feat(abstract-utxo): add WASM-based PSBT signing #7690
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Implement WASM-based version of PSBT signing with MuSig2 support: - Create shared Musig2Participant interface in a separate file - Add signPsbtWasm.ts for WASM-based signing implementation - Support p2tr legacy, MuSig2 script path, and MuSig2 key path inputs - Maintain separate nonce caches for each backend Issue: BTC-2806 Co-authored-by: llm-git <llm-git@ttll.de>
OttoAllmendinger
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lcovar
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Dec 4, 2025
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Implement WASM-based version of PSBT signing with MuSig2 support:
BTC-2806