Round system redesign: Phases 1-7 complete

Full pipeline/track/stage architecture replacing the legacy round system.

Schema: 11 new models (Pipeline, Track, Stage, StageTransition,
ProjectStageState, RoutingRule, Cohort, CohortProject, LiveProgressCursor,
OverrideAction, AudienceVoter) + 8 new enums.

Backend: 9 new routers (pipeline, stage, routing, stageFiltering,
stageAssignment, cohort, live, decision, award) + 6 new services
(stage-engine, routing-engine, stage-filtering, stage-assignment,
stage-notifications, live-control).

Frontend: Pipeline wizard (17 components), jury stage pages (7),
applicant pipeline pages (3), public stage pages (2), admin pipeline
pages (5), shared stage components (3), SSE route, live hook.

Phase 6 refit: 23 routers/services migrated from roundId to stageId,
all frontend components refitted. Deleted round.ts (985 lines),
roundTemplate.ts, round-helpers.ts, round-settings.ts, round-type-settings.tsx,
10 legacy admin pages, 7 legacy jury pages, 3 legacy dialogs.

Phase 7 validation: 36 tests (10 unit + 8 integration files) all passing,
TypeScript 0 errors, Next.js build succeeds, 13 integrity checks,
legacy symbol sweep clean, auto-seed on first Docker startup.

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

src/components/admin/pipeline/wizard-section.tsx

@@ -0,0 +1,82 @@
+'use client'
+
+import { cn } from '@/lib/utils'
+import { Card, CardContent, CardHeader } from '@/components/ui/card'
+import {
+  Collapsible,
+  CollapsibleContent,
+  CollapsibleTrigger,
+} from '@/components/ui/collapsible'
+import { Badge } from '@/components/ui/badge'
+import { ChevronDown, CheckCircle2, AlertCircle } from 'lucide-react'
+
+type WizardSectionProps = {
+  title: string
+  description?: string
+  stepNumber: number
+  isOpen: boolean
+  onToggle: () => void
+  isValid: boolean
+  hasErrors?: boolean
+  children: React.ReactNode
+}
+
+export function WizardSection({
+  title,
+  description,
+  stepNumber,
+  isOpen,
+  onToggle,
+  isValid,
+  hasErrors,
+  children,
+}: WizardSectionProps) {
+  return (
+    <Collapsible open={isOpen} onOpenChange={onToggle}>
+      <Card className={cn(isOpen && 'ring-1 ring-ring')}>
+        <CollapsibleTrigger asChild>
+          <CardHeader className="cursor-pointer select-none hover:bg-muted/50 transition-colors">
+            <div className="flex items-center gap-3">
+              <Badge
+                variant={isValid ? 'default' : 'outline'}
+                className={cn(
+                  'h-7 w-7 shrink-0 rounded-full p-0 flex items-center justify-center text-xs font-bold',
+                  isValid
+                    ? 'bg-emerald-500 text-white hover:bg-emerald-500'
+                    : hasErrors
+                      ? 'border-destructive text-destructive'
+                      : ''
+                )}
+              >
+                {isValid ? (
+                  <CheckCircle2 className="h-4 w-4" />
+                ) : hasErrors ? (
+                  <AlertCircle className="h-4 w-4" />
+                ) : (
+                  stepNumber
+                )}
+              </Badge>
+              <div className="flex-1 min-w-0">
+                <h3 className="text-sm font-semibold">{title}</h3>
+                {description && !isOpen && (
+                  <p className="text-xs text-muted-foreground truncate mt-0.5">
+                    {description}
+                  </p>
+                )}
+              </div>
+              <ChevronDown
+                className={cn(
+                  'h-4 w-4 text-muted-foreground transition-transform',
+                  isOpen && 'rotate-180'
+                )}
+              />
+            </div>
+          </CardHeader>
+        </CollapsibleTrigger>
+        <CollapsibleContent>
+          <CardContent className="pt-0">{children}</CardContent>
+        </CollapsibleContent>
+      </Card>
+    </Collapsible>
+  )
+}