https://mcp.argo.games/ https://mcp.argo.games/llms.txt https://mcp.argo.games/.well-known/argo-mcp.json https://mcp.argo.games/.well-known/oauth-authorization-server https://mcp.argo.games/.well-known/oauth-protected-resource https://mcp.argo.games/.well-known/openid-configuration https://mcp.argo.games/.well-known/gemini-extension.json