- Heatmap matrix: pillar × market colour-coded table in Compare tab
- Radar/spider chart: pure SVG chart in entity detail view
- Sort controls: sort by overall score, pillar, or group on Markets tab
- Group toggle: cluster entity cards by group (Leroy Merlin / Obramat etc.)
- About tab: home screen tab explaining scoring levels, pillars, and features
- /api/clients now returns pillars, scoring, about for About tab rendering
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>