feat(example-iot-telemetry): configure AMQP RabbitMQ broker with concurrent worker consumers

[crapougnax]

Part of parent story #41.

🎯 Goal

Implement asynchronous queue dispatching and concurrent worker listeners for high-frequency sensor frame ingestion.

📋 Specification

1. Configure @quatrain/queue-amqp:
   • Register AmqpQueueAdapter via Queue.addQueue(rabbitQueue, 'amqp', true).
   • Setup auto-reconnection and channel recovery parameters.
2. Ingestion Controller:
   • Receive HTTP webhook payloads from LoRaWAN network server (ChirpStack) or cellular gateway.
   • Enqueue frames instantly onto RabbitMQ topic 'sensor-frames' with sub-10ms response time.
3. Background Worker:
   • Worker listener with queue.listen('sensor-frames', handler, { concurrency: 10 }).
   • Parse payloads, persist metrics, and evaluate alert triggers.
4. Protect ingestion endpoints against flooding using @quatrain/auth-rbac TarpitManager.