Base: MetaMask EOA Wallet Support Query

@0xRyze flagged a friction point in Base's new Account and Verify flow on verify.base.dev, where users with long-standing MetaMask EOA wallets created via secret recovery phrases cannot connect or verify without switching to a Gmail-based Coinbase account, raising questions around Base account abstraction EOA wallet support and Base Verify flow MetaMask integration history for early adopters who want to link wallets without erasing onchain activity.