chore: import upstream snapshot with attribution

packages/angular/internal.ts

@@ -0,0 +1,15 @@
+// Semi-private surface for first-party Nx packages.
+//
+// External plugins should NOT import from here — this entry is curated for
+// internal consumers and may change without semver protection. Mirrors
+// `@nx/devkit/internal`.
+//
+// These mirror the previously-public `@nx/angular/src/utils`,
+// `@nx/angular/src/generators/utils` and `@nx/angular/src/generators/move/move-impl`
+// subpaths (removed from the exports map in 23.0.0). The
+// `rewrite-internal-subpath-imports` migration routes consumers of those
+// subpaths here, so every symbol they exposed must be re-exported.
+
+export * from './src/utils';
+export * from './src/generators/utils';
+export { move } from './src/generators/move/move-impl';