fixed some errors with archive handling

app/main.py

@@ -1434,6 +1434,29 @@ def clear_completed_tasks():
         return jsonify({'ok': False, 'error': str(e)}), 500
 
 
+@main.route('/api/import/clear-queue', methods=['POST'])
+def clear_import_queue():
+    """
+    Clear pending and queued import tasks from the queue.
+    This stops tasks that haven't started processing yet.
+    """
+    try:
+        # Find and delete pending/queued tasks
+        deleted = ImportTask.query.filter(
+            ImportTask.status.in_(['pending', 'queued'])
+        ).delete(synchronize_session=False)
+
+        db.session.commit()
+
+        return jsonify({
+            'ok': True,
+            'deleted': deleted
+        })
+    except Exception as e:
+        db.session.rollback()
+        return jsonify({'ok': False, 'error': str(e)}), 500
+
+
 @main.route('/api/import/task-stats')
 def import_task_stats():
     """