Lux VM interface for the Hanzo L2.

This crate implements the VM engine that plugs into a Lux subnet, wrapping EVM execution behind the Snow consensus interface.

Architecture

Lux Consensus
      |
  HanzoVm (this crate)
      |
  +---------+-----------+
  | StateDb | Precompiles |
  +---------+-----------+

• [vm::HanzoVm] -- main VM struct implementing [vm::VmEngine].
• [state::StateDb] -- account/storage persistence (SQLite for dev).
• [block::Block] -- block and transaction types.
• [precompiles::PrecompileRegistry] -- custom precompile contracts (PQ signatures, quasar queries, AI inference/embeddings).