/**
 * Versioned encoding for the persisted open-window list
 * (localStorage `<prefix>open_windows`).
 *
 * The stored payload is `{ version, windows }`. On read we accept ONLY the
 * current version; anything else — the pre-#163 bare-array format, or a payload
 * written by a newer build — is discarded (an empty list). Bumping
 * {@link OPEN_WINDOWS_VERSION} therefore lets restoration trust that every
 * persisted entry carries a real registry `appId`, so `WindowFactory` no longer
 * needs the pre-registry prop-sniffing / alias fallbacks (#163 C).
 *
 * The one-time cost of a bump is that windows open at upgrade time are dropped
 * on the next load — acceptable for an ephemeral open-window list.
 */
export declare const OPEN_WINDOWS_VERSION = 1;
/** Serialize the window list into the current versioned envelope. */
export declare const encodeOpenWindows: (windows: unknown[]) => string;
/**
 * Parse a persisted `open_windows` value, returning the window list only when
 * the envelope matches {@link OPEN_WINDOWS_VERSION}. Missing/old/newer/malformed
 * data yields an empty list rather than throwing.
 */
export declare const decodeOpenWindows: (raw: string | null) => unknown[];