/**
 * Known static asset extensions served directly from disk.
 *
 * @remarks
 * Keep this list aligned with server static-file handling and client routers
 * that must bypass SPA navigation for same-origin asset links.
 */
export declare const STATIC_FILE_EXTENSIONS: Set<string>;
/**
 * Returns whether a path or filename ends with a known static asset extension.
 */
export declare function hasKnownStaticExtension(fileOrPath: string): boolean;