Task 79796613678

build: add optional `SECP256K1_BACKEND=ultrafast` secondary secp256k1 backend

2026-06-05 19:06:48 completed feature/ultrafast-secp256k1-backend 424e99fa4d5ba79cfd7c2d783956199c2e60027b


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  • feature/ultrafast-secp256k1-backend
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