fix(cloud): pin peer file-card filename + action buttons to the bottom (#11)

Make each peer file card a flex column filling its grid cell (flex flex-col
h-full) and pin the body row (filename + Play/Download) with mt-auto, so cards
with a media preview and cards without line their footers up across the row.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

neode-ui/src/api/rpc-client.ts

@@ -586,6 +586,21 @@ class RPCClient {
     })
   }
 
+  async checkPackageUpdates(): Promise<{
+    status: string
+    refreshed: boolean
+    catalog_apps?: number
+    error?: string
+  }> {
+    // Refreshes the remote app catalog now (decoupled from the binary OTA).
+    // Per-app `available-update` badges repopulate on the next package scan
+    // and arrive via the usual WebSocket push.
+    return this.call({
+      method: 'package.check-updates',
+      timeout: 25000,
+    })
+  }
+
   async getMarketplace(url: string): Promise<Record<string, unknown>> {
     return this.call({
       method: 'marketplace.get',