добавлен биллинг и тарифы

добавлена интеграция с юкасса

internal/infrastructure/repository/billing/postgres.go

@@ -0,0 +1,47 @@
+package billing
+
+import (
+	"rmser/internal/domain/billing"
+
+	"github.com/google/uuid"
+	"gorm.io/gorm"
+)
+
+type pgRepository struct {
+	db *gorm.DB
+}
+
+func NewRepository(db *gorm.DB) billing.Repository {
+	return &pgRepository{db: db}
+}
+
+func (r *pgRepository) CreateOrder(order *billing.Order) error {
+	return r.db.Create(order).Error
+}
+
+func (r *pgRepository) GetOrder(id uuid.UUID) (*billing.Order, error) {
+	var order billing.Order
+	err := r.db.Where("id = ?", id).First(&order).Error
+	if err != nil {
+		return nil, err
+	}
+	return &order, nil
+}
+
+func (r *pgRepository) UpdateOrderStatus(id uuid.UUID, status billing.OrderStatus, paymentID string) error {
+	updates := map[string]interface{}{
+		"status": status,
+	}
+	if paymentID != "" {
+		updates["payment_id"] = paymentID
+	}
+	return r.db.Model(&billing.Order{}).Where("id = ?", id).Updates(updates).Error
+}
+
+func (r *pgRepository) GetActiveOrdersByUser(userID uuid.UUID) ([]billing.Order, error) {
+	var orders []billing.Order
+	err := r.db.Where("user_id = ? AND status = ?", userID, billing.StatusPending).
+		Order("created_at DESC").
+		Find(&orders).Error
+	return orders, err
+}