de5db25e3f
Pulled forward from the not-yet-mergeable condor-gpu-train-rollout branch: `new-run` resolves CLI hyperparameter overrides into a full config.toml and run dir (reusing the existing default_out_dir_name collision-avoidance and a newly factored-out router-override helper shared with `train`), so a run can be prepared and reviewed before `giant train` actually kicks off. Also brings README up to date with the model/CLI as it actually stands (physical/embedding conditioning, WGAN/MoE-router modes, giant analyze, W&B, setup-stage caching), which had drifted back to describing the Phase-1 proof-of-concept. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>