Advanced MVP Roadmap and Architecture (for internal contributors)

- Local primitives: LocalDevicePlan, SharedSignal, PlanDelta, DualVariables
- ADMM-lite coordinator: Async, deterministic on reconnects
- Adapters: StreetLightAdapter, EVChargingAdapter
- Contract registry: minimal, extensible
- Transport: TLS-simulated
- Global constraints: plug-in layer (not yet implemented in this MVP)
- Simulation: CitySimulator (placeholder for Gazebo/ROS integration)

This file is for internal planning only.