fix

database.py

@@ -231,12 +231,13 @@ async def count_image_records(
 async def fetch_today_category_counts() -> List[Dict[str, Any]]:
   """统计当天按类别分组的数量"""
   query = """
-        SELECT
-            COALESCE(category, 'unknown') AS category,
-            COUNT(*) AS count
-        FROM tpl_app_processed_images
-        WHERE DATE(last_modified) = CURDATE()
-        GROUP BY COALESCE(category, 'unknown')
+      SELECT
+          COALESCE(category, 'unknown') AS category,
+          COUNT(*) AS count
+      FROM tpl_app_processed_images
+      WHERE last_modified >= CURDATE()
+        AND last_modified < DATE_ADD(CURDATE(), INTERVAL 1 DAY)
+      GROUP BY COALESCE(category, 'unknown')
     """
   rows = await fetch_all(query)
   return [