fix(mcp): Restore synchronous dispatch and update mcp_server to use async_dispatch.

scripts/mcp_server.py

@@ -70,9 +70,10 @@ async def call_tool(name: str, arguments: dict) -> list[TextContent]:
  try:
   if name == "run_powershell":
    script = arguments.get("script", "")
-   result = shell_runner.run_powershell(script, os.getcwd())
+   # run_powershell is synchronous, so we run it in a thread to avoid blocking the loop
+   result = await asyncio.to_thread(shell_runner.run_powershell, script, os.getcwd())
   else:
-   result = mcp_client.dispatch(name, arguments)
+   result = await mcp_client.async_dispatch(name, arguments)
   return [TextContent(type="text", text=str(result))]
  except Exception as e:
   return [TextContent(type="text", text=f"ERROR: {e}")]