Decouple projects from rounds with RoundProject join table

Projects now exist at the program level instead of being locked to a
single round. A new RoundProject join table enables many-to-many
relationships with per-round status tracking. Rounds have sortOrder
for configurable progression paths.

- Add RoundProject model, programId on Project, sortOrder on Round
- Migration preserves existing data (roundId -> RoundProject entries)
- Update all routers to query through RoundProject join
- Add assign/remove/advance/reorder round endpoints
- Add Assign, Advance, Remove Projects dialogs on round detail page
- Add round reorder controls (up/down arrows) on rounds list
- Show all rounds on project detail page

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/app/(admin)/admin/rounds/new/page.tsx

@@ -16,7 +16,6 @@ import {
 } from '@/components/ui/card'
 import { Button } from '@/components/ui/button'
 import { Input } from '@/components/ui/input'
-import { Label } from '@/components/ui/label'
 import {
   Select,
   SelectContent,
@@ -34,6 +33,7 @@ import {
   FormLabel,
   FormMessage,
 } from '@/components/ui/form'
+import { RoundTypeSettings } from '@/components/forms/round-type-settings'
 import { ArrowLeft, Loader2, AlertCircle } from 'lucide-react'
 
 const createRoundSchema = z.object({
@@ -58,6 +58,8 @@ function CreateRoundContent() {
   const router = useRouter()
   const searchParams = useSearchParams()
   const programIdParam = searchParams.get('program')
+  const [roundType, setRoundType] = useState<'FILTERING' | 'EVALUATION' | 'LIVE_EVENT'>('EVALUATION')
+  const [roundSettings, setRoundSettings] = useState<Record<string, unknown>>({})
 
   const { data: programs, isLoading: loadingPrograms } = trpc.program.list.useQuery()
 
@@ -82,7 +84,9 @@ function CreateRoundContent() {
     await createRound.mutateAsync({
       programId: data.programId,
       name: data.name,
+      roundType,
       requiredReviews: data.requiredReviews,
+      settingsJson: roundSettings,
       votingStartAt: data.votingStartAt ? new Date(data.votingStartAt) : undefined,
       votingEndAt: data.votingEndAt ? new Date(data.votingEndAt) : undefined,
     })
@@ -218,6 +222,14 @@ function CreateRoundContent() {
             </CardContent>
           </Card>
 
+          {/* Round Type & Settings */}
+          <RoundTypeSettings
+            roundType={roundType}
+            onRoundTypeChange={setRoundType}
+            settings={roundSettings}
+            onSettingsChange={setRoundSettings}
+          />
+
           <Card>
             <CardHeader>
               <CardTitle className="text-lg">Voting Window</CardTitle>