build: migrate to @angular/build builders, drop @angular-devkit/build-angular

CHANGELOG.md

@@ -47,6 +47,12 @@ bumped Angular peer requirement and one dropdown-positioning fix (below).
   `OnPush`, never shipped `zone.js`), so this is purely a demo/test change with no consumer impact. The few
   `fakeAsync`/`waitForAsync` specs (which still require `zone.js`) were rewritten to plain `async`/`await`.
 - Bumped `jasmine-core` to 6.3.x (dev/test only).
+- **Migrated the build to the `@angular/build` builders.** `angular.json` now uses `@angular/build:*`
+  (`application`, `dev-server`, `ng-packagr`, `karma`, `extract-i18n`) instead of the deprecated
+  `@angular-devkit/build-angular:*` aliases, and the `karma.conf.js` files drop the old framework/plugin
+  (the new karma builder wires these in itself). Removing the `@angular-devkit/build-angular` package
+  (replaced by `@angular/build`) drops the legacy Webpack toolchain — ~370 fewer installed packages and 0
+  audit vulnerabilities. Build output is unchanged.
 
 ---
 

angular.json

@@ -10,7 +10,7 @@
       "prefix": "ngui",
       "architect": {
         "build": {
-          "builder": "@angular-devkit/build-angular:ng-packagr",
+          "builder": "@angular/build:ng-packagr",
           "options": {
             "tsConfig": "projects/auto-complete/tsconfig.lib.json",
             "project": "projects/auto-complete/ng-package.json"
@@ -24,7 +24,7 @@
           "defaultConfiguration": "production"
         },
         "test": {
-          "builder": "@angular-devkit/build-angular:karma",
+          "builder": "@angular/build:karma",
           "options": {
             "main": "projects/auto-complete/src/test.ts",
             "tsConfig": "projects/auto-complete/tsconfig.spec.json",
@@ -54,7 +54,7 @@
       "prefix": "app",
       "architect": {
         "build": {
-          "builder": "@angular-devkit/build-angular:application",
+          "builder": "@angular/build:application",
           "options": {
             "outputPath": {
               "base": "docs",
@@ -108,7 +108,7 @@
           "defaultConfiguration": "production"
         },
         "serve": {
-          "builder": "@angular-devkit/build-angular:dev-server",
+          "builder": "@angular/build:dev-server",
           "options": {},
           "configurations": {
             "production": {
@@ -121,13 +121,13 @@
           "defaultConfiguration": "development"
         },
         "extract-i18n": {
-          "builder": "@angular-devkit/build-angular:extract-i18n",
+          "builder": "@angular/build:extract-i18n",
           "options": {
             "buildTarget": "demo:build"
           }
         },
         "test": {
-          "builder": "@angular-devkit/build-angular:karma",
+          "builder": "@angular/build:karma",
           "options": {
             "main": "projects/demo/src/test.ts",
             "tsConfig": "projects/demo/tsconfig.spec.json",