feat: configure ready outreach funnel limit

tests/candidate-queue.test.ts

@@ -119,7 +119,7 @@ describe('CandidateQueueRepository', () => {
     queue.deferDelivery('p1', 'send-a', 'Matrix rate limited', 1_100, 1_004);
 
     expect(queue.claimReady('account-b', 'send-b', 100, 1_099)).toBeNull();
-    expect(queue.promoteDueRetries(1_100)).toBe(1);
+    expect(queue.promoteDueRetries(25, 1_100)).toBe(1);
     expect(queue.claimReady('account-b', 'send-b', 100, 1_101)).toMatchObject({
       postId: 'p1',
       assignedAccountId: 'account-b',