Angular CLI: v21.2.8 Release

@angular/cli

| Commit | Description | | -- | -- | | | dynamically resolve project Angular CLI executable inside MCP tools | | | ignore EBADF file system errors during MCP project scan | | | use headless option in MCP test tool |

@angular-devkit/build-angular

| Commit | Description | | -- | -- | | | ensure route has leading slash in prerender builder | | | fix app-shell route format and |

@angular/build

| Commit | Description | | -- | -- | | | use rootDir for HMR component updates path resolution | | | validate V8 coverage support for browsers in Vitest |