feat: article now is not required

models/product.py

@@ -8,7 +8,7 @@ class Product(BaseModel):
     __tablename__ = 'products'
     id = Column(Integer, autoincrement=True, primary_key=True, index=True)
     name = Column(String, nullable=False, index=True)
-    article = Column(String, nullable=False, index=True)
+    article = Column(String, nullable=False, default='', server_default='', index=True)
 
     client_id = Column(Integer, ForeignKey('clients.id'), nullable=False, comment='ID сделки')
     client = relationship('Client', back_populates='products')