Stealth Transfers

The stealth (confidential transfer) documentation now lives in its own top-level section:

• Stealth overview — the canonical four-step flow + the view-secret concept + a per-page guide map.
• Receiving stealth outputs — decryptOwnedUtxo, scanning for owned UTXOs.
• Sending stealth outputs — StealthTransfer builder, revealed vs stealth in/out.
• Spending stealth UTXOs — spending a stealth UTXO end-to-end.

For ready-to-run end-to-end examples, see examples/node/src/stealth/.