// cloudflare queues
//
// producers write messages → the queue buffers them
// consumers read in batches → async, decoupled
//
// contrast with the guestbook (durable objects):
//   guestbook: real-time websocket, stateful DO instance
//   this board: async queue, eventual delivery
//
// each shout you post travels:
//   [your browser] → POST /api/queue/submit
//                 → queue worker stores as "pending"
//                 → sends to deank-queue (Cloudflare Queue)
//                 → queue consumer wakes up (within ~5s)
//                 → marks item "processed" in the DO
//                 → appears on the board below