feat(server): Shortened asset ID in storage template (#16433)

* Update storage-template.service.ts

* Update supported-variables-panel.svelte

* docs example

* Update storage-template-settings.svelte

web/src/lib/components/admin-page/settings/storage-template/storage-template-settings.svelte

@@ -73,6 +73,7 @@
       filetype: 'IMG',
       filetypefull: 'IMAGE',
       assetId: 'a8312960-e277-447d-b4ea-56717ccba856',
+      assetIdShort: '56717ccba856',
       album: $t('album_name'),
     };
 

web/src/lib/components/admin-page/settings/storage-template/supported-variables-panel.svelte

@@ -27,6 +27,7 @@
       <p class="font-medium text-immich-primary dark:text-immich-dark-primary uppercase">{$t('other').toUpperCase()}</p>
       <ul>
         <li>{`{{assetId}}`} - Asset ID</li>
+        <li>{`{{assetIdShort}}`} - Asset ID (last 12 characters)</li>
         <li>{`{{album}}`} - Album Name</li>
       </ul>
     </div>