feat(qqbot): implement QQ Bot notification module with API and WebSocket support

- Added QQ Bot notification module to facilitate proactive message sending and message reception via Gateway.
- Implemented API functions for sending C2C and group messages.
- Established WebSocket client for real-time message handling.
- Updated requirements to include websocket-client dependency.
- Enhanced schemas to support QQ channel capabilities and notification configurations.

app/schemas/message.py

@@ -114,6 +114,8 @@ class NotificationSwitch(BaseModel):
     vocechat: Optional[bool] = False
     # WebPush开关
     webpush: Optional[bool] = False
+    # QQ开关
+    qq: Optional[bool] = False
 
 
 class Subscription(BaseModel):
@@ -270,6 +272,15 @@ class ChannelCapabilityManager:
                 ChannelCapability.LINKS
             },
             fallback_enabled=True
+        ),
+        MessageChannel.QQ: ChannelCapabilities(
+            channel=MessageChannel.QQ,
+            capabilities={
+                ChannelCapability.RICH_TEXT,
+                ChannelCapability.IMAGES,
+                ChannelCapability.LINKS
+            },
+            fallback_enabled=True
         )
     }