Prioritize growth retries and randomize intake

tests/web/growth-route.test.ts

@@ -276,6 +276,34 @@ describe('growth route', () => {
     });
   });
 
+  describe('DELETE /api/growth/:accountId/queue', () => {
+    it('clears queued and retryable items without deleting posted history', async () => {
+      repo.enqueueDiscovered(ACCOUNT, [
+        thread('queued'),
+        { ...thread('posted'), created_utc: 1_800_000 },
+      ], 1_000);
+      repo.claimNext(ACCOUNT, 'worker', 60_000, 1_000);
+      repo.markPosted(ACCOUNT, 'posted', 'worker', {
+        generatedComment: 'A posted comment',
+        modelId: 'model',
+        commentFullname: 't1_posted',
+        commentPermalink: null,
+        nextVerifyAt: 5_000,
+      }, 2_000);
+
+      const { status, json } = await call(app, 'DELETE', `/api/growth/${ENCODED}/queue`);
+
+      expect(status).toBe(200);
+      expect(json).toMatchObject({ success: true, cleared: 1 });
+      expect(repo.get(ACCOUNT, 'queued')).toBeNull();
+      expect(repo.get(ACCOUNT, 'posted')?.status).toBe('posted');
+      expect(pushed).toContainEqual({
+        level: 'warn',
+        message: 'Cleared 1 pending growth item(s) for u/grower',
+      });
+    });
+  });
+
   describe('subreddit list', () => {
     it('adds a community and returns 201', async () => {
       const { status, json } = await call(app, 'POST', `/api/growth/${ENCODED}/subreddits`, {