fix: remove duplicate StockAdjustment model from stocktake.py to fix SQLAlchemy MetaData conflict

inventory-backend/app/models/inbound/stocktake.py

@@ -43,48 +43,3 @@ class StocktakeDraft(db.Model):
             'diff_qty': float(self.diff_qty or 0),
             'remark': self.remark
         }
-
-
-class StockAdjustment(db.Model):
-    """
-    盘盈盘亏调整表
-    记录盘点后的库存调整业务
-    """
-    __tablename__ = 'stock_adjustment'
-
-    id = db.Column(db.Integer, primary_key=True)
-    # 调整单号(ADJ-日期-流水)
-    order_no = db.Column(db.String(64), unique=True, index=True, comment='调整单号')
-    # 关联物料基础表ID
-    base_id = db.Column(db.Integer, index=True, comment='关联物料基础表ID')
-    # SKU
-    sku = db.Column(db.String(128), index=True, comment='SKU')
-    # 库位
-    warehouse_location = db.Column(db.String(128), comment='库位')
-    # 类型：盘盈 / 盘亏
-    adjust_type = db.Column(db.String(20), comment='类型：盘盈/盘亏')
-    # 调整数量(绝对值)
-    adjust_quantity = db.Column(db.Integer, nullable=False, comment='调整数量(绝对值)')
-    # 调整原因(必填)
-    reason = db.Column(db.String(255), nullable=False, comment='调整原因(必填)')
-    # 状态
-    status = db.Column(db.String(20), default='已完成', comment='状态')
-    # 经办人
-    operator = db.Column(db.String(64), comment='经办人')
-    # 创建时间
-    create_time = db.Column(db.DateTime, default=beijing_time)
-
-    def to_dict(self):
-        return {
-            'id': self.id,
-            'order_no': self.order_no,
-            'base_id': self.base_id,
-            'sku': self.sku,
-            'warehouse_location': self.warehouse_location,
-            'adjust_type': self.adjust_type,
-            'adjust_quantity': self.adjust_quantity,
-            'reason': self.reason,
-            'status': self.status,
-            'operator': self.operator,
-            'create_time': self.create_time.strftime('%Y-%m-%d %H:%M:%S') if self.create_time else None
-        }