Devnet4 Phase 2: dual-key KeyManager and block proposal flow#231

Draft

pablodeymo wants to merge 2 commits intodevnet4from

devnet4-phase2-proposal

Commits on Mar 16, 2026

Devnet4 types: dual-key Validator, SignedBlock, genesis config format
pablodeymo
committed
Devnet4 key manager and block proposal: dual keys, sign block root
pablodeymo
committed