Raise Arbitrum Contract Size Limit to 64kb

EIP-7907 was rejected; EIP-7954 proposes raising Arbitrum’s contract size limit from 24kb to 32kb for Glamsterdam inclusion. A further plan aims for 64kb deployed code and 128kb init code, enhancing developer experience while retaining 100% mainnet compatibility. Competing chains MegaETH and RISE already test larger limits. Implementation requires social consensus, arbOS upgrade, and DAO ratification. Feedback invited.