recordOwnNode

Record the local node's NodeNum and firmware version.

Factory-reset detection: This is called immediately after handshake with the value from MyNodeInfo.my_node_num. The implementation must:

1. On first call for an identity: store the tuple (nodeNum, firmwareVersion).

2. On subsequent calls: if nodeNum differs from the stored value:

• Atomically call clear and then persist the new tuple before returning.

• This signals to the engine that storage was cleared; the engine rebuilds MeshState from the fresh handshake payload (no stale NodeDB rows).

3. If nodeNum matches: no action; return normally.

Parameters

Throws