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/config.py

@@ -45,7 +45,7 @@ class AIModelConfig:
 
 @dataclass
 class MQTTConfig:
-    """MQTT 配置"""
+    """MQTT 配置 (已废弃 - 告警上报已改为 HTTP + COS)"""
     broker_host: str = "localhost"
     broker_port: int = 1883
     client_id: str = "alert_platform"
@@ -54,6 +54,18 @@ class MQTTConfig:
     alert_topic: str = "edge/alert/#"
     heartbeat_topic: str = "edge/alert/heartbeat/#"
     qos: int = 1
+    enabled: bool = False  # 默认禁用
+
+
+@dataclass
+class RedisConfig:
+    """Redis 配置"""
+    host: str = "localhost"
+    port: int = 6379
+    password: str = ""
+    db: int = 0
+    max_connections: int = 50
+    decode_responses: bool = True
     enabled: bool = True
 
 
@@ -64,6 +76,7 @@ class Settings(BaseModel):
     app: AppConfig = AppConfig()
     ai_model: AIModelConfig = AIModelConfig()
     mqtt: MQTTConfig = MQTTConfig()
+    redis: RedisConfig = RedisConfig()
 
 
 def load_settings() -> Settings:
@@ -104,7 +117,15 @@ def load_settings() -> Settings:
             alert_topic=os.getenv("MQTT_ALERT_TOPIC", "edge/alert/#"),
             heartbeat_topic=os.getenv("MQTT_HEARTBEAT_TOPIC", "edge/alert/heartbeat/#"),
             qos=int(os.getenv("MQTT_QOS", "1")),
-            enabled=os.getenv("MQTT_ENABLED", "true").lower() == "true",
+            enabled=os.getenv("MQTT_ENABLED", "false").lower() == "true",
+        ),
+        redis=RedisConfig(
+            host=os.getenv("REDIS_HOST", "localhost"),
+            port=int(os.getenv("REDIS_PORT", "6379")),
+            password=os.getenv("REDIS_PASSWORD", ""),
+            db=int(os.getenv("REDIS_DB", "0")),
+            max_connections=int(os.getenv("REDIS_MAX_CONNECTIONS", "50")),
+            enabled=os.getenv("REDIS_ENABLED", "true").lower() == "true",
         ),
     )