EIP-8151: restrict ecRecover by account code
(colinlyguo), submitted and merged: applies EIP-3607's account code restriction to `ecRecover` while preserving the EIP-7702 delegation exception. It complements account migration paths such as EIP-7851 and EIP-8298 by extending protocol-level ECDSA restrictions to `ecRecover`, protecting immutable contracts when accounts move to code-controlled authorization, including post-quantum schemes.
