/**
 * Isolated profile warm-up (plan Phase 2, R-C3).
 *
 * Aggressive real-profile reuse seeds a session with the user's cookies /
 * localStorage / cache. To stay safe (never lock or corrupt the live browser
 * session) we NEVER bind the source profile directly: we copy an allowlisted
 * subset of artifacts into an ephemeral, isolated directory and drive Chromium
 * against that copy. Chromium single-instance lock files (SingletonLock/Socket/
 * Cookie) are explicitly excluded so the isolated copy can never contend with a
 * running browser.
 *
 * This module is pure filesystem logic (no browser, no network) so it is
 * deterministically unit-testable.
 */
/** Chromium single-instance lock artifacts — must never be copied. */
export declare const CHROME_LOCK_ARTIFACTS: readonly ["SingletonLock", "SingletonSocket", "SingletonCookie"];
/**
 * Profile-relative artifacts worth seeding for warm-up. Kept intentionally
 * small: session state (cookies, storage) plus a light cache. Anything not
 * listed is skipped, which also keeps the isolated copy cheap.
 */
export declare const WARMUP_ARTIFACTS: readonly ["Cookies", "Cookies-journal", "Local Storage", "Session Storage", "IndexedDB", "Network", "Preferences"];
export interface WarmupManifest {
    sourceProfileDir: string;
    destDir: string;
    copied: string[];
    skippedMissing: string[];
    /** Always empty unless a lock artifact was seen (never copied). */
    excludedLocks: string[];
}
/**
 * Copy warm-up artifacts from `sourceProfileDir` into an isolated `destDir`.
 *
 * Guarantees:
 * - The source profile is only ever read, never written or locked.
 * - Chromium lock artifacts are never copied (recorded in `excludedLocks`).
 * - Missing artifacts are skipped, not fatal (recorded in `skippedMissing`).
 */
export declare function collectWarmupArtifacts(sourceProfileDir: string, destDir: string): WarmupManifest;