WIP: Save agent roles integration work before CHORUS rebrand

- Agent roles and coordination features
- Chat API integration testing
- New configuration and workspace management

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

vendor/github.com/marten-seemann/tcp/sys_darwin.go

@@ -0,0 +1,24 @@
+// Copyright 2014 Mikio Hara. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package tcp
+
+import (
+	"encoding/binary"
+	"unsafe"
+)
+
+var options = [soMax]option{
+	soBuffered:  {0, sysFIONREAD},
+	soAvailable: {sysSOL_SOCKET, sysSO_NWRITE},
+}
+
+func (nl *pfiocNatlook) rdPort() int {
+	return int(binary.BigEndian.Uint16(nl.Rdxport[:2]))
+}
+
+func (nl *pfiocNatlook) setPort(remote, local int) {
+	binary.BigEndian.PutUint16((*[2]byte)(unsafe.Pointer(&nl.Sxport))[:2], uint16(remote))
+	binary.BigEndian.PutUint16((*[2]byte)(unsafe.Pointer(&nl.Dxport))[:2], uint16(local))
+}