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/app/globals.css

@@ -294,3 +294,22 @@
     background: hsl(var(--muted-foreground) / 0.5);
   }
 }
+
+/* Tremor chart tooltip fix — ensure solid background */
+[class*="tremor-"] [role="tooltip"],
+.recharts-tooltip-wrapper .recharts-default-tooltip,
+div[class*="tremor"][class*="tooltip"],
+div[class*="recharts-tooltip"] {
+  background-color: hsl(var(--card)) !important;
+  border: 1px solid hsl(var(--border)) !important;
+  border-radius: 0.5rem !important;
+  box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1) !important;
+  opacity: 1 !important;
+}
+
+.dark div[class*="tremor"][class*="tooltip"],
+.dark .recharts-tooltip-wrapper .recharts-default-tooltip,
+.dark div[class*="recharts-tooltip"] {
+  background-color: hsl(var(--card)) !important;
+  border-color: hsl(var(--border)) !important;
+}