feat: update delayed task processing to a shared 9-hour maximum delay, remove invalid KV entries

src/libs/tasks/queueTask.ts

@@ -30,6 +30,10 @@ interface QueueTaskOptionalArgs {
   env?: Cloudflare.Env;
 }
 
+export const MAX_DELAY_SECONDS = Duration.fromObject({ hours: 9 }).as(
+  "seconds",
+);
+
 export async function queueTask(
   queueName: QueueName,
   body: QueueBody[QueueName],
@@ -42,8 +46,6 @@ export async function queueTask(
     req?.header(),
   );
 
-  const MAX_DELAY_SECONDS = Duration.fromObject({ hours: 9 }).as("seconds");
-
   // If delay exceeds 9 hours, store in KV for later processing
   if (scheduleTime > MAX_DELAY_SECONDS) {
     if (!env || !env.DELAYED_TASKS) {