Start actor MCP connection

curl --request POST \
  --url https://api.wacht.dev/ai/mcp-servers/{mcp_server_id}/connect \
  --cookie __session=

{
  "status": 123,
  "message": "<string>",
  "session": {
    "id": "<string>",
    "created_at": "2023-11-07T05:31:56Z",
    "updated_at": "2023-11-07T05:31:56Z"
  },
  "errors": [
    {
      "code": "<string>",
      "message": "<string>"
    }
  ],
  "data": {
    "auth_url": "<string>"
  }
}