refactor(@angular/cli): remove non runnable migrations in mcp modernize tool

The `test-bed-get` migration is not runnable via `ng g @angular/core` and references an non-existing documentation page.
`zoneless` does not exist for now (Angular v20.2.0-rc.0).

(cherry picked from commit 0f26944)

Author: cexbrayat

packages/angular/cli/src/commands/mcp/tools/modernize.ts

@@ -29,12 +29,6 @@ const TRANSFORMATIONS: Array<Transformation> = [
       'Converts tags for elements with no content to be self-closing (e.g., `<app-foo></app-foo>` becomes `<app-foo />`).',
     documentationUrl: 'https://angular.dev/reference/migrations/self-closing-tags',
   },
-  {
-    name: 'test-bed-get',
-    description:
-      'Updates `TestBed.get` to the preferred and type-safe `TestBed.inject` in TypeScript test files.',
-    documentationUrl: 'https://angular.dev/guide/testing/dependency-injection',
-  },
   {
     name: 'inject',
     description: 'Converts usages of constructor-based injection to the inject() function.',
@@ -70,11 +64,6 @@ const TRANSFORMATIONS: Array<Transformation> = [
       '3. Run `ng g @angular/core:standalone` and select "Bootstrap the project using standalone APIs"',
     documentationUrl: 'https://angular.dev/reference/migrations/standalone',
   },
-  {
-    name: 'zoneless',
-    description: 'Migrates the application to be zoneless.',
-    documentationUrl: 'https://angular.dev/guide/zoneless',
-  },
 ];
 
 const modernizeInputSchema = z.object({

packages/angular/cli/src/commands/mcp/tools/modernize_spec.ts

@@ -35,16 +35,16 @@ describe('Modernize Tool', () => {
 
   it('should return instructions for multiple transformations', async () => {
     const instructions = await getInstructions({
-      transformations: ['self-closing-tags-migration', 'test-bed-get'],
+      transformations: ['self-closing-tags-migration', 'inject'],
     });
 
     const expectedInstructions = [
       'To run the self-closing-tags-migration migration, execute the following command: ' +
         '`ng generate @angular/core:self-closing-tags-migration`.\nFor more information, ' +
         'see https://angular.dev/reference/migrations/self-closing-tags.',
-      'To run the test-bed-get migration, execute the following command: ' +
-        '`ng generate @angular/core:test-bed-get`.\nFor more information, ' +
-        'see https://angular.dev/guide/testing/dependency-injection.',
+      'To run the inject migration, execute the following command: ' +
+        '`ng generate @angular/core:inject`.\nFor more information, ' +
+        'see https://angular.dev/reference/migrations/inject-function.',
     ];
 
     expect(instructions?.sort()).toEqual(expectedInstructions.sort());