feat(bazel): speed up dev-turnaround by bundling types only when packaging (#45405)

Speeds up the dev-turnaround by only bundling types when packaging. Currently
bundling occurs for all the `ng_module` targets in devmode.

This has various positive benefits:

* Avoidance of this rather slower operation in development
* Makes APF-built packages also handle types for `ts_library` targets consistently.
* Allows us to ensure APF entry-points have `d.ts` _always_ bundled (working with ESM
module resolution in TypeScript -- currently experimental)
* Allows us to remove the secondary `package.json` files from APF (maybe APF v14? - seems
low-impact). This would clean-up the APF even more and fix resolution issues (like in Vite)

PR Close #45405

packages/bazel/BUILD.bazel

@@ -9,7 +9,7 @@ pkg_npm(
     ) + [
         "//packages/bazel/src:package_assets",
         "//packages/bazel/src/ng_module:package_assets",
-        "//packages/bazel/src/api-extractor:package_assets",
+        "//packages/bazel/src/types_bundle:package_assets",
         "//packages/bazel/src/ng_package:package_assets",
         "//packages/bazel/src/ngc-wrapped:package_assets",
         "//packages/bazel/third_party/github.com/bazelbuild/bazel/src/main/protobuf:package_assets",
@@ -20,6 +20,9 @@ pkg_npm(
         # users having to define the build setting, so we directly point the flag label to the place where
         # we expect `@angular/bazel` being located. Note: This expects the `@npm//` workspace to be used.
         "//packages/bazel/src:partial_compilation": "@npm//@angular/bazel/src:partial_compilation",
+        # Substitutions to account for label changes when `@angular/bazel` is consumed externally.
+        # NodeJS binaries are pre-built and should be consumed through the NPM bin scripts of the package.
+        "//packages/bazel/src/types_bundle:types_bundler": "@npm//@angular/bazel/bin:types_bundler",
         "//packages/bazel/": "//@angular/bazel/",
         "@npm//@bazel/concatjs/internal:": "//@bazel/concatjs/internal:",
     },
@@ -28,9 +31,9 @@ pkg_npm(
     # Dependencies on the full npm_package cause long re-builds.
     visibility = ["//integration:__subpackages__"],
     deps = [
-        "//packages/bazel/src/api-extractor:lib",
         "//packages/bazel/src/ng_package:lib",
         "//packages/bazel/src/ngc-wrapped:ngc_lib",
+        "//packages/bazel/src/types_bundle:lib",
     ],
 )
 # END-DEV-ONLY