Studio 21:9 shots

Studio at /create/studio takes a scene from idea to finished clip in 8 steps:

1. Script — 2-3 sentences describing subject + action.
2. Reference — up to 5 moodboard images.
3. Rig — camera body × lens × focal length.
4. Preview — 4 × 21:9 Seedream stills (~24 credits).
5. Select — pick the hero frame.
6. Bridge — pick the driving video model.
7. Motion — camera-move preset.
8. Export — final image→video render.

The today-version already renders real previews and submits a real image→video job; M5.1 adds a canvas for drawing the exact camera path.