package auth import (	"fmt" 	"github.com/router-for-me/CLIProxyAPI/v7/internal/interfaces") // ProjectSelectionError indicates that the user must choose a specific project ID.type ProjectSelectionError struct {	Email    string	Projects []interfaces.GCPProjectProjects} func (e *ProjectSelectionError) Error() string {	if e == nil {		return "cliproxy auth: project selection required"	}	return fmt.Sprintf("cliproxy auth: project selection required for %s", e.Email)} // ProjectsDisplay returns the projects list for caller presentation.func (e *ProjectSelectionError) ProjectsDisplay() []interfaces.GCPProjectProjects {	if e == nil {		return nil	}	return e.Projects} // EmailRequiredError indicates that the calling context must provide an email or alias.type EmailRequiredError struct {	Prompt string} func (e *EmailRequiredError) Error() string {	if e == nil || e.Prompt == "" {		return "cliproxy auth: email is required"	}	return e.Prompt}