fix(api): expose real 500 error stack trace and fix missing func import

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

@@ -313,7 +313,9 @@ def delete_buy(id):
         # 捕获业务拦截的报错，返回友好的 msg
         return jsonify({"code": 400, "msg": str(ve)})
     except Exception as e:
-        return jsonify({"code": 500, "msg": "服务器内部错误，请联系系统管理员"}), 500
+        import traceback
+        traceback.print_exc()  # 在控制台打印真实错误堆栈
+        return jsonify({"code": 500, "msg": f"服务器内部错误详情: {str(e)}"}), 500
 
 
 # ------------------------------------------------------------------

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

@@ -185,9 +185,12 @@ def delete(id):
     try:
         material_name = ProductInboundService.delete_inbound(id)
         return jsonify({"code": 200, "msg": "删除成功", "material_name": material_name})
+    except ValueError as ve:
+        return jsonify({"code": 400, "msg": str(ve)})
     except Exception as e:
+        import traceback
         traceback.print_exc()
-        return jsonify({"code": 500, "msg": str(e)}), 500
+        return jsonify({"code": 500, "msg": f"服务器内部错误详情: {str(e)}"}), 500
 
 @inbound_product_bp.route('/<int:id>/history', methods=['GET'])
 @permission_required('inbound_product')

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

@@ -180,9 +180,12 @@ def delete_semi(id):
     try:
         material_name = SemiInboundService.delete_inbound(id)
         return jsonify({"code": 200, "msg": "删除成功", "material_name": material_name})
+    except ValueError as ve:
+        return jsonify({"code": 400, "msg": str(ve)})
     except Exception as e:
+        import traceback
         traceback.print_exc()
-        return jsonify({"code": 500, "msg": str(e)}), 500
+        return jsonify({"code": 500, "msg": f"服务器内部错误详情: {str(e)}"}), 500
 
 @inbound_semi_bp.route('/<int:id>/history', methods=['GET'])
 @permission_required('inbound_semi')

inventory-backend/app/services/inbound/product_service.py

@@ -4,6 +4,7 @@ from app.models.base import MaterialBase
 from app.models.outbound import TransOutbound
 from datetime import datetime, timedelta, timezone
 from sqlalchemy import or_, func, text, and_
+from sqlalchemy.exc import IntegrityError
 import traceback
 import json
 
@@ -258,6 +259,9 @@ class ProductInboundService:
                 db.session.commit()
                 return material_name
             return None
+        except IntegrityError:
+            db.session.rollback()
+            raise ValueError("该入库单已被出库、盘点或借还等业务关联，为保证账目完整，禁止删除！")
         except Exception as e:
             db.session.rollback()
             raise e

inventory-backend/app/services/inbound/semi_service.py

@@ -4,6 +4,7 @@ from app.models.base import MaterialBase
 from app.models.outbound import TransOutbound
 from datetime import datetime, timedelta, timezone
 from sqlalchemy import or_, func, text, and_
+from sqlalchemy.exc import IntegrityError
 import traceback
 import json
 
@@ -346,6 +347,9 @@ class SemiInboundService:
             db.session.delete(stock)
             db.session.commit()
             return material_name
+        except IntegrityError:
+            db.session.rollback()
+            raise ValueError("该入库单已被出库、盘点或借还等业务关联，为保证账目完整，禁止删除！")
         except Exception as e:
             db.session.rollback()
             raise e

inventory-backend/app/services/permission_service.py

@@ -1,6 +1,7 @@
 from app.models.system import SysMenu, SysElement, SysRolePermission
 from app.extensions import db
 from sqlalchemy.exc import SQLAlchemyError
+from sqlalchemy import func
 
 
 class PermissionService: