Angular CLI: v21.1.0-rc.0 Release

@schematics/angular

| Commit | Description | | -- | -- | | | move 'provideZoneChangeDetection' to the root module | | | update application schematics for module-based apps to use 'provideZoneChangeDetection' | | | update default app component message | | | update default app component welcome message |

@angular/cli

| Commit | Description | | -- | -- | | | add 'test' and 'e2e' MCP tools | | | Add "all" as an experimental tool group | | | handle array output from npm view in manifest parser | | | update dependency @modelcontextprotocol/sdk to v1.25.2 | | | update yarn berry package manager configuration |

@angular/build

| Commit | Description | | -- | -- | | | directly support ng-packagr in unit-test builder | | | disable TestBed teardown during debugging in Vitest | | | ensure correct project targeting during Vitest debugging | | | inject source-map-support for Vitest browser tests | | | normalize roots to POSIX in test discovery for Windows compatibility | | | resolve test files correctly on Windows when using non-C drives |