fix(create): import PackageManager as value for runtime validation

PackageManager is used as a runtime value in Object.values() for
--package-manager flag validation, so it cannot be a type-only import.

Author: fengmk2

packages/cli/src/create/bin.ts

@@ -11,7 +11,7 @@ import {
   rewriteMonorepoProject,
   rewriteStandaloneProject,
 } from '../migration/migrator.js';
-import { DependencyType, type PackageManager, type WorkspaceInfo } from '../types/index.js';
+import { DependencyType, PackageManager, type WorkspaceInfo } from '../types/index.js';
 import {
   detectExistingAgentTargetPaths,
   selectAgentTargetPaths,