DustInitialUtxo
data class DustInitialUtxo(val eventId: Long, val rawHex: String, val blockHeight: Long?, val timestamp: Long?) : DustEvent
New dust UTXO registered (Night → Dust registration).
When this occurs:
User creates DustRegistration transaction
Night UTXO is locked for dust generation
Dust starts accumulating over time
State Update:
Adds new dust UTXO to DustLocalState
Sets initial value (usually 0)
Records Night backing info