Admin dashboard & round management UX overhaul

- Extract round detail monolith (2900→600 lines) into 13 standalone components
- Add shared round/status config (round-config.ts) replacing 4 local copies
- Delete 12 legacy competition-scoped pages, merge project pool into projects page
- Add round-type-specific dashboard stat panels (submission, mentoring, live final, deliberation, summary)
- Add contextual header quick actions based on active round type
- Improve pipeline visualization: progress bars, checkmarks, chevron connectors, overflow fix
- Add config tab completion dots (green/amber/red) and inline validation warnings
- Enhance juries page with round assignments, member avatars, and cap mode badges
- Add context-aware project list (recent submissions vs active evaluations)
- Move competition settings into Manage Editions page

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

src/components/admin/round/score-distribution.tsx

@@ -0,0 +1,64 @@
+'use client'
+
+import { useMemo } from 'react'
+import { trpc } from '@/lib/trpc/client'
+import { cn } from '@/lib/utils'
+import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card'
+import { Skeleton } from '@/components/ui/skeleton'
+
+export type ScoreDistributionProps = {
+  roundId: string
+}
+
+export function ScoreDistribution({ roundId }: ScoreDistributionProps) {
+  const { data: dist, isLoading } = trpc.analytics.getRoundScoreDistribution.useQuery(
+    { roundId },
+    { refetchInterval: 15_000 },
+  )
+
+  const maxCount = useMemo(() =>
+    dist ? Math.max(...dist.globalDistribution.map((b) => b.count), 1) : 1,
+  [dist])
+
+  return (
+    <Card>
+      <CardHeader>
+        <CardTitle className="text-base">Score Distribution</CardTitle>
+        <CardDescription>
+          {dist ? `${dist.totalEvaluations} evaluations \u2014 avg ${dist.averageGlobalScore.toFixed(1)}` : 'Loading...'}
+        </CardDescription>
+      </CardHeader>
+      <CardContent>
+        {isLoading ? (
+          <div className="flex items-end gap-1 h-32">
+            {Array.from({ length: 10 }).map((_, i) => <Skeleton key={i} className="flex-1 h-full" />)}
+          </div>
+        ) : !dist || dist.totalEvaluations === 0 ? (
+          <p className="text-sm text-muted-foreground text-center py-6">
+            No evaluations submitted yet
+          </p>
+        ) : (
+          <div className="flex gap-1 h-32">
+            {dist.globalDistribution.map((bucket) => {
+              const heightPct = (bucket.count / maxCount) * 100
+              return (
+                <div key={bucket.score} className="flex-1 flex flex-col items-center gap-1 h-full">
+                  <span className="text-[9px] text-muted-foreground">{bucket.count || ''}</span>
+                  <div className="w-full flex-1 relative">
+                    <div className={cn(
+                      'absolute inset-x-0 bottom-0 rounded-t transition-all',
+                      bucket.score <= 3 ? 'bg-red-400' :
+                      bucket.score <= 6 ? 'bg-amber-400' :
+                      'bg-emerald-400',
+                    )} style={{ height: `${Math.max(heightPct, 4)}%` }} />
+                  </div>
+                  <span className="text-[10px] text-muted-foreground">{bucket.score}</span>
+                </div>
+              )
+            })}
+          </div>
+        )}
+      </CardContent>
+    </Card>
+  )
+}