Special awards: Rounds tab UI, auto-filter threshold, remove auto-tag rules

- Add Rounds tab to award detail page with create/list/delete functionality
- Add "Entry point" badge on first award round (confirmShortlist routes here)
- Fix round detail back-link to navigate to parent award when specialAwardId set
- Filter award rounds out of competition round list
- Add specialAwardId to competition getById round select
- Warn on confirmShortlist when no award rounds exist (SEPARATE_POOL mode)
- Remove auto-tag rules from award config, edit page, router, and AI service
- Fix competitionId not passed when creating awards from competition context
- Add AUTO_FILTER quality threshold to AI filtering dashboard

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

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

@@ -548,8 +548,8 @@ export default function RoundDetailPage() {
       >
         <div className="flex flex-col gap-4 sm:flex-row sm:items-start sm:justify-between">
           <div className="flex items-start gap-3 min-w-0">
-            <Link href={'/admin/rounds' as Route} className="mt-0.5 shrink-0">
-              <Button variant="ghost" size="icon" className="h-8 w-8 text-white/80 hover:text-white hover:bg-white/10" aria-label="Back to rounds">
+            <Link href={(round.specialAwardId ? `/admin/awards/${round.specialAwardId}` : '/admin/rounds') as Route} className="mt-0.5 shrink-0">
+              <Button variant="ghost" size="icon" className="h-8 w-8 text-white/80 hover:text-white hover:bg-white/10" aria-label={round.specialAwardId ? 'Back to Award' : 'Back to rounds'}>
                 <ArrowLeft className="h-4 w-4" />
               </Button>
             </Link>
@@ -1950,8 +1950,6 @@ export default function RoundDetailPage() {
                 <div className="space-y-3">
                   {roundAwards.map((award) => {
                     const eligibleCount = award._count?.eligibilities || 0
-                    const autoTagRules = award.autoTagRulesJson as { rules?: unknown[] } | null
-                    const ruleCount = autoTagRules?.rules?.length || 0
 
                     return (
                       <Link
@@ -1983,10 +1981,6 @@ export default function RoundDetailPage() {
                             )}
                           </div>
                           <div className="flex items-center gap-4 text-sm text-muted-foreground shrink-0">
-                            <div className="text-right">
-                              <div className="font-medium text-foreground">{ruleCount}</div>
-                              <div className="text-xs">{ruleCount === 1 ? 'rule' : 'rules'}</div>
-                            </div>
                             <div className="text-right">
                               <div className="font-medium text-foreground">{eligibleCount}</div>
                               <div className="text-xs">eligible</div>