refactor and add outlet product table

internal/models/product_outlet_price.go

@@ -0,0 +1,35 @@
+package models
+
+import (
+	"time"
+
+	"github.com/google/uuid"
+)
+
+type ProductOutletPrice struct {
+	ID        uuid.UUID
+	ProductID uuid.UUID
+	OutletID  uuid.UUID
+	Price     float64
+	CreatedAt time.Time
+	UpdatedAt time.Time
+}
+
+type CreateProductOutletPriceRequest struct {
+	ProductID uuid.UUID `validate:"required"`
+	OutletID  uuid.UUID `validate:"required"`
+	Price     float64   `validate:"required,min=0"`
+}
+
+type UpdateProductOutletPriceRequest struct {
+	Price *float64 `validate:"required,min=0"`
+}
+
+type ProductOutletPriceResponse struct {
+	ID        uuid.UUID `json:"id"`
+	ProductID uuid.UUID `json:"product_id"`
+	OutletID  uuid.UUID `json:"outlet_id"`
+	Price     float64   `json:"price"`
+	CreatedAt time.Time `json:"created_at"`
+	UpdatedAt time.Time `json:"updated_at"`
+}