feat: service deleting and rest categories placeholders

models/service.py

@@ -20,6 +20,11 @@ class Service(BaseModel):
 
     category_id = Column(Integer, ForeignKey('service_categories.id'), nullable=False, comment='ID категории услуги')
     category = relationship('ServiceCategory', lazy='joined')
+    is_deleted: Mapped[bool] = mapped_column(
+        nullable=False,
+        server_default='0',
+        comment='Удалена ли услуга'
+    )
 
     price = Column(
         Double,