- Remove sparklines from stat cards (redundant with main chart)
- Widen Y-axis to 40px, add allowDecimals=false for count metrics
- Move avg label from inside chart to toolbar badge
- Lighter grid lines, simpler gradient, thinner strokes
- Streamline toolbar: inline controls, icon-only export, no trailing separator
- Move live indicator from absolute to proper flow element
- Cleaner empty states without dashed border boxes
- Extract TrendBadge component, add tabular-nums for aligned numbers
641a3deebb