fix: name the guest in VM/CT health alerts, refresh AI models, propose the recipe's volume choice

- A health problem of a VM or CT names the guest in its title and in the
  Quiet Hours summary; a recovery shows its category by name in the
  reader's language.
- AI model lists reviewed against each provider: Gemini adds 3.6/3.7/3.8
  Flash, Groq adds gpt-oss-120b, and Groq/OpenRouter models no longer
  served are removed.
- OCI installer proposes the volume choice the recipe declares, so a path
  meant for a host directory is proposed as one; Duplicati /source is
  proposed on a host directory.

oci/catalog/apps/duplicati-official.json

@@ -117,7 +117,7 @@
           "managed-volume",
           "host-bind"
         ],
-        "default": "managed-volume",
+        "default": "host-bind",
         "managed_volume": {
           "backup": true,
           "default_size_gb": 8

oci/catalog/apps/duplicati.json

@@ -166,7 +166,7 @@
           "managed-volume",
           "host-bind"
         ],
-        "default": "managed-volume",
+        "default": "host-bind",
         "managed_volume": {
           "backup": true,
           "default_size_gb": 8

oci/catalog/curated/duplicati-official.json

@@ -117,7 +117,7 @@
           "managed-volume",
           "host-bind"
         ],
-        "default": "managed-volume",
+        "default": "host-bind",
         "managed_volume": {
           "backup": true,
           "default_size_gb": 8

oci/catalog/overlays/duplicati.json

@@ -58,6 +58,56 @@
         "prompt": "Password of the Duplicati web interface",
         "source": "linuxserver-compose"
       }
+    ],
+    "volumes": [
+      {
+        "id": "volume-0",
+        "container_path": "/config",
+        "compose_source_example": "/path/to/duplicati/config",
+        "read_only": false,
+        "required": true,
+        "installation_choice": [
+          "managed-volume",
+          "host-bind"
+        ],
+        "default": "managed-volume",
+        "managed_volume": {
+          "backup": true,
+          "default_size_gb": 4
+        }
+      },
+      {
+        "id": "volume-1",
+        "container_path": "/backups",
+        "compose_source_example": "/path/to/backups",
+        "read_only": false,
+        "required": true,
+        "installation_choice": [
+          "managed-volume",
+          "host-bind"
+        ],
+        "default": "managed-volume",
+        "managed_volume": {
+          "backup": true,
+          "default_size_gb": 8
+        }
+      },
+      {
+        "id": "volume-2",
+        "container_path": "/source",
+        "compose_source_example": "/path/to/source",
+        "read_only": false,
+        "required": true,
+        "installation_choice": [
+          "managed-volume",
+          "host-bind"
+        ],
+        "default": "host-bind",
+        "managed_volume": {
+          "backup": true,
+          "default_size_gb": 8
+        }
+      }
     ]
   },
   "proxmox": {

oci/examples/duplicati-official.oci-compose.json

@@ -45,7 +45,8 @@
         "container_path": "/backups"
       },
       {
-        "container_path": "/source"
+        "container_path": "/source",
+        "default": "host-bind"
       }
     ],
     "restart": "unless-stopped"

oci/src/proxmenux_oci/cli.py

@@ -147,6 +147,8 @@ def _recommended_storage(volume: dict[str, Any]) -> str:
     default = volume.get("default")
     if {"managed-volume", "host-bind"} <= choices:
         both = f"{translate('Container volume')} / {translate('Host directory')}"
+        if default == "host-bind":
+            both = f"{translate('Host directory')} / {translate('Container volume')}"
         return f"{translate('Optional')}: {both}" if default == "skip" else both
     if default == "skip":
         return translate("Optional, not mounted by default")

oci/src/proxmenux_oci/installer.py

@@ -507,8 +507,8 @@ def build_deployment(
         offered = list(choices)
         chosen = advanced or {"managed-volume", "host-bind"} <= set(choices)
         if chosen and len(offered) > 1:
-            # The answer is the user's: a host directory is never proposed.
-            proposed = "managed-volume" if item["default"] == "host-bind" else item["default"]
+            # The answer is the user's; the choice of the oci-compose is proposed.
+            proposed = item["default"]
             volume_mode = ui.choose(f"{translate('Where to store')} {item['container_path']}",
                                     [(choice, labels[choice]) for choice in offered], proposed)
             if volume_mode is None:

oci/tests/test_default_install_essentials.py

@@ -104,6 +104,15 @@ class DefaultInstallEssentialsTests(unittest.TestCase):
             self.assertEqual({m["source"] for m in plan["mounts"] if m["type"] == "managed-volume"} - {"Public"},
                              set(), app)
 
+    def test_the_files_to_back_up_are_proposed_on_a_host_directory(self, *_):
+        for app in ("duplicati", "duplicati-official"):
+            ui, plan = self.build(app)
+            source = next(m for m in plan["mounts"] if m["container_path"] == "/source")
+            self.assertEqual(source["type"], "host-bind", app)
+            self.assertIn("Host path for /source", ui.asked, app)
+            backups = next(m for m in plan["mounts"] if m["container_path"] == "/backups")
+            self.assertEqual(backups["type"], "managed-volume", app)
+
     def test_the_members_of_a_stack_ask_nothing_of_their_own(self, *_):
         for app in ("linkwarden", "suite-arr"):
             ui, _plan = self.build(app)