Filtering UX: overview results, auto-clear on re-run, config save fix

- Add filtering results summary card on round Overview tab with pass/fail/flag
  counts and color-coded progress bar (polls every 5s)
- Auto-delete previous filtering results when re-running so new ones stream in
- Rename BUSINESS_CONCEPT to "Concept" in filtering results to prevent overflow
- Fix config save race condition where toggling switches (aiParseFiles, advance
  counts) would revert: pendingSaveRef cleared before refetch completed

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

src/app/(admin)/admin/rounds/[roundId]/page.tsx

@@ -233,6 +233,12 @@ export default function RoundDetailPage() {
   )
   const roundAwards = awards?.filter((a) => a.evaluationRoundId === roundId) ?? []
 
+  // Filtering results stats (only for FILTERING rounds)
+  const { data: filteringStats } = trpc.filtering.getResultStats.useQuery(
+    { roundId },
+    { enabled: round?.roundType === 'FILTERING', refetchInterval: 5_000 },
+  )
+
   // Sync config from server when no pending save
   if (round && !pendingSaveRef.current) {
     const roundConfig = (round.configJson as Record<string, unknown>) ?? {}
@@ -245,8 +251,12 @@ export default function RoundDetailPage() {
   const updateMutation = trpc.round.update.useMutation({
     onSuccess: () => {
       utils.round.getById.invalidate({ id: roundId })
-      pendingSaveRef.current = false
       setAutosaveStatus('saved')
+      // Keep pendingSaveRef locked briefly so the sync block doesn't
+      // overwrite local config with stale cache before refetch completes
+      setTimeout(() => {
+        pendingSaveRef.current = false
+      }, 500)
       setTimeout(() => setAutosaveStatus('idle'), 2000)
     },
     onError: (err) => {
@@ -866,8 +876,81 @@ export default function RoundDetailPage() {
             </Card>
           </AnimatedCard>
 
+          {/* Filtering Results Summary — only for FILTERING rounds with results */}
+          {isFiltering && filteringStats && filteringStats.total > 0 && (
+            <AnimatedCard index={1}>
+              <Card className="border-l-4 border-l-purple-500">
+                <CardHeader className="pb-3">
+                  <div className="flex items-center justify-between">
+                    <div className="flex items-center gap-3">
+                      <div className="rounded-full bg-purple-50 p-2">
+                        <Shield className="h-5 w-5 text-purple-600" />
+                      </div>
+                      <div>
+                        <CardTitle className="text-base">Filtering Results</CardTitle>
+                        <CardDescription>
+                          {filteringStats.total} projects evaluated
+                        </CardDescription>
+                      </div>
+                    </div>
+                    <Button
+                      size="sm"
+                      variant="outline"
+                      onClick={() => setActiveTab('filtering')}
+                    >
+                      View Details
+                      <ArrowRight className="h-3.5 w-3.5 ml-1.5" />
+                    </Button>
+                  </div>
+                </CardHeader>
+                <CardContent>
+                  <div className="grid grid-cols-3 gap-4 mb-4">
+                    <div className="text-center p-3 rounded-lg bg-emerald-50">
+                      <p className="text-2xl font-bold text-emerald-700">{filteringStats.passed}</p>
+                      <p className="text-xs text-emerald-600 font-medium">Passed</p>
+                    </div>
+                    <div className="text-center p-3 rounded-lg bg-red-50">
+                      <p className="text-2xl font-bold text-red-700">{filteringStats.filteredOut}</p>
+                      <p className="text-xs text-red-600 font-medium">Filtered Out</p>
+                    </div>
+                    <div className="text-center p-3 rounded-lg bg-amber-50">
+                      <p className="text-2xl font-bold text-amber-700">{filteringStats.flagged}</p>
+                      <p className="text-xs text-amber-600 font-medium">Flagged</p>
+                    </div>
+                  </div>
+                  {/* Progress bar showing pass rate */}
+                  <div className="space-y-1.5">
+                    <div className="flex justify-between text-xs text-muted-foreground">
+                      <span>Pass rate</span>
+                      <span>{Math.round((filteringStats.passed / filteringStats.total) * 100)}%</span>
+                    </div>
+                    <div className="h-2.5 rounded-full bg-muted overflow-hidden flex">
+                      <div
+                        className="bg-emerald-500 transition-all duration-500"
+                        style={{ width: `${(filteringStats.passed / filteringStats.total) * 100}%` }}
+                      />
+                      <div
+                        className="bg-red-400 transition-all duration-500"
+                        style={{ width: `${(filteringStats.filteredOut / filteringStats.total) * 100}%` }}
+                      />
+                      <div
+                        className="bg-amber-400 transition-all duration-500"
+                        style={{ width: `${(filteringStats.flagged / filteringStats.total) * 100}%` }}
+                      />
+                    </div>
+                    {filteringStats.overridden > 0 && (
+                      <p className="text-xs text-muted-foreground">
+                        {filteringStats.overridden} result(s) manually overridden
+                      </p>
+                    )}
+                  </div>
+                </CardContent>
+              </Card>
+            </AnimatedCard>
+          )}
+
           {/* Quick Actions — Grouped & styled */}
-          <AnimatedCard index={1}>
+          <AnimatedCard index={2}>
             <Card>
               <CardHeader>
                 <CardTitle className="text-base">Quick Actions</CardTitle>