…kage

Inspects Rolldown output chunk imports to detect whether any generated library bundle imports `tslib` (for example, when custom decorators or explicit resource management helpers are emitted). When `tslib` is imported and not already declared in the library's `package.json` `dependencies`, resolves the `tslib` version range from `@angular/compiler` (with fallback to `tslib/package.json`) and adds it to the emitted `package.json`.

Closes angular#34131

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…stylesheet change

Component stylesheets (.css, .scss, .sass, .less) do not impact TypeScript semantic diagnostics or Angular template diagnostics.

When a stylesheet dependency changes during watch rebuilds, avoid deleting the component's cached Angular diagnostics or marking the component source file as affected for diagnostics re-collection.

…int package.json files

Subpath exports in @angular-devkit/schematics package.json explicitly define all entry points (./tasks, ./testing, and ./tools), making the nested package.json files redundant.

…nk elements

Under strict Content Security Policies that do not allow 'self' in
style-src or style-src-elem, external stylesheets must be authorized
via a cryptographic nonce.

…tion

Reusing TypeScript's extendedConfigCache across watch rebuilds eliminates redundant reading and re-parsing of extended tsconfig files from disk.

The referenced configuration files are also tracked so that entries in the cache are invalidated when those files change on disk.

See: angular/angular#71034

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