fix:修复因数据库缺少 working_hours 列导致 ROI 配置失败的问题。

- 手动执行 SQL：ALTER TABLE rois ADD COLUMN working_hours TEXT
- 确保现有 SQLite 数据库（security_monitor.db）结构与模型定义一致
- 避免因字段缺失引发 API 或算法读取异常

inference/rules/algorithms.py

@@ -293,11 +293,12 @@ class AlgorithmManager:
             algo_params.update(params)
 
         if algorithm_type == "leave_post":
+            roi_working_hours = algo_params.get("working_hours") or self.working_hours
             self.algorithms[roi_id]["leave_post"] = LeavePostAlgorithm(
                 threshold_sec=algo_params.get("threshold_sec", 300),
                 confirm_sec=algo_params.get("confirm_sec", 10),
                 return_sec=algo_params.get("return_sec", 30),
-                working_hours=self.working_hours,
+                working_hours=roi_working_hours,
             )
         elif algorithm_type == "intrusion":
             self.algorithms[roi_id]["intrusion"] = IntrusionAlgorithm(