Dashboard layout overhaul + fix Tremor chart colors and tooltips

- Restructure dashboard: score distribution + recently reviewed stacked in left column,
  full-width map at bottom, activity feed in middle row
- Show all jurors in scrollable workload list (not just top 5)
- Filter recently reviewed to exclude rejected/not-reviewed projects
- Filter transition audit logs from activity feed
- Remove completion progress bar from stat tile for equal card heights
- Fix all Tremor charts: switch hex colors to named palette (cyan/teal/emerald/amber/rose)
  to fix black bar rendering
- Fix transparent chart tooltips with global CSS overrides
- Remove tilted text labels from cross-round comparison charts

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/components/charts/diversity-metrics.tsx

@@ -3,7 +3,7 @@
 import { DonutChart, BarChart } from '@tremor/react'
 import { Card, CardContent, CardHeader, CardTitle } from '@/components/ui/card'
 import { Badge } from '@/components/ui/badge'
-import { BRAND_COLORS } from './chart-theme'
+import { TREMOR_CHART_COLORS } from './chart-theme'
 
 interface DiversityData {
   total: number
@@ -116,7 +116,7 @@ export function DiversityMetricsChart({ data }: DiversityMetricsProps) {
                 data={donutData}
                 category="value"
                 index="name"
-                colors={[...BRAND_COLORS] as string[]}
+                colors={[...TREMOR_CHART_COLORS]}
                 className="h-[400px]"
               />
             ) : (
@@ -136,7 +136,7 @@ export function DiversityMetricsChart({ data }: DiversityMetricsProps) {
                 data={categoryData}
                 index="category"
                 categories={['Count']}
-                colors={[BRAND_COLORS[0]] as string[]}
+                colors={['cyan']}
                 layout="horizontal"
                 yAxisWidth={120}
                 showLegend={false}
@@ -160,7 +160,7 @@ export function DiversityMetricsChart({ data }: DiversityMetricsProps) {
               data={oceanIssueData}
               index="issue"
               categories={['Count']}
-              colors={[BRAND_COLORS[2]] as string[]}
+              colors={['teal']}
               showLegend={false}
               yAxisWidth={40}
               className="h-[400px]"