feat(BE-48): auto-create product_warehouse on stock adjustment & remove unused APIs

- Change logic: automatically create product_warehouse if it does not exist during stock adjustment
- Remove unnecessary/unused API endpoints
- Ensure adjustment process continues even if product_warehouse was not previously available

internal/modules/inventory/product-warehouses/route.go

@@ -21,8 +21,6 @@ func ProductWarehouseRoutes(v1 fiber.Router, u user.UserService, s productWareho
 	// route.Delete("/:id", m.Auth(u), ctrl.DeleteOne)
 
 	route.Get("/", ctrl.GetAll)
-	route.Post("/", ctrl.CreateOne)
 	route.Get("/:id", ctrl.GetOne)
-	route.Patch("/:id", ctrl.UpdateOne)
-	route.Delete("/:id", ctrl.DeleteOne)
+
 }