feat: 数据治理 — 入库约束+元数据卡片+编码清洗+审计看板

backend/app/api/alert_rules.py

@@ -260,7 +260,7 @@ def run_all_alert_checks(db: Session = Depends(get_db)):
             
             value = latest_value.actual_value
             period = latest_value.period
-            params = rule.params or {}
+            import json; params = json.loads(rule.params) if isinstance(rule.params, str) else (rule.params or {})
             
             alert_level = None
             alert_message = None
@@ -534,7 +534,7 @@ def _check_forecast_alerts(db: Session) -> int:
                 continue
 
             # 检查预测值是否超限
-            params = rule.params or {}
+            import json; params = json.loads(rule.params) if isinstance(rule.params, str) else (rule.params or {})
             params["kpi"] = kpi
             for forecast in latest_forecasts:
                 value = forecast.predicted_cash