- 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
- Removed ait-testnet from chains.json, discovery.json, and islands.json
- Deleted /agent/join/ait-testnet.json configuration guide
- Updated metadata counts from 2 to 1 active chain/island
- Added notes clarifying this node (aitbc) is HUB for mainnet only
- Updated index.html title and description to reflect mainnet hub role
- Removed testnet join section from homepage, kept only mainnet join guide
- Changed "Multi-island architecture" to "Federated multi-node architecture"
