declare global {
    interface DynamicCoreState {
        /**
         * Coalesces concurrent `fetchAndStoreNonces` calls into a single network
         * request and promise. Null when no refill is in flight.
         *
         * The nonce pool itself is not part of core state: it lives exclusively
         * in storage (see `noncePoolStorage`) because nonces are single-use
         * server-side and any in-memory replica can go stale and re-serve a
         * consumed nonce.
         */
        nonceFetchInFlight: Promise<void> | null;
    }
}
export {};
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