fix(websocket): configure Socket.IO path for nginx proxy

packages/services/conversation-service/src/conversation/conversation.gateway.ts

@@ -21,6 +21,7 @@ interface SendMessagePayload {
     credentials: true,
   },
   namespace: '/ws/conversation',
+  path: '/ws/conversation/socket.io',
 })
 export class ConversationGateway
   implements OnGatewayConnection, OnGatewayDisconnect

packages/web-client/src/features/chat/presentation/hooks/useChat.ts

@@ -21,6 +21,7 @@ export function useChat() {
     if (!userId) return;
 
     const socket = io('/ws/conversation', {
+      path: '/ws/conversation/socket.io',
       query: { userId },
       transports: ['websocket'],
     });