fix(cli): restore --stats flag lost in Cobra migration

The --stats flag was not carried over when the CLI was migrated from
manual os.Args parsing to Cobra commands. Add it back to the gateway
command and forward enableStats to NewAgentLoop.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

cmd/picoclaw/internal/gateway/command.go

@@ -8,6 +8,7 @@ func NewGatewayCommand() *cobra.Command {
 	var (
 		debug         bool
 		orchestration bool
+		enableStats   bool
 	)
 
 	cmd := &cobra.Command{
@@ -16,12 +17,13 @@ func NewGatewayCommand() *cobra.Command {
 		Short:   "Start picoclaw gateway",
 		Args:    cobra.NoArgs,
 		RunE: func(_ *cobra.Command, _ []string) error {
-			return gatewayCmd(debug, orchestration)
+			return gatewayCmd(debug, orchestration, enableStats)
 		},
 	}
 
 	cmd.Flags().BoolVarP(&debug, "debug", "d", false, "Enable debug logging")
 	cmd.Flags().BoolVar(&orchestration, "orchestration", false, "Enable subagent orchestration")
+	cmd.Flags().BoolVar(&enableStats, "stats", false, "Enable stats tracking")
 
 	return cmd
 }

cmd/picoclaw/internal/gateway/helpers.go

@@ -47,7 +47,7 @@ import (
 	"github.com/sipeed/picoclaw/pkg/tools"
 )
 
-func gatewayCmd(debug bool, orchestration bool) error {
+func gatewayCmd(debug bool, orchestration bool, enableStats bool) error {
 	if debug {
 		logger.SetLevel(logger.DEBUG)
 		fmt.Println("🔍 Debug mode enabled")
@@ -72,7 +72,7 @@ func gatewayCmd(debug bool, orchestration bool) error {
 	}
 
 	msgBus := bus.NewMessageBus()
-	agentLoop := agent.NewAgentLoop(cfg, msgBus, provider)
+	agentLoop := agent.NewAgentLoop(cfg, msgBus, provider, enableStats)
 
 	// Print agent startup info
 	fmt.Println("\n📦 Agent Status:")