fix(recipe): prevent empty grid by removing preserveScroll from refresh triggers

Bug: when scrolling down on recipes page, any operation with
preserveScroll: true would fetch only page 1 data then restore
scroll position to beyond the loaded items, leaving the grid empty.

Fix:
- Remove preserveScroll: true from all 7 must-refresh trigger
  paths (filter, search, sort, import, settings reload, sync,
  rebuild cache, sidebar folder nav)
- Replace full list refresh with updateSingleItem() for repair
  and bulk missing-LoRA download operations
- Update tests to match new scroll-free behavior

static/js/api/recipeApi.js

@@ -301,7 +301,7 @@ export async function syncChanges() {
         state.loadingManager.showSimpleLoading('Syncing changes...');
 
         // Simply reload the recipes without rebuilding cache
-        await resetAndReload(false, { preserveScroll: true });
+        await resetAndReload(false);
 
         showToast('toast.recipes.syncComplete', {}, 'success');
     } catch (error) {
@@ -329,7 +329,7 @@ export async function refreshRecipes() {
         }
 
         // After successful cache rebuild, reload the recipes
-        await resetAndReload(false, { preserveScroll: true });
+        await resetAndReload(false);
 
         showToast('toast.recipes.refreshComplete', {}, 'success');
     } catch (error) {

static/js/components/ContextMenu/RecipeContextMenu.js

@@ -306,8 +306,14 @@ export class RecipeContextMenu extends BaseContextMenu {
             if (result.success) {
                 if (result.repaired > 0) {
                     showToast('recipes.contextMenu.repair.success', {}, 'success');
-                    // Refresh the current card or reload
-                    this.resetAndReload();
+                    const detailResponse = await fetch(`/api/lm/recipe/${recipeId}`);
+                    if (detailResponse.ok) {
+                        const updatedRecipe = await detailResponse.json();
+                        const filePath = this.currentCard?.dataset?.filepath;
+                        if (filePath && state.virtualScroller) {
+                            state.virtualScroller.updateSingleItem(filePath, updatedRecipe);
+                        }
+                    }
                 } else {
                     showToast('recipes.contextMenu.repair.skipped', {}, 'info');
                 }

static/js/managers/BatchImportManager.js

@@ -432,7 +432,7 @@ export class BatchImportManager {
         
         // Refresh recipes list to show newly imported recipes
         if (window.recipeManager && typeof window.recipeManager.loadRecipes === 'function') {
-            window.recipeManager.loadRecipes({ preserveScroll: true });
+            window.recipeManager.loadRecipes(true);
         }
         
         // Show results step

static/js/managers/BulkMissingLoraDownloadManager.js

@@ -309,9 +309,22 @@ export class BulkMissingLoraDownloadManager {
             }, 'warning');
         }
 
-        // Refresh the recipes list to update LoRA status
-        if (window.recipeManager) {
-            window.recipeManager.loadRecipes({ preserveScroll: true });
+        // Update each affected recipe card with fresh data (LoRA inLibrary flags changed)
+        if (state.virtualScroller) {
+            const { extractRecipeId } = await import('../api/recipeApi.js');
+            for (const recipe of this.pendingRecipes) {
+                const recipeId = extractRecipeId(recipe.file_path);
+                if (!recipeId) continue;
+                try {
+                    const detailRes = await fetch(`/api/lm/recipe/${encodeURIComponent(recipeId)}`);
+                    if (detailRes.ok) {
+                        const updated = await detailRes.json();
+                        state.virtualScroller.updateSingleItem(recipe.file_path, updated);
+                    }
+                } catch (e) {
+                    console.warn('Failed to update recipe card after LoRA download:', e);
+                }
+            }
         }
     }
 

static/js/managers/FilterManager.js

@@ -662,7 +662,7 @@ export class FilterManager {
 
         // Call the appropriate manager's load method based on page type
         if (this.currentPage === 'recipes' && window.recipeManager) {
-            await window.recipeManager.loadRecipes({ preserveScroll: true });
+            await window.recipeManager.loadRecipes(true);
         } else if (this.currentPage === 'loras' || this.currentPage === 'embeddings' || this.currentPage === 'checkpoints') {
             // For models page, reset the page and reload
             await getModelApiClient().loadMoreWithVirtualScroll(true, false);
@@ -746,7 +746,7 @@ export class FilterManager {
 
         // Reload data using the appropriate method for the current page
         if (this.currentPage === 'recipes' && window.recipeManager) {
-            await window.recipeManager.loadRecipes({ preserveScroll: true });
+            await window.recipeManager.loadRecipes(true);
         } else if (this.currentPage === 'loras' || this.currentPage === 'checkpoints' || this.currentPage === 'embeddings') {
             await getModelApiClient().loadMoreWithVirtualScroll(true, true);
         }

static/js/managers/SearchManager.js

@@ -301,7 +301,7 @@ export class SearchManager {
       
       // Call the appropriate manager's load method based on page type
       if (this.currentPage === 'recipes' && window.recipeManager) {
-        window.recipeManager.loadRecipes({ preserveScroll: true });
+        window.recipeManager.loadRecipes(true);
       } else if (this.currentPage === 'loras' || this.currentPage === 'embeddings' || this.currentPage === 'checkpoints') {
         // For models page, reset the page and reload
         getModelApiClient().loadMoreWithVirtualScroll(true, false);

static/js/managers/SettingsManager.js

@@ -2876,7 +2876,7 @@ export class SettingsManager {
             await resetAndReload(false);
         } else if (this.currentPage === 'recipes') {
             // Reload the recipes without updating folders
-            await window.recipeManager.loadRecipes({ preserveScroll: true });
+            await window.recipeManager.loadRecipes(true);
         } else if (this.currentPage === 'checkpoints') {
             // Reload the checkpoints without updating folders
             await resetAndReload(false);

static/js/managers/import/DownloadManager.js

@@ -122,7 +122,7 @@ export class DownloadManager {
             modalManager.closeModal('importModal');
 
             // Refresh the recipe
-            window.recipeManager.loadRecipes({ preserveScroll: true });
+            window.recipeManager.loadRecipes(true);
 
         } catch (error) {
             console.error('Error:', error);

static/js/recipes.js

@@ -19,7 +19,7 @@ class RecipePageControls {
     }
 
     async resetAndReload() {
-        await refreshVirtualScroll({ preserveScroll: true });
+        await refreshVirtualScroll();
     }
 
     async refreshModels(fullRebuild = false) {

tests/frontend/api/recipeApi.bulk.test.js

@@ -177,9 +177,7 @@ describe('RecipeSidebarApiClient bulk operations', () => {
     );
   });
 
-  it('preserves scroll position for recipe reloads when requested', async () => {
-    const scrollSnapshot = { scrollContainer: { scrollTop: 480 }, scrollTop: 480 };
-    captureScrollPositionMock.mockReturnValue(scrollSnapshot);
+  it('reloads recipes without preserving scroll', async () => {
     global.fetch.mockResolvedValue({
       ok: true,
       json: async () => ({
@@ -189,18 +187,18 @@ describe('RecipeSidebarApiClient bulk operations', () => {
       }),
     });
 
-    await resetAndReload(false, { preserveScroll: true });
+    await resetAndReload(false);
 
-    expect(captureScrollPositionMock).toHaveBeenCalledTimes(1);
+    expect(captureScrollPositionMock).not.toHaveBeenCalled();
     expect(virtualScrollerMock.refreshWithData).toHaveBeenCalledWith(
       [{ id: 'recipe-1' }],
       1,
       false
     );
-    expect(restoreScrollPositionMock).toHaveBeenCalledWith(scrollSnapshot);
+    expect(restoreScrollPositionMock).not.toHaveBeenCalled();
   });
 
-  it('uses scroll-preserving reloads for syncChanges', async () => {
+  it('uses scroll-free reloads for syncChanges', async () => {
     global.fetch.mockResolvedValue({
       ok: true,
       json: async () => ({
@@ -212,8 +210,8 @@ describe('RecipeSidebarApiClient bulk operations', () => {
 
     await syncChanges();
 
-    expect(captureScrollPositionMock).toHaveBeenCalledTimes(1);
-    expect(restoreScrollPositionMock).toHaveBeenCalledTimes(1);
+    expect(captureScrollPositionMock).not.toHaveBeenCalled();
+    expect(restoreScrollPositionMock).not.toHaveBeenCalled();
     expect(loadingManagerMock.restoreProgressBar).toHaveBeenCalledTimes(1);
   });
 });