修复 Agent 对接 IoT 工单平台：状态同步、图片持久化、roiId 字段

1. agent_dispatcher: IoT 成功与否都更新本地告警状态，不再依赖回调同步
2. agent_dispatcher: submit_order_result 持久化图片 URL 到 alarm_event_ext
3. work_order_client: create_order 添加 roi_id/source_type 参数
4. notify_dispatch: 创建工单时传 scene_id 作为 roiId

app/services/work_order_client.py

@@ -85,6 +85,8 @@ class WorkOrderClient:
         trigger_source: str = "自动上报",
         camera_id: str = "",
         image_url: str = "",
+        roi_id: str = "",
+        source_type: str = "",
     ) -> Optional[str]:
         """
         创建安保工单
@@ -123,19 +125,24 @@ class WorkOrderClient:
             body["cameraId"] = camera_id
         if image_url:
             body["imageUrl"] = image_url
+        if roi_id:
+            body["roiId"] = roi_id
+        if source_type:
+            body["sourceType"] = source_type
 
         body_json = json.dumps(body, ensure_ascii=False, separators=(",", ":"))
 
         try:
             headers = self._build_headers(body_json)
             url = f"{self._base_url}/open-api/ops/security/order/create"
+            logger.info(f"创建工单请求: url={url}, body={body_json}")
 
             async with httpx.AsyncClient(timeout=self._timeout) as client:
                 resp = await client.post(url, content=body_json, headers=headers)
                 data = resp.json()
 
             if data.get("code") != 0:
-                logger.error(f"创建工单失败: {data}")
+                logger.error(f"创建工单失败: status={resp.status_code}, resp={data}, body={body_json}")
                 return None
 
             # API 返回 {"code":0, "data": 1234567890} — data 直接是 orderId