Replace the bulky side panel (290-340px wide) with a compact floating toolbar at the bottom center of the viewer, maximizing the model viewing area.
New toolbar components:
- FloatingToolbar.vue: Main container with all controls
- ToolbarButton.vue: Reusable icon button with active state
- ToolbarPopup.vue: Reusable popup with click-outside close
- RenderModeSelector.vue: 3-segment render mode control
- ExplodePopup.vue: Explosion settings popup
- SectionPopup.vue: Cross-section settings popup
- RenderPopup.vue: Material and lighting settings popup
Toolbar features:
- Direct controls: Render mode, edge lines toggle, auto-color toggle
- Popup controls: Explode (click for animation), section, render settings
- Screenshot button with preview modal
Removed old components:
- FeaturePanel.vue, ExplodedView.vue, CrossSection.vue
- RenderSettings.vue, ThumbnailCapture.vue
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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