Replaced the 18-column inline cell editing with an expandable detail row:
- Display row always visible (no more disappearing content on edit)
- Edit form opens BELOW in a full-width colSpan row with accent border
- Fields organized in a 4-column grid with proper labels:
Row 1: Name, Renderer, Format, Animation
Row 2: Turntable, Background, Device, Engine
Row 3: Samples, Resolution, Pricing, Workflow
Row 4: Categories, Material Override, Sort Order, Active
Row 5: Denoising settings (6 cols, Blender only)
- Shared renderEditFormGrid() helper for both edit and add modes
- Save/Cancel buttons at bottom of form
- React.Fragment wrappers for dual-row rendering
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>