Show edition year instead of program name platform-wide

Change program selectors and display labels from full program name
to "2026 Edition" format across admin, jury, mentor, observer, and
public pages. Selector labels changed from "Program" to "Edition".

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

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

@@ -150,7 +150,7 @@ function RoundDetailContent({ roundId }: { roundId: string }) {
         <div className="space-y-1">
           <div className="flex items-center gap-2 text-sm text-muted-foreground">
             <Link href={`/admin/programs/${round.program.id}`} className="hover:underline">
-              {round.program.name}
+              {round.program.year} Edition
             </Link>
           </div>
           <div className="flex items-center gap-3">