Implement FCM

internal/repository/user_repository.go

@@ -110,3 +110,17 @@ func (r *UserRepositoryImpl) Count(ctx context.Context, filters map[string]inter
 	err := query.Count(&count).Error
 	return count, err
 }
+
+func (r *UserRepositoryImpl) UpdateFcmToken(ctx context.Context, id uuid.UUID, fcmToken string) error {
+	return r.db.WithContext(ctx).Model(&entities.User{}).
+		Where("id = ?", id).
+		Update("fcm_token", fcmToken).Error
+}
+
+func (r *UserRepositoryImpl) GetUsersWithFcmTokenByOrganization(ctx context.Context, organizationID uuid.UUID) ([]*entities.User, error) {
+	var users []*entities.User
+	err := r.db.WithContext(ctx).
+		Where("organization_id = ? AND is_active = ? AND fcm_token IS NOT NULL AND fcm_token != ''", organizationID, true).
+		Find(&users).Error
+	return users, err
+}