====== db.py ======

Database layer responsible for all SQLite storage.

This module handles:

  * node identity
  * message storage
  * peer storage
  * trace logging
  * synchronization tracking

-----

===== Example =====

<code python>
from robinnet.db import RobinDB

db = RobinDB("./data/node.db")

db.init_db()
</code>

-----

===== Common Operations =====

Initialize database:

<code python>
db.init_db()
</code>

Get node information:

<code python>
node = db.get_node_info()
</code>

List messages:

<code python>
messages = db.list_messages()
</code>