Function loadCircuitBreakerPolicy

Returns {
    backpressure: {
        degradeOnExceed: boolean;
        maxPendingWrites: number;
        maxQueueLatencyMs: number;
    };
    deadLetter: {
        enabled: boolean;
        maxEntries: number;
        maxRetries: number;
        retryIntervalMs: number;
    };
    failureThreshold: number;
    globalTimeoutMs: number;
    halfOpenMaxAttempts: number;
    perHookTimeoutMs: number;
    recoveryWindowMs: number;
    schemaVersion: 1;
    watchdog: {
        checkIntervalMs: number;
        enabled: boolean;
        stuckSessionThresholdMs: number;
    };
}