Add support for TRPC and MQTT

[Rednas83]

Are there any plans (or interest) in expanding h3's ecosystem to support additional communication protocols, or to provide guidance on integrating them?

Specifically:
tRPC To enable fully type-safe RPC communication between frontend and backend (especially in Nuxt/Nitro contexts).
MQTT For real-time, event-driven communication, commonly used in IoT or pub/sub scenarios.

[faner11]

Looking forward to tRPC