feat(ui): use recipes terminology in bulk delete confirmation for recipes page

The bulk delete confirmation modal always displayed "models" in its
text (title, message, countMessage) regardless of the current page
type. On the recipes page this is misleading since users are managing
recipes, not models.

- Add bulkDeleteRecipes i18n keys to all 10 locale files
- Update showBulkDeleteModal() to detect currentPageType and use
  recipes-specific wording when on the recipes page

locales/zh-CN.json

@@ -1085,6 +1085,12 @@
             "countMessage": "模型将被永久删除。",
             "action": "全部删除"
         },
+        "bulkDeleteRecipes": {
+            "title": "删除多个配方",
+            "message": "你确定要删除所有选中的配方及其相关文件吗？",
+            "countMessage": "配方将被永久删除。",
+            "action": "全部删除"
+        },
         "checkUpdates": {
             "title": "检查所有 {type} 的更新？",
             "message": "这会为库中的每个 {type} 检查更新，大型集合可能需要一些时间。",
@@ -1957,4 +1963,4 @@
             "retry": "重试"
         }
     }
-}
+}