feat(recipe): add bulk Repair Metadata for Selected operation to recipes page

Adds a new bulk operation in the recipes page that allows users to select
multiple recipes and repair their metadata in batch.

Backend:
- New POST /api/lm/recipes/repair-bulk endpoint accepting recipe_ids array
- repair_recipes_bulk handler iterates repair_recipe_by_id for each recipe
- Response includes per-recipe updated data for frontend card refresh

Frontend:
- Bulk context menu: new 'Repair Metadata for Selected' item in Metadata section
- BulkManager.repairSelectedRecipes() with loading/toast flow
- Uses VirtualScroller.updateSingleItem() per repaired recipe (no full reload)
- Visibility controlled via repairMetadata actionConfig flag

Locales:
- Added repairMetadata, repairBulkComplete, repairBulkSkipped, repairBulkFailed
- Translated across all 9 supported languages

static/js/api/recipeApi.js

@@ -15,6 +15,7 @@ const RECIPE_ENDPOINTS = {
     move: '/api/lm/recipe/move',
     moveBulk: '/api/lm/recipes/move-bulk',
     bulkDelete: '/api/lm/recipes/bulk-delete',
+    repairBulk: '/api/lm/recipes/repair-bulk',
 };
 
 const RECIPE_SIDEBAR_CONFIG = {
@@ -557,6 +558,38 @@ export class RecipeSidebarApiClient {
         };
     }
 
+    async repairBulkModels(filePaths) {
+        if (!filePaths || filePaths.length === 0) {
+            throw new Error('No file paths provided');
+        }
+
+        const recipeIds = filePaths
+            .map((path) => extractRecipeId(path))
+            .filter((id) => !!id);
+
+        if (recipeIds.length === 0) {
+            throw new Error('No recipe IDs could be derived from file paths');
+        }
+
+        const response = await fetch(this.apiConfig.endpoints.repairBulk, {
+            method: 'POST',
+            headers: {
+                'Content-Type': 'application/json',
+            },
+            body: JSON.stringify({
+                recipe_ids: recipeIds,
+            }),
+        });
+
+        const result = await response.json();
+
+        if (!response.ok || !result.success) {
+            throw new Error(result.error || 'Failed to repair recipes');
+        }
+
+        return result;
+    }
+
     async bulkDeleteModels(filePaths) {
         if (!filePaths || filePaths.length === 0) {
             throw new Error('No file paths provided');