refactor: drive FINRA bulk ingest through existing queue_schedule system instead of cron

- Add finra-bulk case to enqueueDueSchedules() — queues a single
  finra-bulk:finraShortinterest:latest key per cycle
- Register default twice-monthly schedule (14-day interval) in seedDefaultSchedules()
- Removes need for any external cron; the existing 30s scheduler loop handles it

app/server/src/queue/AdapterQueue.ts

@@ -300,6 +300,8 @@ export class AdapterQueue implements CacheScheduler {
             await this.queue(`x:timeline:${a.handle}`);
           }
         }
+      } else if (s.source_kind === 'finra-bulk') {
+        await this.queue('finra-bulk:finraShortinterest:latest');
       }
       const nextEnqueue = new Date(Date.now() + s.interval_ms).toISOString();
       this._db.prepare("UPDATE queue_schedules SET last_enqueued=?, next_enqueue=? WHERE source_kind=?").run(now, nextEnqueue, s.source_kind);
@@ -315,6 +317,7 @@ export class AdapterQueue implements CacheScheduler {
       ['sec-lint-holders', 7 * 86400000],
       ['sec-lint-insiders', 7 * 86400000],
       ['x', 3600000],
+      ['finra-bulk', 14 * 86400000],
     ];
     const insert = this._db.prepare("INSERT OR IGNORE INTO queue_schedules (source_kind, interval_ms, last_enqueued, next_enqueue) VALUES (?,?,?,?)");
     for (const [kind, ms] of defaults) {