feat: 妥协，只能在数据库中加对应的字段

app/model/ProjectModel.py

@@ -16,26 +16,8 @@ class ProjectModel(BasicModel, table=True):
   budget: float = Field(default=None, description="项目预算金额")
   version: int = Field(default=None, description="项目版本号")
 
-  # 使用 PrivateAttr 声明私有属性
-  _spent: Optional[Decimal] = PrivateAttr(default=None)
-  _balance: Optional[Decimal] = PrivateAttr(default=None)
-
-  # 属性访问器
-  @property
-  def spent(self) -> Optional[Decimal]:
-    return self._spent
-
-  @spent.setter
-  def spent(self, value: Optional[Decimal]) -> None:
-    self._spent = value
-
-  @property
-  def balance(self) -> Optional[Decimal]:
-    return self._balance
-
-  @balance.setter
-  def balance(self, value: Optional[Decimal]) -> None:
-    self._balance = value
+  spent: Decimal = Field(default=None, description="项目花费金额")
+  balance: Decimal = Field(default=None, description="项目预算余额")
 
   # /*---------------------------------------leader_id-------------------------------------------*/