fix(@angular/build): prepend deploy-url to file loader output paths

Pass the publicPath option through to esbuild's common options so that
assets processed by the file loader (e.g., SVGs imported via URL) get
the deploy-url prefix applied, matching the previous webpack behavior.

Fixes #32789

Author: maruthang

packages/angular/build/src/builders/application/tests/options/deploy-url_spec.ts

@@ -58,6 +58,33 @@ describeBuilder(buildApplication, APPLICATION_BUILDER_INFO, (harness) => {
         );
     });
 
+    it('should prepend deploy URL to file loader import URLs', async () => {
+      await harness.writeFile(
+        './src/types.d.ts',
+        'declare module "*.svg" { const url: string; export default url; }',
+      );
+      await harness.writeFile('./src/app/test.svg', '<svg></svg>');
+      await harness.writeFile(
+        'src/main.ts',
+        `import svgUrl from './app/test.svg';\nconsole.log(svgUrl);`,
+      );
+
+      harness.useTarget('build', {
+        ...BASE_OPTIONS,
+        loader: {
+          '.svg': 'file',
+        },
+        deployUrl: 'https://example.com/some/path/',
+      });
+
+      const { result } = await harness.executeOnce();
+      expect(result?.success).toBeTrue();
+
+      harness
+        .expectFile('dist/browser/main.js')
+        .content.toContain('https://example.com/some/path/media/test.svg');
+    });
+
     it('should update resources component stylesheets to reference deployURL', async () => {
       await harness.writeFile('src/app/test.svg', '<svg></svg>');
       await harness.writeFile(

packages/angular/build/src/tools/esbuild/application-code-bundle.ts

@@ -550,6 +550,7 @@ function getEsBuildCommonOptions(options: NormalizedApplicationBuildOptions): Bu
     i18nOptions,
     customConditions,
     frameworkVersion,
+    publicPath,
   } = options;
 
   // Ensure unique hashes for i18n translation changes when using post-process inlining.
@@ -654,6 +655,7 @@ function getEsBuildCommonOptions(options: NormalizedApplicationBuildOptions): Bu
     },
     loader: loaderExtensions,
     footer,
+    publicPath,
     plugins,
   };
 }