Top up someone ELSE's tank. Returns the instructions for one gift — the recipient tank's deposit wallet + token account, a memo nonce, the $ROKHA amount for usd at the live price. Nothing moves here: sign ONE transferChecked of amount_base into deposit_token_account with the memo from your OWN wallet, then POST {to, signature} to /api/fuel/gift/verify. The $ROKHA lands in their balance as DONATED: the builder spends it on Rokha's models (at the model's cost + Rokha's fee; the fee part burns) and nobody can withdraw it — a balance is spend-only. Gifts never touch the Attention score. Refuses your own tank (self_gift), a blocked account, no claimed page, or no tank yet (no_tank). usd 0.25–10,000. A JWT, when present, labels the gift; it is not required.