https://mach-agent-lab-edge.vercel.app/ https://mach-agent-lab-edge.vercel.app/research/agent-discovery-001.html https://mach-agent-lab-edge.vercel.app/llms.txt https://mach-agent-lab-edge.vercel.app/agents.txt https://mach-agent-lab-edge.vercel.app/.well-known/ard.json https://mach-agent-lab-edge.vercel.app/.well-known/agent-card.json https://mach-agent-lab-edge.vercel.app/api/mcp/server-card