Propose Native Ethereum Delegation With Bond-Weighted Growth Caps

Ideas-stage proposal for Native Ethereum Delegation (NED), no EIP yet. Proposes protocol-level delegation domains with bond-backed capacity, capped growth via collateral. Linear constraints prevent identity-splitting gains. Original concentration-penalty and maturity mechanisms dropped post analysis. Open issues: protocol necessity, collateral basis, institutional advantage. Prior art: Rainbow Staking, eODS, Cardano CIP-50.