First public release of nanobot-rs.\n\nHighlights:\n- Complete Rust port of nanobot core loop, tools, sessions, memory, and skills loader\n- Channel support: Telegram, Discord, WhatsApp bridge, Feishu (optional websocket feature)\n- Cron + heartbeat services with persistence\n- CLI commands: onboard, gateway, agent, channels, cron, status\n- GitHub Actions CI for test and feishu feature build\n\nVerification:\n- cargo test\n- cargo check --features feishu-websocket