/**
 * loadRunner.ts — Continuous Nori bridge load generator
 *
 * Long-running script that mimics N users repeatedly exercising the
 * bridge (Ethereum lock → Mina mint) to stress-test WSS, worker
 * lifecycle, and the 32-root deposit window on mesa-testnet.
 *
 * Per flow:
 *   - Fresh TokenBridgeWorker (spawned and signalTerminate'd each run).
 *   - Dedicated WSS connection per user (not shared).
 *   - Full flow mirrors minimal-client/src/index.spec.ts.
 *   - Randomised post-canMint delay (see pickClaimDelayUpdates).
 *
 * Minimal env:
 *   ETH_RPC_URL=https://sepolia.infura.io/v3/<key>
 *   LOAD_USER_ETH_PRIV_KEYS=0x<key1>,0x<key2>,0x<key3>
 *   LOAD_USER_MINA_PRIV_KEYS=EKE<key1>,EKE<key2>,EKE<key3>
 *
 * Common optional env:
 *   LOAD_USER_LABELS=alice,bob,carol
 *   LOAD_LOCK_AMOUNTS_ETH=0.0001
 *   LOAD_BASE_TICK_MINUTES=2
 *   LOAD_MAX_CONCURRENT=2
 *   LOAD_MAX_CONCURRENT_COMPILES=5
 *   LOAD_PER_USER_COOLDOWN_MINUTES=5
 *   LOAD_MINT_GATE_TIMEOUT_MINUTES=120
 *   LOAD_LOG_DIR=./logs/loadRunner
 *
 * See parseEnv() for the full list and defaults.
 *
 * Logs under LOAD_LOG_DIR:
 *   loadRunner.log            — scheduler decisions + user state transitions
 *   loadRunner.<label>.log    — per-user stage log
 *   loadRunner.summary.jsonl  — one JSON line per completed flow
 *   stdout                    — everything + live bridge observer
 *
 * Shutdown: SIGINT/SIGTERM = immediate exit (in-flight flows NOT drained).
 */
import 'dotenv/config';
export type ObserverSnapshot = {
    wsState: string;
    latestBridge: {
        stage_name: string;
        input_slot: number | string;
        output_slot: number | string;
        elapsed_sec: number | string;
    } | null;
    latestEth: {
        latest_finality_slot: number | string;
        latest_finality_block_number: number | string;
    } | null;
    lastBridgeAt: number;
    lastEthAt: number;
};