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

inventory-backend/app/api/v1/inbound/semi.py

@@ -240,3 +240,21 @@ def calculate_bom_cost():
     except Exception as e:
         traceback.print_exc()
         return jsonify({"code": 500, "msg": str(e)}), 500
+
+
+# ------------------------------------------------------------------
+# 获取最近一次入库的库位（跨表查询）
+# ------------------------------------------------------------------
+@inbound_semi_bp.route('/last-location', methods=['GET'])
+@permission_required('inbound_semi')
+def get_last_location():
+    """
+    获取指定物料最近一次入库的库位
+    查询顺序：半成品入库 -> 采购入库 -> 成品入库，返回最新入库的库位
+    """
+    base_id = request.args.get('base_id', type=int)
+    if not base_id:
+        return jsonify({"code": 400, "msg": "base_id required"}), 400
+
+    location = SemiInboundService.get_last_location_by_base_id(base_id)
+    return jsonify({"code": 200, "msg": "success", "data": {"location": location}})