feat: update auth and fix url for gitea

backend/internal/repositories/auth_repository.go

@@ -20,16 +20,20 @@ func NewAuthRepository(db *sql.DB) AuthRepository {
 	}
 }
 
-func (a *authRepository) Register(ctx context.Context, user storage.UserReg) error {
+func (a *authRepository) Register(ctx context.Context, user storage.UserReg) (int, error) {
+	var id int
 	_, err := a.db.Exec(
 		"INSERT INTO users(email, github_id, github_login, avatar_url) VALUES(?, ?, ?, ?)",
 	)
 	if err != nil {
-		a.logger.Error("error scan: " + err.Error())
-		return err
+		a.logger.Error("error request: " + err.Error())
+		return 0, err
 	}
+	row := a.db.QueryRow("SELECT id FROM users WHERE github_id = ?", user.GithubID)
+	row.Scan(&id)
+
 	a.logger.Info("User registered:", "email", user.Email)
-	return nil
+	return id, nil
 }
 
 func (a *authRepository) IsRegistered(ctx context.Context, github_id int) (bool, error) {