Competition/Round architecture: full platform rewrite (Phases 1-9)

Replace Pipeline/Stage system with Competition/Round architecture.
New schema: Competition, Round (7 types), JuryGroup, AssignmentPolicy,
ProjectRoundState, DeliberationSession, ResultLock, SubmissionWindow.
New services: round-engine, round-assignment, deliberation, result-lock,
submission-manager, competition-context, ai-prompt-guard.
Full admin/jury/applicant/mentor UI rewrite. AI prompt hardening with
structured prompts, retry logic, and injection detection. All legacy
pipeline/stage code removed. 4 new migrations + seed aligned.

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

src/components/jury/multi-window-doc-viewer.tsx

@@ -0,0 +1,145 @@
+'use client'
+
+import { trpc } from '@/lib/trpc/client'
+import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card'
+import { Tabs, TabsContent, TabsList, TabsTrigger } from '@/components/ui/tabs'
+import { Badge } from '@/components/ui/badge'
+import { Button } from '@/components/ui/button'
+import { Skeleton } from '@/components/ui/skeleton'
+import { FileText, Download, ExternalLink } from 'lucide-react'
+import { toast } from 'sonner'
+
+interface MultiWindowDocViewerProps {
+  roundId: string
+  projectId: string
+}
+
+function formatFileSize(bytes: number): string {
+  if (bytes === 0) return '0 B'
+  const k = 1024
+  const sizes = ['B', 'KB', 'MB', 'GB']
+  const i = Math.floor(Math.log(bytes) / Math.log(k))
+  return parseFloat((bytes / Math.pow(k, i)).toFixed(2)) + ' ' + sizes[i]
+}
+
+function getFileIcon(mimeType: string) {
+  if (mimeType.startsWith('image/')) return '🖼️'
+  if (mimeType.startsWith('video/')) return '🎥'
+  if (mimeType.includes('pdf')) return '📄'
+  if (mimeType.includes('word') || mimeType.includes('document')) return '📝'
+  if (mimeType.includes('sheet') || mimeType.includes('excel')) return '📊'
+  if (mimeType.includes('presentation') || mimeType.includes('powerpoint')) return '📊'
+  return '📎'
+}
+
+export function MultiWindowDocViewer({ roundId, projectId }: MultiWindowDocViewerProps) {
+  const { data: windows, isLoading } = trpc.round.getVisibleWindows.useQuery(
+    { roundId },
+    { enabled: !!roundId }
+  )
+
+  if (isLoading) {
+    return (
+      <Card>
+        <CardHeader>
+          <Skeleton className="h-6 w-48" />
+        </CardHeader>
+        <CardContent>
+          <Skeleton className="h-64" />
+        </CardContent>
+      </Card>
+    )
+  }
+
+  if (!windows || windows.length === 0) {
+    return (
+      <Card>
+        <CardHeader>
+          <CardTitle>Documents</CardTitle>
+          <CardDescription>Submission windows and uploaded files</CardDescription>
+        </CardHeader>
+        <CardContent className="text-center py-8">
+          <FileText className="h-12 w-12 text-muted-foreground/50 mx-auto mb-3" />
+          <p className="text-sm text-muted-foreground">No submission windows available</p>
+        </CardContent>
+      </Card>
+    )
+  }
+
+  return (
+    <Card>
+      <CardHeader>
+        <CardTitle>Documents</CardTitle>
+        <CardDescription>Files submitted across all windows</CardDescription>
+      </CardHeader>
+      <CardContent>
+        <Tabs defaultValue={windows[0]?.id || ''} className="w-full">
+          <TabsList className="w-full flex-wrap justify-start h-auto gap-1 bg-transparent p-0 mb-4">
+            {windows.map((window: any) => (
+              <TabsTrigger
+                key={window.id}
+                value={window.id}
+                className="data-[state=active]:bg-brand-blue data-[state=active]:text-white px-4 py-2 rounded-md text-sm"
+              >
+                {window.name}
+                {window.files && window.files.length > 0 && (
+                  <Badge variant="secondary" className="ml-2 text-xs">
+                    {window.files.length}
+                  </Badge>
+                )}
+              </TabsTrigger>
+            ))}
+          </TabsList>
+
+          {windows.map((window: any) => (
+            <TabsContent key={window.id} value={window.id} className="mt-0">
+              {!window.files || window.files.length === 0 ? (
+                <div className="text-center py-8 border border-dashed rounded-lg">
+                  <FileText className="h-10 w-10 text-muted-foreground/50 mx-auto mb-2" />
+                  <p className="text-sm text-muted-foreground">No files uploaded</p>
+                </div>
+              ) : (
+                <div className="grid gap-3 sm:grid-cols-2">
+                  {window.files.map((file: any) => (
+                    <Card key={file.id} className="overflow-hidden">
+                      <CardContent className="p-4">
+                        <div className="flex items-start gap-3">
+                          <div className="text-2xl">{getFileIcon(file.mimeType || '')}</div>
+                          <div className="flex-1 min-w-0">
+                            <p className="font-medium text-sm truncate" title={file.filename}>
+                              {file.filename}
+                            </p>
+                            <div className="flex items-center gap-2 mt-1">
+                              <Badge variant="outline" className="text-xs">
+                                {file.mimeType?.split('/')[1]?.toUpperCase() || 'FILE'}
+                              </Badge>
+                              {file.size && (
+                                <span className="text-xs text-muted-foreground">
+                                  {formatFileSize(file.size)}
+                                </span>
+                              )}
+                            </div>
+                            <div className="flex gap-2 mt-3">
+                              <Button size="sm" variant="outline" className="h-7 text-xs">
+                                <Download className="mr-1 h-3 w-3" />
+                                Download
+                              </Button>
+                              <Button size="sm" variant="ghost" className="h-7 text-xs">
+                                <ExternalLink className="mr-1 h-3 w-3" />
+                                Preview
+                              </Button>
+                            </div>
+                          </div>
+                        </div>
+                      </CardContent>
+                    </Card>
+                  ))}
+                </div>
+              )}
+            </TabsContent>
+          ))}
+        </Tabs>
+      </CardContent>
+    </Card>
+  )
+}