// Package apperror defines safe application errors shared across module boundaries.
package apperror

import "errors"

var (
	ErrInvalidInput    = errors.New("invalid input")
	ErrUnauthenticated = errors.New("authentication required")
	ErrForbidden       = errors.New("permission denied")
	ErrConflict        = errors.New("already exists")
	ErrNotFound        = errors.New("not found")
	ErrUnavailable     = errors.New("service unavailable")
)