fix(mcp): run internal gateway MCP handlers off the event loop (#27)

POST /api/internal/mcp can invoke sync httpx/IMAP in handle_mcp_request;
await asyncio.to_thread(...) so those calls do not block uvicorn.

Co-authored-by: jubaoliang <jubaoliang@tencent.com>
Co-authored-by: Cursor <cursoragent@cursor.com>

Author: 3 people

src/octop/api/routers/internal_mcp.py

@@ -79,7 +79,7 @@ async def internal_mcp_post(
     if method == "initialize":
         session_id = secrets.token_urlsafe(16)
 
-    resp = handle_mcp_request(kind=kind, creds=creds, body=body)
+    resp = await asyncio.to_thread(handle_mcp_request, kind=kind, creds=creds, body=body)
     if not resp:
         return Response(status_code=202)