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>

core/archipelago/src/container/docker_packages.rs

@@ -172,8 +172,10 @@ impl DockerPackageScanner {
             // Extract actual version from container image tag
             let running_version = image_versions::extract_version_from_image(&container.image);
 
+            // Decoupled from the binary OTA: prefer the remote app catalog,
+            // falling back to the image-versions.sh pin when uncovered/offline.
             let available_update =
-                image_versions::available_update_for_app(&app_id, &container.image);
+                crate::container::app_catalog::available_update_for_app(&app_id, &container.image);
 
             let package = PackageDataEntry {
                 state: package_state.clone(),