Globales Vue-Fehlerbehandlungsmuster mit Circuit-Breaker-Resilienz

export function createResilientErrorHandler(threshold = 3, resetTimeoutMs = 10000) {
  let failureCount = 0;
  let circuitOpen = false;
 
  return (err, instance, info) => {
    if (circuitOpen) {
      console.warn('Circuit breaker open. Suppressing downstream telemetry.');
      return;
    }
 
    failureCount++;
    console.error(`[Vue Error Boundary] Source: ${info}`, err);
 
    if (failureCount >= threshold) {
      circuitOpen = true;
      setTimeout(() => {
        failureCount = 0;
        circuitOpen = false;
      }, resetTimeoutMs);
    }
  };
}