Previously, ESM file resolution without extensions failed when using Vite, causing issues in module loading. This commit addresses the problem by automatically resolving `.mjs` files, aligning the behavior with the application builder and ensuring consistent module resolution across different build tools.

**NB**:  This is a workaround as valid ESM imports should always have an extension.

Closes #27841

(cherry picked from commit 2324d5a)

…--routing flag is present

update schematics to use RouterModule instead of RouterTestingModule when generating a new project with the --routing flag

Fixes #27691

(cherry picked from commit e3b8b78)

Remove ci testing pushing trigger as it no longer will work in the future and is unneccessary

(cherry picked from commit a302d18)

Prior to this change, script tags with the `src` attribute were not being assigned a CSP nonce during the build process. This is useful
strict-dynamic is a Content Security Policy (CSP) directive that simplifies the management of dynamically loaded scripts while maintaining a high level of security. It allows scripts that are initially trusted (through a nonce or hash) to load other scripts without additional restrictions.

Closes #27874

(cherry picked from commit c0ceddf)

…tly for karma code coverage

The `istanbul-lib-instrument` package provides the required functionality needed
to instrument code for test coverage within the context of the Angular CLI.
Since the build pipeline already contains a customized babel preset, this package
can be integrated directly into the pipeline.
This reduces the number of dependencies required for `@angular-devkit/build-angular`
including the deprecated `inflight` package.

(cherry picked from commit fb2981d)

…rker count

The Node.js `os.availableParallelism` API now provides more accurate values
when used within containers such as many CI environments. This provides a
better default when using resource limited CI setups. The value is still
set to a maximum default of four. However, the `NG_BUILD_MAX_WORKERS`
environment variable can be used to set the value to an explicit value
if required.

(cherry picked from commit dd07049)