Fix CLI terminology: standardize on "agentic workflows" (#3696)

Author: Copilot

.github/workflows/go.mod

@@ -1,5 +1,3 @@
 module github.com/githubnext/gh-aw-workflows-deps
-go 1.21
 
-require (
-)
+go 1.21

cmd/gh-aw/main.go

@@ -85,7 +85,7 @@ var removeCmd = &cobra.Command{
 
 var enableCmd = &cobra.Command{
 	Use:   "enable [workflow-name]...",
-	Short: "Enable natural language action workflows",
+	Short: "Enable agentic workflows",
 	Long: `Enable one or more workflows by name, or all workflows if no names are provided.
 
 Examples:
@@ -102,7 +102,7 @@ Examples:
 
 var disableCmd = &cobra.Command{
 	Use:   "disable [workflow-name]...",
-	Short: "Disable natural language action workflows and cancel any in-progress runs",
+	Short: "Disable agentic workflows and cancel any in-progress runs",
 	Long: `Disable one or more workflows by name, or all workflows if no names are provided.
 
 Examples:

pkg/cli/status.go

@@ -12,7 +12,7 @@ import (
 func NewStatusCommand() *cobra.Command {
 	cmd := &cobra.Command{
 		Use:   "status [pattern]",
-		Short: "Show status of natural language action files and workflows",
+		Short: "Show status of agentic workflows",
 		Run: func(cmd *cobra.Command, args []string) {
 			var pattern string
 			if len(args) > 0 {