import { CoreErrorException } from "../../../contracts/domain/errors/index.js";
/** Stable error codes for SyncPollingSupervisor option validation. */
export declare const SYNC_POLLING_ERROR_CODES: {
    /** A numeric option must be a positive (> 0) safe integer. */
    readonly POSITIVE_INTEGER_REQUIRED: "sync_polling_positive_integer_required";
    /** errorBackoffMaxMs must be >= errorBackoffInitialMs. */
    readonly BACKOFF_ORDER_INVALID: "sync_polling_backoff_order_invalid";
};
export type SyncPollingErrorCode = (typeof SYNC_POLLING_ERROR_CODES)[keyof typeof SYNC_POLLING_ERROR_CODES];
/** Typed error for SyncPollingSupervisor option validation. */
export declare class PollingSupervisorOptionsError extends RangeError {
    readonly code: SyncPollingErrorCode;
    constructor(code: typeof SYNC_POLLING_ERROR_CODES.BACKOFF_ORDER_INVALID);
    constructor(code: typeof SYNC_POLLING_ERROR_CODES.POSITIVE_INTEGER_REQUIRED, label: string);
}
/** Stable failures raised while assembling or running the internal sync service. */
export declare const SYNC_SERVICE_ERROR_CODES: {
    readonly INVALID_OPTIONS: "invalid_sync_service_options";
    readonly INVALID_PROJECTION_CONFIG: "invalid_sync_projection_config";
    readonly PROVIDER_UNAVAILABLE: "sync_provider_unavailable";
    readonly STARTUP_FAILED: "sync_service_startup_failed";
    /** Existing-sheet adoption dry-run finished; the full report rides on the error. */
    readonly ADOPTION_DRY_RUN_REPORT: "existing_sheet_adoption_dry_run_report";
    /**
     * Adoption seeding refused: observed cell kinds would be quarantined by the
     * first polling pass (e.g. a numeric sheet column bound to a string
     * property). Fail-closed BEFORE any SQLite state is written (design §11
     * finding; Terra-promoted follow-up).
     */
    readonly ADOPTION_CELL_KIND_MISMATCH: "existing_sheet_adoption_cell_kind_mismatch";
};
export type SyncServiceErrorCode = (typeof SYNC_SERVICE_ERROR_CODES)[keyof typeof SYNC_SERVICE_ERROR_CODES];
/** Internal service error; never re-exported from the root public API. */
export declare class SyncServiceError extends CoreErrorException<"application.sync_service", SyncServiceErrorCode> {
    constructor(code: SyncServiceErrorCode, message: string);
}
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