Upload requirements.txt with huggingface_hub

Migrate to Docker SDK to fix Smithery MCP server-card discovery

Fix port-7860 double-bind crash: attach the custom route to Gradio's own app instead of manually running a second server

Serve /.well-known/mcp/server-card.json for directories that can't complete a live MCP handshake scan (Smithery)

Add RelayShield Agentic Attack Surface MCP tools