fix: close durable queue and runtime gaps

packages/queue/test/queue.test.ts

@@ -260,6 +260,21 @@ test("durable queue supports capacity, cancellation, and shutdown", async () =>
   await expect(queue.add("work", {})).rejects.toThrow("WRN-QUEUE-CLOSED");
 });
 
+test("durable queue has no implicit capacity scan or 10k ceiling", async () => {
+  const base = memoryQueueStore();
+  let sizeCalls = 0;
+  const store = {
+    ...base,
+    async size() {
+      sizeCalls++;
+      return 10_001;
+    },
+  };
+  const queue = createDurableQueue({ store });
+  await expect(queue.add("work", {})).resolves.toMatchObject({ name: "work" });
+  expect(sizeCalls).toBe(0);
+});
+
 test("force shutdown aborts an active durable job", async () => {
   const store = memoryQueueStore();
   const queue = createDurableQueue({ store });