Exclude SEPARATE_POOL award projects from main pool finalization

- finalizeResults now queries confirmed SEPARATE_POOL shortlist and
  excludes those projects from the main pool ELIGIBLE set
- Finalize confirmation dialog shows breakdown: main pool vs award-routed
- Finalize toast includes award-routed count
- Audit log records routedToAwards count

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

src/components/admin/round/filtering-dashboard.tsx

@@ -250,6 +250,7 @@ export function FilteringDashboard({ competitionId, roundId }: FilteringDashboar
       utils.project.list.invalidate()
       toast.success(
         `Finalized: ${data.passed} passed, ${data.filteredOut} filtered out` +
+        (data.routedToAwards > 0 ? `, ${data.routedToAwards} routed to award tracks` : '') +
         (data.advancedToStageName ? `. Next round: ${data.advancedToStageName}` : '')
       )
       if (data.categoryWarnings.length > 0) {
@@ -483,7 +484,12 @@ export function FilteringDashboard({ competitionId, roundId }: FilteringDashboar
                         This will mark PASSED projects as eligible and FILTERED_OUT projects as rejected.
                         {stats && (
                           <span className="block mt-2 font-medium">
-                            {stats.passed} will pass, {stats.filteredOut} will be filtered out, {stats.flagged} flagged for review.
+                            {stats.passed - (stats.routedToAwards || 0)} will pass to main pool, {stats.filteredOut} will be filtered out{stats.flagged > 0 ? `, ${stats.flagged} flagged for review` : ''}.
+                            {(stats.routedToAwards || 0) > 0 && (
+                              <span className="block text-amber-700">
+                                {stats.routedToAwards} already routed to award tracks (excluded from main pool).
+                              </span>
+                            )}
                           </span>
                         )}
                         This action can be reversed but requires manual intervention.