refactor(@angular/cli): Add instructions to component zoneless migration to retain NgZone.run

I observed that it chose to do this in one test.  These should not be removed
for libraries that support Zone applications and also should not be
removed for applications until the zoneless migration is entirely
complete.

Author: atscott

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@angular/devkit-repo",
-  "version": "21.0.0-next.3",
+  "version": "21.0.0-next.4",
   "private": true,
   "description": "Software Development Kit for Angular",
   "keywords": [
@@ -46,20 +46,20 @@
   },
   "homepage": "https://github.com/angular/angular-cli",
   "devDependencies": {
-    "@angular/animations": "21.0.0-next.3",
+    "@angular/animations": "21.0.0-next.4",
     "@angular/cdk": "21.0.0-next.2",
-    "@angular/common": "21.0.0-next.3",
-    "@angular/compiler": "21.0.0-next.3",
-    "@angular/compiler-cli": "21.0.0-next.3",
-    "@angular/core": "21.0.0-next.3",
-    "@angular/forms": "21.0.0-next.3",
-    "@angular/localize": "21.0.0-next.3",
+    "@angular/common": "21.0.0-next.4",
+    "@angular/compiler": "21.0.0-next.4",
+    "@angular/compiler-cli": "21.0.0-next.4",
+    "@angular/core": "21.0.0-next.4",
+    "@angular/forms": "21.0.0-next.4",
+    "@angular/localize": "21.0.0-next.4",
     "@angular/material": "21.0.0-next.2",
     "@angular/ng-dev": "https://github.com/angular/dev-infra-private-ng-dev-builds.git#ad59d80826f751b82ed501821ec9fcf97a72c96b",
-    "@angular/platform-browser": "21.0.0-next.3",
-    "@angular/platform-server": "21.0.0-next.3",
-    "@angular/router": "21.0.0-next.3",
-    "@angular/service-worker": "21.0.0-next.3",
+    "@angular/platform-browser": "21.0.0-next.4",
+    "@angular/platform-server": "21.0.0-next.4",
+    "@angular/router": "21.0.0-next.4",
+    "@angular/service-worker": "21.0.0-next.4",
     "@bazel/bazelisk": "1.26.0",
     "@bazel/buildifier": "8.2.1",
     "@eslint/compat": "1.3.2",

packages/angular/cli/src/commands/mcp/tools/onpush-zoneless-migration/prompts.ts

@@ -154,6 +154,7 @@ export function generateZonelessMigrationInstructionsForComponent(
   3.  **DO NOT** use \`ChangeDetectionStrategy.OnPush\`. This will be the next step in the migration, but it is not part of this task.
   4.  **DO NOT** modify properties that are already signals or are used with the \`async\` pipe in the template, as they are already zoneless-compatible.
   5.  **DO NOT** make any changes to files other than the component file at \`${filePath}\` and its direct template/style files if necessary.
+  6.  **DO NOT** remove or modify usages of \`NgZone.run\` or \`NgZone.runOutsideAngular\`. These are still required.
 
   ### Final Step
   After you have applied all the required changes and followed all the rules, consult this tool again for the next steps in the migration process.`;