Training and distillation workflows reference missing scripts

[blacks1ne]

Summary

The desktop and CLI expose distillation/codebook workflows whose required scripts/* helpers are absent from this repository.

Evidence

• job_distill resolves and launches scripts/distill_from_sdxl.py.
• image-training/sample help references helpers such as build_codebook.py and vqvae_decode.py.
• this checkout contains no scripts/ directory.

Users can configure controls that are guaranteed to fail path resolution, and the repository does not provide the advertised preprocessing path for constructing the manifest/codebook.

Proposed resolution

Choose one:

1. restore the scripts with pinned dependencies, usage documentation, and smoke tests; or
2. hide/disable these controls and explicitly document the manifest/codebook as externally prepared inputs.

Acceptance criteria

• Every visible workflow either has all in-repo prerequisites or clearly reports that it is external/unavailable before launching.
• CI contains at least a --help/import smoke test if the scripts are restored.
• README and CLI help no longer point to nonexistent paths.