fix: 区分误报(IGNORED)和自动结单(DONE)状态

- VLM误报和手动忽略的handle_status改为IGNORED
- 自动结单(resolve_alarm)检查IGNORED状态，不覆盖误报
- 前端忽略操作兼容转换时自动设置handleStatus=IGNORED

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/routers/wechat_callback.py

@@ -94,7 +94,7 @@ async def alarm_action_callback(
         },
         "ignore": {
             "alarm_status": "FALSE",
-            "handle_status": "DONE",
+            "handle_status": "IGNORED",
             "remark": "标记误报",
         },
     }

app/routers/yudao_aiot_alarm.py

@@ -228,7 +228,7 @@ async def handle_alert(
     alarmId: Optional[str] = Query(None, description="告警ID"),
     id: Optional[str] = Query(None, description="告警ID（兼容）"),
     alarmStatus: Optional[str] = Query(None, description="告警状态: CONFIRMED/FALSE/CLOSED"),
-    handleStatus: Optional[str] = Query(None, description="处理状态: HANDLING/DONE"),
+    handleStatus: Optional[str] = Query(None, description="处理状态: HANDLING/DONE/IGNORED"),
     status: Optional[str] = Query(None, description="处理状态（兼容旧接口）"),
     remark: Optional[str] = Query(None, description="处理备注"),
     service: AlarmEventService = Depends(get_alarm_event_service),
@@ -244,6 +244,9 @@ async def handle_alert(
     if not alarmStatus and status:
         status_convert = {"handled": "CONFIRMED", "ignored": "FALSE", "resolved": "CLOSED"}
         alarmStatus = status_convert.get(status, status.upper())
+        # 忽略操作设置 handle_status=IGNORED，区别于自动结单的 DONE
+        if status == "ignored" and not handleStatus:
+            handleStatus = "IGNORED"
 
     alarm = service.handle_alarm(
         alarm_id=alarm_id,

app/services/alarm_event_service.py

@@ -574,8 +574,10 @@ class AlarmEventService:
             except Exception:
                 alarm.last_frame_time = beijing_now().replace(microsecond=0)
 
-            # 如果是人员回岗，标记为自动关闭
-            if resolve_type == "person_returned":
+            # 如果已被 VLM 标记为误报（IGNORED），只更新时长，不覆盖状态
+            if alarm.handle_status == "IGNORED":
+                logger.info(f"告警已为误报状态，仅更新时长: {alarm_id}")
+            elif resolve_type == "person_returned":
                 alarm.alarm_status = "CLOSED"
                 alarm.handle_status = "DONE"
                 alarm.handle_remark = "人员回岗自动关闭"

app/services/notify_dispatch.py

@@ -154,7 +154,7 @@ def _mark_false_alarm(alarm_id: str):
         if alarm:
             now = beijing_now()
             alarm.alarm_status = "FALSE"
-            alarm.handle_status = "DONE"
+            alarm.handle_status = "IGNORED"
             alarm.handle_remark = "VLM复核判定误报"
             alarm.handled_at = now
             # 计算告警时长（VLM复核时间 - 事件时间）