feat: add WeCom and Feishu IM bot integration

- support webhook and websocket modes for both platforms
- add im_channel_sessions migration for channel-session mapping
- register IM adapters and callback routes
- update config and docker-compose for IM env vars

go.mod

@@ -22,7 +22,9 @@ require (
 	github.com/golang-migrate/migrate/v4 v4.19.1
 	github.com/google/jsonschema-go v0.4.2
 	github.com/google/uuid v1.6.0
+	github.com/gorilla/websocket v1.5.0
 	github.com/hibiken/asynq v0.25.1
+	github.com/larksuite/oapi-sdk-go/v3 v3.5.3
 	github.com/mark3labs/mcp-go v0.43.0
 	github.com/milvus-io/milvus/client/v2 v2.6.2
 	github.com/minio/minio-go/v7 v7.0.91
@@ -167,7 +169,6 @@ require (
 	github.com/google/s2a-go v0.1.9 // indirect
 	github.com/googleapis/enterprise-certificate-proxy v0.3.7 // indirect
 	github.com/googleapis/gax-go/v2 v2.16.0 // indirect
-	github.com/gorilla/websocket v1.5.0 // indirect
 	github.com/grpc-ecosystem/go-grpc-middleware v1.4.0 // indirect
 	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0 // indirect
 	github.com/grpc-ecosystem/grpc-gateway v1.16.0 // indirect