Angular CLI: v21.1.0 Release

@schematics/angular

| Commit | Description | | -- | -- | | | add browserMode option to jasmine-vitest schematic | | | generate detailed migration report for refactor-jasmine-vitest | | | add MCP configuration file to new workspaces |

@angular/cli

| Commit | Description | | -- | -- | | | add 'test' and 'e2e' MCP tools | | | Add "all" as an experimental tool group | | | Add MCP tools for building and running devservers | | | add signal forms lessons | | | correctly handle yarn classic tag manifest fetching | | | correctly spawn package managers on Windows in new abstraction | | | enhance list_projects MCP tool file system traversal and symlink handling | | | handle array output from npm view in manifest parser | | | improve signal forms lesson examples in AI tutor | | | rename mcp devserver tools to comply with naming spec | | | update dependency @modelcontextprotocol/sdk to v1.25.2 | | | update yarn berry package manager configuration | | | use project-local temporary directory in ng add | | | cache resolved specific version in package manager abstraction | | | optimize ng add version discovery |

@angular/build

| Commit | Description | | -- | -- | | | directly support ng-packagr in unit-test builder | | | disable TestBed teardown during debugging in Vitest | | | 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 | | | simplify SSL handling for ng serve with SSR (#31722) |