precompile(secp256r1): align RIP-7212 with EIP-7951 specification#3012

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doocho wants to merge 2 commits intobluealloy:mainfrom

doocho:feat/eip-7951-secp256r1

Commits on Sep 26, 2025

precompile(secp256r1): align RIP-7212 with EIP-7951 (infinity check; canonical bounds; modular comparison via verifier); keep Osaka gas at 6900
doocho
committed
test(precompile/secp256r1): add EIP-7951 validation tests (infinity point, r/s bounds, qx/qy bounds, Osaka gas)
doocho
committed