feat: creative tools suite — 7 tools in unified canvas toolbar
- Delete rProviders module (unused)
- Add hidden flag to module system, hide rSplat from app switcher
- Add fal.ai API proxies: image-gen (Flux Pro), video-gen t2v (WAN 2.1), i2v (Kling)
- New canvas shapes: folk-splat (3D viewer), folk-blender (3D gen), folk-drawfast (freehand drawing), folk-freecad (parametric CAD), folk-kicad (PCB design)
- Restructure canvas toolbar: new "Creative" group with all 7 tools, reduced "Media" group
- Add blender-gen, kicad, freecad REST-to-MCP bridge endpoints
- Fix standalone domain navigation to rspace.online landing pages
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>