Child Inscription Skill Creates parent-child Ordinals inscriptions per the Ordinals provenance spec. The inscription owner spends the parent UTXO in the reveal transaction, embedding a pointer that establishes on-chain provenance for the child. - estimate — Read-only fee calculation, no wallet required. - inscribe — Step 1 commit transaction, requires an unlocked wallet with BTC. - reveal — Step 2 reveal transaction, requires the commit tx to be confirmed. Usage Subcommands estimate Calculate the total cost (commit fee + reveal amount) for a child inscription without broadcasting anything. Op…