add tui to no-channel build variant

cmd/cli_common.go

@@ -98,6 +98,9 @@ func printHelp() {
 	fmt.Println("  channel     Test and manage messaging channels")
 	fmt.Println("  node        Register remote node metadata and heartbeat")
 	fmt.Println("  skills      Manage skills (install, list, remove)")
+	if tuiEnabled {
+		fmt.Println("  tui         Chat in terminal using the gateway chat API")
+	}
 	fmt.Println("  uninstall   Uninstall clawgo components")
 	fmt.Println("  version     Show version information")
 	fmt.Println()

cmd/cmd_tui_stub.go

@@ -0,0 +1,12 @@
+//go:build !with_tui
+
+package main
+
+import "fmt"
+
+var tuiEnabled = false
+
+func tuiCmd() {
+	fmt.Println("TUI is not included in this build.")
+	fmt.Println("Install the no-channel variant to use `clawgo tui`.")
+}

cmd/main.go

@@ -71,6 +71,8 @@ func main() {
 		nodeCmd()
 	case "skills":
 		skillsCmd()
+	case "tui":
+		tuiCmd()
 	case "version", "--version", "-v":
 		fmt.Printf("%s clawgo v%s\n", logo, version)
 	case "uninstall":