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/server/routers/filtering.ts

@@ -1153,6 +1153,19 @@ export const filteringRouter = router({
 
       const passedIds = passedResults.map((r) => r.projectId)
 
+      // Exclude projects confirmed for SEPARATE_POOL award tracks from main pool
+      const awardRouted = await ctx.prisma.awardEligibility.findMany({
+        where: {
+          projectId: { in: passedIds },
+          shortlisted: true,
+          confirmedAt: { not: null },
+          award: { eligibilityMode: 'SEPARATE_POOL' },
+        },
+        select: { projectId: true },
+      })
+      const awardRoutedIds = new Set(awardRouted.map((a) => a.projectId))
+      const mainPoolPassedIds = passedIds.filter((id) => !awardRoutedIds.has(id))
+
       const operations: Prisma.PrismaPromise<unknown>[] = []
 
       if (filteredOutIds.length > 0) {
@@ -1164,10 +1177,10 @@ export const filteringRouter = router({
         )
       }
 
-      if (passedIds.length > 0) {
+      if (mainPoolPassedIds.length > 0) {
         operations.push(
           ctx.prisma.project.updateMany({
-            where: { id: { in: passedIds } },
+            where: { id: { in: mainPoolPassedIds } },
             data: { status: 'ELIGIBLE' },
           })
         )
@@ -1197,7 +1210,8 @@ export const filteringRouter = router({
         entityId: input.roundId,
         detailsJson: {
           action: 'FINALIZE_FILTERING',
-          passed: passedIds.length,
+          passed: mainPoolPassedIds.length,
+          routedToAwards: awardRoutedIds.size,
           filteredOut: filteredOutIds.length,
           demotedToFlagged: demotedIds.length,
           categoryTargets: input.categoryTargets || null,
@@ -1207,7 +1221,8 @@ export const filteringRouter = router({
       })
 
       return {
-        passed: passedIds.length,
+        passed: mainPoolPassedIds.length,
+        routedToAwards: awardRoutedIds.size,
         filteredOut: filteredOutIds.length,
         demotedToFlagged: demotedIds.length,
         categoryCounts,