- Add Close() method to Communicator for proper resource cleanup
- Move examples from go/example/ to go/examples/
- Move test files to go/test/ directory
- Add cross-test files for Dart-Go interop testing
- Add comprehensive test suite (tcp, ws, tls, heartbeat tests)
- Add crosstest directory for multi-language testing
- Add SKILL documentation for adding crosstest languages
- Add WebSocket binary frame support to protocol specification
- Update README and PROTOCOL.md to reflect dual TCP/WebSocket transport
- Add Go implementation with TCP, WebSocket, and heartbeat support
- Include .claude settings configuration
