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/multiformats/go-multiaddr-dns/mock.go

@@ -0,0 +1,31 @@
+package madns
+
+import (
+	"context"
+	"net"
+)
+
+type MockResolver struct {
+	IP  map[string][]net.IPAddr
+	TXT map[string][]string
+}
+
+var _ BasicResolver = (*MockResolver)(nil)
+
+func (r *MockResolver) LookupIPAddr(ctx context.Context, name string) ([]net.IPAddr, error) {
+	results, ok := r.IP[name]
+	if ok {
+		return results, nil
+	} else {
+		return []net.IPAddr{}, nil
+	}
+}
+
+func (r *MockResolver) LookupTXT(ctx context.Context, name string) ([]string, error) {
+	results, ok := r.TXT[name]
+	if ok {
+		return results, nil
+	} else {
+		return []string{}, nil
+	}
+}