/**
 * Application-wide constants for timeouts and notification durations.
 *
 * Centralises magic numbers so every call-site references
 * a named constant instead of a bare numeric literal.
 */
export declare const TIMEOUTS: {
    /** Short operations: API metadata lookups */
    readonly API_SHORT: 8000;
    /** Standard operations: API data fetches */
    readonly API_STANDARD: 10000;
    /** Long operations: downloads, large fetches */
    readonly API_LONG: 30000;
    /** File I/O operations */
    readonly FILE_IO: 10000;
    /** Per-chunk download timeout */
    readonly DOWNLOAD_CHUNK: 30000;
    /** Semaphore acquisition */
    readonly SEMAPHORE_WAIT: 60000;
};
export declare const NOTIFICATION_DURATIONS: {
    /** Confirmations, simple messages */
    readonly SHORT: 3000;
    /** Warnings, status updates */
    readonly MEDIUM: 5000;
    /** Errors, important messages */
    readonly LONG: 6000;
};
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