RL Example Artifacts

This umbrella collects the editor-side RL artifact viewers.

The executable trainers live under NN.Examples.Models because they are runnable model/training examples:

• lake exe torchlean ppo_gridworld
• lake exe torchlean ppo_cartpole
• lake exe torchlean ppo_pong_ram
• lake exe torchlean dqn_replay

The files under NN/Examples/RL are the companion layer: widget viewers, Python Gymnasium boundary helpers, and rollout exporters. Keeping that split prevents the example tree from having two competing PPO implementations while still making RL artifacts easy to inspect.