Angular CLI: v21.2.0-next.1 Release

@schematics/angular

| Commit | Description | | -- | -- | | | add actionable feedback to vitest-browser schematic | | | warn when production configuration is missing for service worker |

@angular/cli

| Commit | Description | | -- | -- | | | integrate file formatting into update migrations | | | renamed files by their new path in the schematic workflow | | | optimize package manager discovery with stat-based probing |

@angular/build

| Commit | Description | | -- | -- | | | add headless option to unit-test builder | | | bundle setup files in unit-test builder for Vitest |