refactor: centralize unhandled rejection setup

src/infra/bonjour-ciao.ts

@@ -0,0 +1,14 @@
+import { logDebug } from "../logger.js";
+
+import { formatBonjourError } from "./bonjour-errors.js";
+
+export function ignoreCiaoCancellationRejection(reason: unknown): boolean {
+  const message = formatBonjourError(reason).toUpperCase();
+  if (!message.includes("CIAO ANNOUNCEMENT CANCELLED")) {
+    return false;
+  }
+  logDebug(
+    `bonjour: ignoring unhandled ciao rejection: ${formatBonjourError(reason)}`,
+  );
+  return true;
+}