Add temporary stderr debug prints to ReadMessage, readLoop, handleConn,
and ServerConn.Write to capture exact msgType bytes on the wire. This
will reveal why the client sees MsgResponseFlag set on Initialize
responses that the server sends as MsgInitialize (0x01).
Add MsgResponseFlag for error responses over the wire, enable concurrent
request dispatch with per-goroutine panic recovery, and simplify State
type to use canonical vm.State. Update consensus dependency to v1.22.67.
- Add zap/ package with zero-copy binary wire protocol
- Support for VM client/server communication over ZAP
- Wire format: [4-byte length][1-byte message type][payload]
- Includes sender, transport, and VM implementations
zeekay