feat: reconcile SQLite tables and columns at startup

internal/handler/notification.go

@@ -582,25 +582,6 @@ func countUnread(items []NotificationSummaryItem) int {
 	return total
 }
 
-func createNotificationReadTableIfNeeded(db *database.DB) error {
-	if db == nil {
-		return fmt.Errorf("db is nil")
-	}
-	_, err := db.Exec(`
-		CREATE TABLE IF NOT EXISTS notification_reads_by_user (
-			user_id TEXT NOT NULL,
-			event_id TEXT NOT NULL,
-			read_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
-			PRIMARY KEY(user_id, event_id)
-		);
-	`)
-	if err != nil {
-		return err
-	}
-	_, idxErr := db.Exec(`CREATE INDEX IF NOT EXISTS idx_notification_reads_user_read_at ON notification_reads_by_user(user_id, read_at DESC);`)
-	return idxErr
-}
-
 func pruneNotificationReads(db *database.DB, userID string, maxRows int) error {
 	if db == nil {
 		return fmt.Errorf("db is nil")
@@ -648,7 +629,7 @@ func normalizeMarkableEventID(id string) (string, bool) {
 
 // MarkRead 按事件 ID 标记已读
 func (h *NotificationHandler) MarkRead(c *gin.Context) {
-	if err := createNotificationReadTableIfNeeded(h.db); err != nil {
+	if h.db == nil {
 		c.JSON(http.StatusInternalServerError, gin.H{"error": "failed to prepare notification read table"})
 		return
 	}
@@ -713,12 +694,6 @@ func (h *NotificationHandler) GetSummary(c *gin.Context) {
 		return
 	}
 
-	if err := createNotificationReadTableIfNeeded(h.db); err != nil {
-		h.logger.Warn("初始化通知已读表失败", zap.Error(err))
-		c.JSON(http.StatusInternalServerError, gin.H{"error": "failed to initialize notification read table"})
-		return
-	}
-
 	english := requestWantsEnglish(c)
 	sinceMs := normalizeSinceMs(parseSinceMs(c.Query("since")))
 	limit, _ := strconv.Atoi(strings.TrimSpace(c.DefaultQuery("limit", "50")))