fix: sort warehouse tree by name, fix tree batch delete cascade, and implement safe history location autofill

inventory-backend/app/api/v1/warehouse.py

@@ -18,11 +18,15 @@ def build_tree(nodes, parent_id=None):
             children = build_tree(nodes, node.id)
             node_dict = node.to_dict()
             if children:
-                node_dict['children'] = children
+                # 子节点按 name 升序排序
+                children_sorted = sorted(children, key=lambda x: x.get('name', ''))
+                node_dict['children'] = children_sorted
             else:
                 node_dict['children'] = []
             tree.append(node_dict)
-    return tree
+    # 当前层级按 name 升序排序
+    tree_sorted = sorted(tree, key=lambda x: x.get('name', ''))
+    return tree_sorted
 
 
 @warehouse_bp.route('/tree', methods=['GET'])
@@ -31,9 +35,9 @@ def get_tree():
     获取库位树形结构
     """
     try:
-        # 查询所有库位
-        all_locations = SysWarehouseLocation.query.order_by(SysWarehouseLocation.level, SysWarehouseLocation.id).all()
-        
+        # 查询所有库位，按 name 升序排序
+        all_locations = SysWarehouseLocation.query.order_by(SysWarehouseLocation.name.asc()).all()
+
         # 构建树形结构
         tree_data = build_tree(all_locations, parent_id=None)