Replace the separate `image-studio` / `video-studio` / `comfyui` scenes with
a single `ai-studio` scene: ComfyUI holds both GPUs always, and image / video /
audio are picked as *lanes* in OWUI rather than gpu-mode switches. Removes the
gemma-12b chat brain from the studio bundle (kept on disk, just unwired) and
points OWUI's DEFAULT_MODELS at the qwen director.
- gpu-mode.sh: `mode_ai_studio` replaces the two studio modes; drop the gemma
start/stop + the GPU0-pin split; preflight now reads the shared manifest.
- scripts/lib/studio-models.tsv: single source-of-truth model manifest (modality,
label, root, rel_path, size, installer) consumed by both gpu-mode preflight and
the c3 cockpit, so the two can't drift.
- download_{director,video,audio,ace_step,stable_audio,studio}_models.sh: idempotent
fetchers; download_studio_models.sh orchestrates "grab everything".
- setup-video-studio.sh + repointed setup-image-studio.sh → `gpu-mode ai-studio`.
- litellm: drop the gemma-4-12b :8069 route; comfyui compose/entrypoint GPU-pin
comments corrected (no scene sets the pin now).
Co-Authored-By: Claude Opus 4.8 <[email protected]>
Claude-Session: https://claude.ai/code/session_01EfF565T9eSLaqGzidyJ1Pm
