This PR addresses several UI/UX and architectural refinements for the Knowledge Graph and Intelligence Sidebar.
### Key Changes:
- **Knowledge Graph (#21, #22)**:
- Implemented \"pill-shaped\" nodes with dynamic label truncation and SVG tooltips.
- Added bound-constrained simulation to keep nodes within the viewport.
- Integrated `ResizeObserver` for dynamic layout handling.
- Implemented Zoom-to-Fit functionality.
- Enforced unique concept IDs in AI prompts and hardened JS logic to prevent multi-selection bugs.
- **Intelligence Sidebar (#23)**:
- Improved visual depth with a radial gradient background for the graph.
- Increased sidebar divider contrast for better layering.
- Transformed graph controls into a floating glassmorphism panel.
- Relocated the \"Logout\" action to the toolbar bottom and rebranded it as \"Exit\".
Fixes#21Fixes#22Fixes#23
Reviewed-on: #25
Co-authored-by: Marek Jasiński <jasins.marek@gmail.com>
Co-committed-by: Marek Jasiński <jasins.marek@gmail.com>
mjasin
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