feat(wasm-utxo): add PSBT serialize/finalize/extract functionality #64
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Implement PSBT serialization, finalization, and transaction extraction capabilities in BitGoPsbt class. These methods enable complete transaction workflow: - `serialize()` - Convert PSBT to binary format - `finalizeAllInputs()` - Complete all inputs with signatures - `extractTransaction()` - Get final signed transaction bytes Added tests to verify round-trip serialization and transaction extraction. Issue: BTC-2786 Co-authored-by: llm-git <llm-git@ttll.de>
davidkaplanbitgo
approved these changes
Nov 20, 2025
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Implement PSBT serialization, finalization, and transaction extraction
capabilities in BitGoPsbt class. These methods enable complete transaction
workflow:
serialize()- Convert PSBT to binary formatfinalizeAllInputs()- Complete all inputs with signaturesextractTransaction()- Get final signed transaction bytesAdded tests to verify round-trip serialization and transaction extraction.
BTC-2786