feat: add comment, creating refactor

models/client.py

@@ -1,5 +1,7 @@
+from typing import Optional
+
 from sqlalchemy import Column, Integer, String, DateTime, ForeignKey
-from sqlalchemy.orm import relationship
+from sqlalchemy.orm import relationship, Mapped, mapped_column
 
 from models import BaseModel
 
@@ -23,7 +25,8 @@ class Client(BaseModel):
 
     barcode_template_id = Column(Integer, ForeignKey('barcode_templates.id'), nullable=True)
     barcode_template = relationship('BarcodeTemplate', lazy='selectin')
-    # users = relationship('ClientUser', back_populates='client', cascade='all, delete')
+
+    comment: Mapped[Optional[str]] = mapped_column(nullable=True, server_default=None, comment='Комментарий')
 
 
 class ClientDetails(BaseModel):
@@ -44,7 +47,6 @@ class ClientDetails(BaseModel):
     modified_by_user_id = Column(Integer, ForeignKey('users.id'), nullable=False)
     modified_by_user = relationship('User')
 
-
 # class ClientContact(BaseModel):
 #     __tablename__ = 'client_contact'
 #     id: Mapped[int] = mapped_column(primary_key=True)