feat: client endpoints for clients page

modules/fulfillment_base/models/product.py

@@ -5,6 +5,7 @@ from sqlalchemy.orm import Mapped, mapped_column, relationship
 
 from models.base import BaseModel
 from models.mixins import IdMixin, SoftDeleteMixin
+from modules.clients.models import Client
 from modules.fulfillment_base.models import (
     ProductBarcode,
     BarcodeTemplate,
@@ -28,6 +29,9 @@ class Product(BaseModel, IdMixin, SoftDeleteMixin):
         default="", comment="Дополнительная информация"
     )
 
+    client_id: Mapped[int] = mapped_column(ForeignKey("clients.id"))
+    client: Mapped["Client"] = relationship(back_populates="products")
+
     images: Mapped[list["ProductImage"]] = relationship(
         "ProductImage",
         back_populates="product",