fix(news): persist publication requests and retry cache delivery

src/lib/services/news-cache.ts

@@ -30,3 +30,11 @@ export async function invalidateNewsCache(): Promise<void> {
 		});
 	}
 }
+
+/** Worker delivery must fail visibly so the outbox can retry the invalidation. */
+export async function refreshNewsCacheForDelivery(): Promise<void> {
+	if (!redis) return;
+	if (redis.status === "end")
+		throw new Error("News cache connection is closed");
+	await redis.set(REVISION_KEY, randomUUID());
+}