feat(aiot): 边缘告警HTTP上报 + 移除配置中转层

- 新增 edge/report 端点接收边缘端HTTP告警上报
- alarm_event_service 新增 create_from_edge_report 幂等创建
- schemas 新增 EdgeAlarmReport 模型
- 移除 config_service/redis_service/yudao_aiot_config 配置中转
- MQTT 服务标记废弃，告警上报改为HTTP+COS
- config 新增 COS/Redis 配置项
- requirements 新增 redis 依赖

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

app/main.py

@@ -23,7 +23,6 @@ from app.schemas import (
 from app.services.alert_service import alert_service, get_alert_service
 from app.services.alarm_event_service import alarm_event_service, get_alarm_event_service
 from app.services.ai_analyzer import trigger_async_analysis
-from app.services.mqtt_service import get_mqtt_service
 from app.services.notification_service import get_notification_service
 from app.services.device_service import get_device_service
 from app.utils.logger import logger
@@ -33,44 +32,10 @@ import json
 
 
 # 全局服务实例
-mqtt_service = get_mqtt_service()
 notification_service = get_notification_service()
 device_service = get_device_service()
 
 
-def handle_mqtt_alert(payload: dict):
-    """处理 MQTT 告警消息（双写：旧表 + 新表）"""
-    try:
-        # 1. 写旧表（保持兼容）
-        alert = alert_service.create_alert_from_mqtt(payload)
-        if alert:
-            logger.info(f"MQTT 告警写入旧表: {alert.alert_no}")
-
-        # 2. 写新表
-        alarm = alarm_event_service.create_from_mqtt(payload)
-
-        # 3. WebSocket 通知（优先使用新表数据）
-        if alarm:
-            notification_service.notify_sync("new_alert", alarm.to_dict())
-            logger.info(f"MQTT 告警已处理并推送: {alarm.alarm_id}")
-        elif alert:
-            notification_service.notify_sync("new_alert", alert.to_dict())
-            logger.info(f"MQTT 告警已处理并推送(旧表): {alert.alert_no}")
-    except Exception as e:
-        logger.error(f"处理 MQTT 告警失败: {e}")
-
-
-def handle_mqtt_heartbeat(payload: dict):
-    """处理 MQTT 心跳消息"""
-    try:
-        device = device_service.handle_heartbeat(payload)
-        if device:
-            # 通过 WebSocket 推送设备状态
-            notification_service.notify_sync("device_status", device.to_dict())
-    except Exception as e:
-        logger.error(f"处理 MQTT 心跳失败: {e}")
-
-
 @asynccontextmanager
 async def lifespan(app: FastAPI):
     """应用生命周期管理"""
@@ -78,23 +43,15 @@ async def lifespan(app: FastAPI):
     init_db()
     logger.info("数据库初始化完成")
 
-    # 设置事件循环（用于从 MQTT 回调调用异步方法）
+    # 设置事件循环（用于从同步代码调用异步方法，如 WebSocket 通知）
     loop = asyncio.get_event_loop()
     notification_service.set_event_loop(loop)
 
-    # 注册 MQTT 处理器
-    mqtt_service.register_alert_handler(handle_mqtt_alert)
-    mqtt_service.register_heartbeat_handler(handle_mqtt_heartbeat)
-
-    # 启动 MQTT 服务
-    mqtt_service.start()
-
     logger.info("AI 告警平台启动完成")
 
     yield
 
     # 关闭
-    mqtt_service.stop()
     logger.info("AI 告警平台已关闭")
 
 
@@ -149,13 +106,9 @@ async def health_check():
     except Exception as e:
         db_status = f"unhealthy: {e}"
 
-    mqtt_stats = mqtt_service.get_statistics()
-    mqtt_status = "connected" if mqtt_stats["connected"] else "disconnected"
-
     return HealthResponse(
-        status="healthy" if db_status == "healthy" and mqtt_stats["connected"] else "degraded",
+        status="healthy" if db_status == "healthy" else "degraded",
         database=db_status,
-        mqtt=mqtt_status,
         websocket_connections=notification_service.manager.connection_count,
     )
 
@@ -333,14 +286,6 @@ async def get_device(
     return DeviceResponse(**device.to_dict())
 
 
-# ==================== MQTT 状态端点 ====================
-
-@app.get("/api/v1/mqtt/statistics")
-async def get_mqtt_statistics():
-    """获取 MQTT 服务统计"""
-    return mqtt_service.get_statistics()
-
-
 if __name__ == "__main__":
     import uvicorn
     uvicorn.run(