====== models.py ======

Defines message structures and hashing logic.

This module provides:

  * message builders
  * validation helpers
  * canonical message serialization
  * SHA256 hashing

-----

===== Example =====

<code python>
from robinnet.models import build_bulletin

msg = build_bulletin(
  origin_node_uuid="node-uuid",
  origin_node_name="alpha",
  title="Test",
  body="Hello world"
)
</code>