordsByBucket.get(bucketKey) ?? 0;
       return {
-        label: dayLabel(epochDay),
+        label: groupBy === 'month' ? makeTrendLabel(bucketKey) : dayLabel(bucketKey),
         value: words > 0 ? +((lookups / words) * 100).toFixed(1) : 0,
       };
     });
@@ -595,7 +605,7 @@ export function getTrendsDashboard(
   const animePerDay = {
     episodes: buildEpisodesPerAnimeFromDailyRollups(dailyRollups, titlesByVideoId),
     watchTime: buildPerAnimeFromDailyRollups(dailyRollups, titlesByVideoId, (rollup) =>
-      Math.round(rollup.totalActiveMin),
+      rollup.totalActiveMin,
     ),
     cards: buildPerAnimeFromDailyRollups(
       dailyRollups,
@@ -633,7 +643,7 @@ export function getTrendsDashboard(
       ),
     },
     ratios: {
-      lookupsPerHundred: buildLookupsPerHundredWords(sessions),
+      lookupsPerHundred: buildLookupsPerHundredWords(sessions, groupBy),
     },
     animePerDay,
     animeCumulative: {

src/main.ts

@@ -4480,11 +4480,31 @@ const { runAndApplyStartupState } = composeHeadlessStartupHandlers<
 });
 
 runAndApplyStartupState();
-if (isAnilistTrackingEnabled(getResolvedConfig())) {
+const shouldUseMinimalStartup = Boolean(
-  void refreshAnilistClientSecretStateIfEnabled({ force: true });
+  appState.initialArgs?.texthooker ||
+    (appState.initialArgs?.stats &&
+      (appState.initialArgs?.statsCleanup ||
+        appState.initialArgs?.statsBackground ||
+        appState.initialArgs?.statsStop)),
+);
+const shouldSkipHeavyStartup = Boolean(
+  appState.initialArgs &&
+    (shouldRunSettingsOnlyStartup(appState.initialArgs) ||
+      appState.initialArgs.stats ||
+      appState.initialArgs.dictionary ||
+      appState.initialArgs.setup),
+);
+if (!appState.initialArgs || (!shouldUseMinimalStartup && !shouldSkipHeavyStartup)) {
+  if (isAnilistTrackingEnabled(getResolvedConfig())) {
+    void refreshAnilistClientSecretStateIfEnabled({ force: true }).catch((error) => {
+      logger.error('Failed to refresh AniList client secret state during startup', error);
+    });
     anilistStateRuntime.refreshRetryQueueState();
+  }
+  void initializeDiscordPresenceService().catch((error) => {
+    logger.error('Failed to initialize Discord presence service during startup', error);
+  });
 }
-void initializeDiscordPresenceService();
 const { createMainWindow: createMainWindowHandler, createModalWindow: createModalWindowHandler } =
   createOverlayWindowRuntimeHandlers<BrowserWindow>({
     createOverlayWindowDeps: {