feat(media): add admin media CRUD preview and storage cleanup

apps/admin/src/app/media/page.tsx

@@ -1,4 +1,5 @@
 import { getMediaFoundationSummary, listMediaAssets } from "@cms/db"
+import Link from "next/link"
 
 import { AdminShell } from "@/components/admin-shell"
 import { FlashQueryCleanup } from "@/components/media/flash-query-cleanup"
@@ -123,12 +124,13 @@ export default async function MediaManagementPage({
                 <th className="py-2 pr-4">Size</th>
                 <th className="py-2 pr-4">Published</th>
                 <th className="py-2 pr-4">Updated</th>
+                <th className="py-2 pr-4">Actions</th>
               </tr>
             </thead>
             <tbody>
               {assets.length === 0 ? (
                 <tr>
-                  <td className="py-3 text-neutral-500" colSpan={6}>
+                  <td className="py-3 text-neutral-500" colSpan={7}>
                     No media assets yet. Upload your first asset above.
                   </td>
                 </tr>
@@ -147,6 +149,14 @@ export default async function MediaManagementPage({
                     <td className="py-3 pr-4 text-neutral-600">
                       {asset.updatedAt.toLocaleDateString("en-US")}
                     </td>
+                    <td className="py-3 pr-4">
+                      <Link
+                        href={`/media/${asset.id}`}
+                        className="text-xs font-medium text-neutral-700 underline underline-offset-2"
+                      >
+                        Open
+                      </Link>
+                    </td>
                   </tr>
                 ))
               )}