fix: 修正每日营收任务逻辑并更新配置

修复daily_job函数中的逻辑错误，确保正确检查和处理已存在的营收记录
将config.json中的cutoff_hour和cutoff_time更新为00:00

backend/app.py

@@ -106,18 +106,16 @@ def daily_job(target_date=None):
         shop_name = cfg.get("shop_name", "益选便利店")
         if target_date is None:
             target_date = datetime.now().date()
-        
-    existing = DailyRevenue.query.filter_by(date=target_date).first()
-    if existing:
-        if not existing.is_final:
-            existing.is_final = True
-            existing.source = existing.source or 'generator'
-            db.session.commit()
-            push_feishu(target_date.isoformat(), existing.amount, "daily_finalize")
-        else:
-            push_feishu(target_date.isoformat(), existing.amount, "daily_exists")
-        return
-            
+        existing = DailyRevenue.query.filter_by(date=target_date).first()
+        if existing:
+            if not existing.is_final:
+                existing.is_final = True
+                existing.source = existing.source or 'generator'
+                db.session.commit()
+                push_feishu(target_date.isoformat(), existing.amount, "daily_finalize")
+            else:
+                push_feishu(target_date.isoformat(), existing.amount, "daily_exists")
+            return
         amount = gen_amount_for_date(target_date, cfg)
         rev = DailyRevenue(date=target_date, amount=amount, is_final=True, source='generator')
         db.session.add(rev)