feat(oci): recover applications after a Proxmox reinstall, cluster records and AMD GPU profiles

The installation record of an OCI application travels with its container:
a copy inside the container and another in /etc/pve, written together
with the one kept on the host. A container restored on a newly installed
Proxmox, restored with another ID or moved to another node of a cluster
is recognised and registered again, with its private network, hookscript,
Rclone mount, host firewall rule and NVIDIA runtime. The Monitor offers
the same recovery from the Updates tab.

AMD GPUs are offered by generation. A GPU the ROCm image supports takes
the profile as it is; one of a supported family (Radeon 680M, 780M) is an
experimental option that asks for confirmation and is never proposed; an
older one is not offered. The GPU is checked with a real inference before
the installation accepts it. Recreate changes what runs recognition in an
installed Immich, between the CPU and a GPU of the host.

Updates:
- A failed update that is restored and checked removes its temporary
  container and the disks of the failed attempt.
- Every container volume is part of the backups, so Jellyfin, Plex and
  Hugo update with their default installation.
- An image published with a Docker-format manifest is recognised by its
  layers and build time and updates.
- The Proxmox notes of a multi-container application link to its LAN
  address.

oci/remote/oci_installation_state.py

@@ -88,6 +88,8 @@ def image_from_archive(path):
         manifest = blob(digest)
         config = blob(manifest['config']['digest'])
         return {'manifest_digest': digest, 'config_digest': manifest['config']['digest'],
+                'layers': [layer['digest'] for layer in manifest.get('layers', [])],
+                'created': config.get('created'),
                 'architecture': config['architecture'], 'os': config.get('os'),
                 'defaults': {k: config.get('config', {}).get(k) for k in FIELDS}}
 
@@ -190,8 +192,20 @@ def resolve_candidate(reference, architecture):
     # The build date identifies the image as the publisher released it: it is
     # what changes when an image is rebuilt, whether or not the application
     # version inside it moved.
-    return {'manifest_digest': digest, 'defaults': defaults, 'version': version,
-            'created': config.get('created')}
+    return {'manifest_digest': digest, 'layers': [layer['digest'] for layer in json.loads(raw).get('layers', [])],
+            'defaults': defaults, 'version': version, 'created': config.get('created')}
+
+
+def same_image(candidate, image):
+    """Whether what the registry serves is the image of an archive or a record.
+
+    The OCI archive made from a manifest published in the Docker format has
+    another manifest and another configuration digest: both are rewritten. Its
+    layers and the moment the image was built are the same in both."""
+    if candidate['manifest_digest'] == image.get('manifest_digest'):
+        return True
+    return bool(candidate.get('layers') and candidate.get('created')
+                and candidate['layers'] == image.get('layers') and candidate['created'] == image.get('created'))
 
 
 def compare(record, current, candidate=None):