Add bulk delete functionality for loras and implement model duplicates management. See #198

- Introduced a new API endpoint for bulk deleting loras.
- Added ModelDuplicatesManager to handle duplicate models for loras and checkpoints.
- Implemented UI components for displaying duplicates and managing selections.
- Enhanced controls with a button for finding duplicates.
- Updated templates to include a duplicates banner and associated actions.

static/js/components/controls/PageControls.js

@@ -175,6 +175,12 @@ export class PageControls {
             downloadButton.addEventListener('click', () => this.showDownloadModal());
         }
         
+        // Find duplicates button - available for both loras and checkpoints
+        const duplicatesButton = document.querySelector('[data-action="find-duplicates"]');
+        if (duplicatesButton) {
+            duplicatesButton.addEventListener('click', () => this.findDuplicates());
+        }
+        
         if (this.pageType === 'loras') {
             // Bulk operations button - LoRAs only
             const bulkButton = document.querySelector('[data-action="bulk"]');
@@ -499,4 +505,15 @@ export class PageControls {
         // Reload models with new filter
         await this.resetAndReload(true);
     }
+    
+    /**
+     * Find duplicate models
+     */
+    findDuplicates() {
+        if (window.modelDuplicatesManager) {
+            window.modelDuplicatesManager.findDuplicates();
+        } else {
+            console.error('Model duplicates manager not available');
+        }
+    }
 }