feat(vlm): sort versions by newest first in VLM view, with disabled sort dropdown

When viewing all versions of a model (VLM mode via 'x versions' button):
- Backend always sorts by version ID descending, ignoring current sort_by
- A temporary 'Newest version first' option is injected into the sort
  dropdown (removed on exit, not a permanent option)
- The sort dropdown is disabled (greyed out) while VLM is active
- On clearing VLM, the previous sort preference is restored and the
  dropdown re-enabled
- Handles stale VLM state (e.g. after page reload with leftover session)
- Covers all three model page types: loras, checkpoints, embeddings

Also fixes review nits:
- Correct i18n call pattern (defaultValue in options object)
- Shared _restoreSortAfterVlm() helper to avoid triple duplication

locales/de.json

@@ -682,7 +682,8 @@
                 "usageAsc": "Wenigste",
                 "versionsCount": "Lokale Versionen",
                 "versionsCountDesc": "Meiste Versionen zuerst",
-                "versionsCountAsc": "Wenigste Versionen zuerst"
+                "versionsCountAsc": "Wenigste Versionen zuerst",
+                "versionIdDesc": "Neueste Version zuerst"
             },
             "refresh": {
                 "title": "Modelliste aktualisieren",

locales/en.json

@@ -682,7 +682,8 @@
                 "usageAsc": "Least",
                 "versionsCount": "Local Versions",
                 "versionsCountDesc": "Most versions first",
-                "versionsCountAsc": "Fewest versions first"
+                "versionsCountAsc": "Fewest versions first",
+                "versionIdDesc": "Newest version first"
             },
             "refresh": {
                 "title": "Refresh model list",

locales/es.json

@@ -682,7 +682,8 @@
                 "usageAsc": "Menos",
                 "versionsCount": "Versiones locales",
                 "versionsCountDesc": "Más versiones primero",
-                "versionsCountAsc": "Menos versiones primero"
+                "versionsCountAsc": "Menos versiones primero",
+                "versionIdDesc": "Versión más nueva primero"
             },
             "refresh": {
                 "title": "Actualizar lista de modelos",

locales/fr.json

@@ -682,7 +682,8 @@
                 "usageAsc": "Moins",
                 "versionsCount": "Versions locales",
                 "versionsCountDesc": "Plus de versions d'abord",
-                "versionsCountAsc": "Moins de versions d'abord"
+                "versionsCountAsc": "Moins de versions d'abord",
+                "versionIdDesc": "Version la plus récente d'abord"
             },
             "refresh": {
                 "title": "Actualiser la liste des modèles",

locales/he.json

@@ -682,7 +682,8 @@
                 "usageAsc": "הכי פחות",
                 "versionsCount": "גרסאות מקומיות",
                 "versionsCountDesc": "הכי הרבה גרסאות ראשונות",
-                "versionsCountAsc": "הכי מעט גרסאות ראשונות"
+                "versionsCountAsc": "הכי מעט גרסאות ראשונות",
+                "versionIdDesc": "גרסה חדשה ביותר ראשונה"
             },
             "refresh": {
                 "title": "רענן רשימת מודלים",

locales/ja.json

@@ -682,7 +682,8 @@
                 "usageAsc": "少ない",
                 "versionsCount": "ローカルバージョン数",
                 "versionsCountDesc": "バージョン数の多い順",
-                "versionsCountAsc": "バージョン数の少ない順"
+                "versionsCountAsc": "バージョン数の少ない順",
+                "versionIdDesc": "最新バージョン順"
             },
             "refresh": {
                 "title": "モデルリストを更新",

locales/ko.json

@@ -682,7 +682,8 @@
                 "usageAsc": "적은 순",
                 "versionsCount": "로컬 버전 수",
                 "versionsCountDesc": "버전 수 많은 순",
-                "versionsCountAsc": "버전 수 적은 순"
+                "versionsCountAsc": "버전 수 적은 순",
+                "versionIdDesc": "최신 버전순"
             },
             "refresh": {
                 "title": "모델 목록 새로고침",

locales/ru.json

@@ -682,7 +682,8 @@
                 "usageAsc": "Меньше",
                 "versionsCount": "Локальные версии",
                 "versionsCountDesc": "Сначала больше версий",
-                "versionsCountAsc": "Сначала меньше версий"
+                "versionsCountAsc": "Сначала меньше версий",
+                "versionIdDesc": "Сначала новые версии"
             },
             "refresh": {
                 "title": "Обновить список моделей",

locales/zh-CN.json

@@ -682,7 +682,8 @@
                 "usageAsc": "最少",
                 "versionsCount": "本地版本数",
                 "versionsCountDesc": "版本数从多到少",
-                "versionsCountAsc": "版本数从少到多"
+                "versionsCountAsc": "版本数从少到多",
+                "versionIdDesc": "最新版本优先"
             },
             "refresh": {
                 "title": "刷新模型列表",

locales/zh-TW.json

@@ -682,7 +682,8 @@
                 "usageAsc": "最少",
                 "versionsCount": "本地版本數",
                 "versionsCountDesc": "版本數從多到少",
-                "versionsCountAsc": "版本數從少到多"
+                "versionsCountAsc": "版本數從少到多",
+                "versionIdDesc": "最新版本優先"
             },
             "refresh": {
                 "title": "重新整理模型列表",