KarpelesLab / outscript / 29683338784

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tron: add Tron address and transaction support

Add Tron address generation (secp256k1 keccak account hash, 0x41 prefix,
Base58Check) via a new "tron" script format, plus EncodeTronAddress,
DecodeTronAddress and ParseTronAddress helpers.

Add TronTx with a minimal hand-rolled protobuf encoder (no new deps):
native TRX transfers (TransferContract), smart-contract calls
(TriggerSmartContract), and a TRC20 convenience helper for token
transfers such as USDT. Transactions are signed with secp256k1 (65-byte
recoverable signatures) and expose SignerAddresses for recovery.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

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