Promote aitools from experimental to top-level command

The aitools command is feature-complete after the 5-PR series (#4810-#4814)
that added state tracking, install/update/uninstall/list/version commands,
and project scope support. Move it to a top-level `databricks aitools`
command so it is discoverable without knowing the `experimental` prefix.

The old `databricks experimental aitools` path is preserved as a hidden
deprecated alias for backward compatibility.

Co-authored-by: Isaac

Author: jamesbroadhead

cmd/cmd.go

@@ -5,6 +5,7 @@ import (
 	"strings"
 
 	"github.com/databricks/cli/cmd/psql"
+	aitoolscmd "github.com/databricks/cli/experimental/aitools/cmd"
 	ssh "github.com/databricks/cli/experimental/ssh/cmd"
 
 	"github.com/databricks/cli/cmd/account"
@@ -93,6 +94,7 @@ func New(ctx context.Context) *cobra.Command {
 	}
 
 	// Add other subcommands.
+	cli.AddCommand(aitoolscmd.NewAitoolsCmd())
 	cli.AddCommand(api.New())
 	cli.AddCommand(auth.New())
 	cli.AddCommand(completion.New())

cmd/experimental/experimental.go

@@ -20,7 +20,12 @@ These commands provide early access to new features that are still under
 development. They may change or be removed in future versions without notice.`,
 	}
 
-	cmd.AddCommand(aitoolscmd.NewAitoolsCmd())
+	// Keep aitools under experimental as a hidden backward-compatibility alias.
+	// The primary command is now registered at the top level.
+	aitoolsAlias := aitoolscmd.NewAitoolsCmd()
+	aitoolsAlias.Hidden = true
+	aitoolsAlias.Deprecated = "use 'databricks aitools' instead"
+	cmd.AddCommand(aitoolsAlias)
 
 	return cmd
 }

experimental/aitools/cmd/aitools.go

@@ -6,9 +6,8 @@ import (
 
 func NewAitoolsCmd() *cobra.Command {
 	cmd := &cobra.Command{
-		Use:    "aitools",
-		Hidden: true,
-		Short:  "Databricks AI Tools for coding agents",
+		Use:   "aitools",
+		Short: "Databricks AI Tools for coding agents",
 		Long: `Manage Databricks AI Tools.
 
 Provides commands to: