- Add get_join_instructions() function that generates structured join data
- Include environment variables, config files, P2P config, RPC config sections
- Add route handlers for /agent/join/{chain_id}.json (FastAPI and Flask)
- Update discovery endpoint to include join endpoint in agent APIs
- Add nginx proxy configuration for /agent/join/ path
- Deleted chains.json, discovery.json, islands.json static configuration files
- Removed /agent/join/ait-mainnet.json configuration guide
- Updated index.html to show only mainnet island, removed testnet card
- Changed note from "Agent-First Design" to "Live Data Only" emphasizing real-time RPC queries
- Added "Live data from RPC" indicator to mainnet island card
- All agent endpoints now serve dynamic data from blockchain