fix: gate node p2p behind explicit config

pkg/agent/loop_nodes_p2p_test.go

@@ -0,0 +1,32 @@
+package agent
+
+import (
+	"testing"
+
+	"clawgo/pkg/bus"
+	"clawgo/pkg/config"
+)
+
+func TestNewAgentLoopDisablesNodeP2PByDefault(t *testing.T) {
+	cfg := config.DefaultConfig()
+	cfg.Agents.Defaults.Workspace = t.TempDir()
+
+	loop := NewAgentLoop(cfg, bus.NewMessageBus(), stubLLMProvider{}, nil)
+	if loop.nodeRouter == nil {
+		t.Fatalf("expected node router to be configured")
+	}
+	if loop.nodeRouter.P2P != nil {
+		t.Fatalf("expected node p2p transport to be disabled by default")
+	}
+}
+
+func TestNewAgentLoopEnablesNodeP2PWhenConfigured(t *testing.T) {
+	cfg := config.DefaultConfig()
+	cfg.Agents.Defaults.Workspace = t.TempDir()
+	cfg.Gateway.Nodes.P2P.Enabled = true
+
+	loop := NewAgentLoop(cfg, bus.NewMessageBus(), stubLLMProvider{}, nil)
+	if loop.nodeRouter == nil || loop.nodeRouter.P2P == nil {
+		t.Fatalf("expected node p2p transport to be enabled")
+	}
+}