Fix award source round dropdown — auto-resolve competitionId from program

Awards created from /admin/awards/new only sent programId, leaving
competitionId null. The edit page's source round dropdown was empty
because it depended on competitionId to fetch competition rounds.

- create mutation: auto-resolve competitionId from program's latest competition
- update mutation: backfill competitionId on save if missing
- get query: backfill competitionId on read for legacy awards
- edit page: use award.competition.rounds directly instead of separate query

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

src/app/(admin)/admin/awards/[id]/edit/page.tsx

@@ -38,12 +38,8 @@ export default function EditAwardPage({
   const utils = trpc.useUtils()
   const { data: award, isLoading } = trpc.specialAward.get.useQuery({ id: awardId })
 
-  // Fetch competition rounds for source round selector
-  const competitionId = award?.competitionId
-  const { data: competition } = trpc.competition.getById.useQuery(
-    { id: competitionId! },
-    { enabled: !!competitionId }
-  )
+  // Rounds come from the award's included competition relation
+  const competitionRounds = award?.competition?.rounds ?? []
 
   const updateAward = trpc.specialAward.update.useMutation({
     onSuccess: () => {
@@ -266,13 +262,11 @@ export default function EditAwardPage({
                 </SelectTrigger>
                 <SelectContent>
                   <SelectItem value="none">No source round</SelectItem>
-                  {competition?.rounds
-                    ?.sort((a, b) => a.sortOrder - b.sortOrder)
-                    .map((round) => (
-                      <SelectItem key={round.id} value={round.id}>
-                        {round.name} ({round.roundType})
-                      </SelectItem>
-                    ))}
+                  {competitionRounds.map((round) => (
+                    <SelectItem key={round.id} value={round.id}>
+                      {round.name} ({round.roundType})
+                    </SelectItem>
+                  ))}
                 </SelectContent>
               </Select>
               <p className="text-xs text-muted-foreground">