Bumps [@angular/compiler](https://github.com/angular/angular/tree/HEAD/packages/compiler) from 20.3.16 to 21.1.0.
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/angular/angular/releases"><code>@angular/compiler</code>'s releases</a>.</em></p>
<blockquote>
<h2>VSCode Extension: 21.1.0</h2>
<h2>21.1.0 (2026-01-12)</h2>
<ul>
<li>fix(vscode-extension): convert enum member kind in completions correctly (<a href="50674f8c28">50674f8c28</a>)</li>
</ul>
<h2>21.1.0</h2>
<h3>common</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="d8790972be"><img src="https://img.shields.io/badge/d8790972be-feat-blue" alt="feat - d8790972be" /></a></td>
<td>Add custom transformations for Cloudflare and Cloudinary image loaders</td>
</tr>
<tr>
<td><a href="a6b8cb68af"><img src="https://img.shields.io/badge/a6b8cb68af-feat-blue" alt="feat - a6b8cb68af" /></a></td>
<td>support custom transformations in ImageKit and Imgix loaders</td>
</tr>
</tbody>
</table>
<h3>compiler</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="640693da8e"><img src="https://img.shields.io/badge/640693da8e-feat-blue" alt="feat - 640693da8e" /></a></td>
<td>Add support for multiple swich cases matching</td>
</tr>
<tr>
<td><a href="0ad3adc7c6"><img src="https://img.shields.io/badge/0ad3adc7c6-fix-green" alt="fix - 0ad3adc7c6" /></a></td>
<td>Support empty cases</td>
</tr>
</tbody>
</table>
<h3>core</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="99ad18a4ee"><img src="https://img.shields.io/badge/99ad18a4ee-feat-blue" alt="feat - 99ad18a4ee" /></a></td>
<td>Add stability debugging utility</td>
</tr>
<tr>
<td><a href="a0dfa5fa86"><img src="https://img.shields.io/badge/a0dfa5fa86-feat-blue" alt="feat - a0dfa5fa86" /></a></td>
<td>support rest arguments in function calls</td>
</tr>
<tr>
<td><a href="6e18fa8bc9"><img src="https://img.shields.io/badge/6e18fa8bc9-feat-blue" alt="feat - 6e18fa8bc9" /></a></td>
<td>support spread elements in array literals</td>
</tr>
<tr>
<td><a href="e407280ab5"><img src="https://img.shields.io/badge/e407280ab5-feat-blue" alt="feat - e407280ab5" /></a></td>
<td>support spread expressions in object literals</td>
</tr>
<tr>
<td><a href="06be8034bb"><img src="https://img.shields.io/badge/06be8034bb-fix-green" alt="fix - 06be8034bb" /></a></td>
<td>Microtask scheduling should be used after any application synchronization</td>
</tr>
<tr>
<td><a href="b4f584cf42"><img src="https://img.shields.io/badge/b4f584cf42-fix-green" alt="fix - b4f584cf42" /></a></td>
<td>return <code>StaticProvider</code> for <code>providePlatformInitializer</code></td>
</tr>
</tbody>
</table>
<h3>forms</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="1ea5c97703"><img src="https://img.shields.io/badge/1ea5c97703-feat-blue" alt="feat - 1ea5c97703" /></a></td>
<td>allow focusing bound control from field state</td>
</tr>
</tbody>
</table>
<h3>platform-browser</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="ec9dc94cee"><img src="https://img.shields.io/badge/ec9dc94cee-feat-blue" alt="feat - ec9dc94cee" /></a></td>
<td>add <code>context</code> to <code>createApplication</code></td>
</tr>
<tr>
<td><a href="ab67988d2e"><img src="https://img.shields.io/badge/ab67988d2e-feat-blue" alt="feat - ab67988d2e" /></a></td>
<td>resolve JIT resources in <code>createApplication</code></td>
</tr>
</tbody>
</table>
<h3>router</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="5edceffd04"><img src="https://img.shields.io/badge/5edceffd04-feat-blue" alt="feat - 5edceffd04" /></a></td>
<td>add controls for route cleanup</td>
</tr>
<tr>
<td><a href="a03c82564d"><img src="https://img.shields.io/badge/a03c82564d-feat-blue" alt="feat - a03c82564d" /></a></td>
<td>Add scroll behavior controls on router navigation</td>
</tr>
<tr>
<td><a href="e44839b016"><img src="https://img.shields.io/badge/e44839b016-feat-blue" alt="feat - e44839b016" /></a></td>
<td>Add standalone function to create a comptued for isActive</td>
</tr>
<tr>
<td><a href="c25d749d85"><img src="https://img.shields.io/badge/c25d749d85-feat-blue" alt="feat - c25d749d85" /></a></td>
<td>Execute RunGuardsAndResolvers function in injection context</td>
</tr>
<tr>
<td><a href="1c00ab42f8"><img src="https://img.shields.io/badge/1c00ab42f8-feat-blue" alt="feat - 1c00ab42f8" /></a></td>
<td>extend paramters of RedirectFunction to include paramMap and queryParamMap</td>
</tr>
<tr>
<td><a href="7003e8d241"><img src="https://img.shields.io/badge/7003e8d241-feat-blue" alt="feat - 7003e8d241" /></a></td>
<td>Publish Router's integration with platform Navigation API as experimental</td>
</tr>
<tr>
<td><a href="c84d372778"><img src="https://img.shields.io/badge/c84d372778-feat-blue" alt="feat - c84d372778" /></a></td>
<td>Support wildcard params with segments trailing (<a href="https://github.com/angular/angular/tree/HEAD/packages/compiler/issues/64737">#64737</a>)</td>
</tr>
</tbody>
</table>
<h3>upgrade</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="75fe8f8af9"><img src="https://img.shields.io/badge/75fe8f8af9-refactor-yellow" alt="refactor - 75fe8f8af9" /></a></td>
<td>deprecate <code>VERSION</code> export</td>
</tr>
</tbody>
</table>
<h2>Deprecations</h2>
<h3>upgrade</h3>
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Changelog</summary>
<p><em>Sourced from <a href="https://github.com/angular/angular/blob/main/CHANGELOG.md"><code>@angular/compiler</code>'s changelog</a>.</em></p>
<blockquote>
<h1>21.1.0 (2026-01-14)</h1>
<h2>Deprecations</h2>
<h3>upgrade</h3>
<ul>
<li><code>VERSION</code> from <code>@angular/upgrade</code> is deprecated. Please use the entry from <code>@angular/upgrade/static</code> instead.</li>
</ul>
<h3>common</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="d8790972be">d8790972be</a></td>
<td>feat</td>
<td>Add custom transformations for Cloudflare and Cloudinary image loaders</td>
</tr>
<tr>
<td><a href="a6b8cb68af">a6b8cb68af</a></td>
<td>feat</td>
<td>support custom transformations in ImageKit and Imgix loaders</td>
</tr>
</tbody>
</table>
<h3>compiler</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="640693da8e">640693da8e</a></td>
<td>feat</td>
<td>Add support for multiple swich cases matching</td>
</tr>
<tr>
<td><a href="0ad3adc7c6">0ad3adc7c6</a></td>
<td>fix</td>
<td>Support empty cases</td>
</tr>
</tbody>
</table>
<h3>core</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="99ad18a4ee">99ad18a4ee</a></td>
<td>feat</td>
<td>Add stability debugging utility</td>
</tr>
<tr>
<td><a href="a0dfa5fa86">a0dfa5fa86</a></td>
<td>feat</td>
<td>support rest arguments in function calls</td>
</tr>
<tr>
<td><a href="6e18fa8bc9">6e18fa8bc9</a></td>
<td>feat</td>
<td>support spread elements in array literals</td>
</tr>
<tr>
<td><a href="e407280ab5">e407280ab5</a></td>
<td>feat</td>
<td>support spread expressions in object literals</td>
</tr>
<tr>
<td><a href="06be8034bb">06be8034bb</a></td>
<td>fix</td>
<td>Microtask scheduling should be used after any application synchronization</td>
</tr>
<tr>
<td><a href="b4f584cf42">b4f584cf42</a></td>
<td>fix</td>
<td>return <code>StaticProvider</code> for <code>providePlatformInitializer</code></td>
</tr>
</tbody>
</table>
<h3>forms</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="1ea5c97703">1ea5c97703</a></td>
<td>feat</td>
<td>allow focusing bound control from field state</td>
</tr>
</tbody>
</table>
<h3>platform-browser</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="ec9dc94cee">ec9dc94cee</a></td>
<td>feat</td>
<td>add <code>context</code> to <code>createApplication</code></td>
</tr>
<tr>
<td><a href="ab67988d2e">ab67988d2e</a></td>
<td>feat</td>
<td>resolve JIT resources in <code>createApplication</code></td>
</tr>
</tbody>
</table>
<h3>router</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="5edceffd04">5edceffd04</a></td>
<td>feat</td>
<td>add controls for route cleanup</td>
</tr>
<tr>
<td><a href="a03c82564d">a03c82564d</a></td>
<td>feat</td>
<td>Add scroll behavior controls on router navigation</td>
</tr>
<tr>
<td><a href="e44839b016">e44839b016</a></td>
<td>feat</td>
<td>Add standalone function to create a comptued for isActive</td>
</tr>
<tr>
<td><a href="c25d749d85">c25d749d85</a></td>
<td>feat</td>
<td>Execute RunGuardsAndResolvers function in injection context</td>
</tr>
<tr>
<td><a href="1c00ab42f8">1c00ab42f8</a></td>
<td>feat</td>
<td>extend paramters of RedirectFunction to include paramMap and queryParamMap</td>
</tr>
<tr>
<td><a href="7003e8d241">7003e8d241</a></td>
<td>feat</td>
<td>Publish Router's integration with platform Navigation API as experimental</td>
</tr>
<tr>
<td><a href="c84d372778">c84d372778</a></td>
<td>feat</td>
<td>Support wildcard params with segments trailing (<a href="https://redirect.github.com/angular/angular/pull/64737">#64737</a>)</td>
</tr>
</tbody>
</table>
<h3>upgrade</h3>
<table>
<thead>
<tr>
<th>Commit</th>
<th>Type</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td><a href="75fe8f8af9">75fe8f8af9</a></td>
<td>refactor</td>
<td>deprecate <code>VERSION</code> export</td>
</tr>
</tbody>
</table>
</blockquote>
<p>... (truncated)</p>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="532633301b"><code>5326333</code></a> fix(forms): Ensure the control instruction comes after the other bindings</li>
<li><a href="29f074a93f"><code>29f074a</code></a> fix(forms): Rename signal form [field] to [formField]</li>
<li><a href="0875deab8d"><code>0875dea</code></a> refactor(compiler): switch <code>Binary.isAssignmentOperation</code> to type guard function</li>
<li><a href="83bac5adc9"><code>83bac5a</code></a> refactor(compiler): tighten <code>Unary.operator</code> type</li>
<li><a href="e01dcae4c5"><code>e01dcae</code></a> refactor: <code>_ParseAST.isAssignmentOperator</code> to type guard</li>
<li><a href="4cdf4d5760"><code>4cdf4d5</code></a> refactor(compiler): tighten <code>Binary.operation</code> type</li>
<li><a href="0ad3adc7c6"><code>0ad3adc</code></a> fix(compiler): Support empty cases</li>
<li><a href="4dc5ae54a9"><code>4dc5ae5</code></a> refactor(core): remove unused instruction parameter</li>
<li><a href="3a56c1367f"><code>3a56c13</code></a> fix(compiler): produce accurate span for typeof and void expressions</li>
<li><a href="a0dfa5fa86"><code>a0dfa5f</code></a> feat(core): support rest arguments in function calls</li>
<li>Additional commits viewable in <a href="https://github.com/angular/angular/commits/v21.1.0/packages/compiler">compare view</a></li>
</ul>
</details>
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