perf: streamline repository and deployment awareness

tests/deployment-status.test.mjs

@@ -172,3 +172,22 @@ test('rollback refuses a stale target that is no longer the server-reported prev
   assert.equal(dispatched, false);
 });
 
+test('active deployment refreshes run concurrently with a bounded worker pool', async () => {
+  const operations = Array.from({ length: 9 }, (_, index) => ({ id: `operation-${index}`, type: 'deployment', status: 'running' }));
+  const service = new DeploymentService({ data: { operations } }, {}, {});
+  let running = 0;
+  let peak = 0;
+  service.refreshOperation = async (id) => {
+    running += 1;
+    peak = Math.max(peak, running);
+    await new Promise((resolve) => setTimeout(resolve, 10));
+    running -= 1;
+    return { id };
+  };
+
+  const refreshed = await service.refreshActiveOperations();
+  assert.equal(refreshed.length, operations.length);
+  assert.ok(peak > 1);
+  assert.ok(peak <= 4);
+});
+