fix: scope analytics assignments to selected round

getProjectRankings and getAllProjects in the analytics router were
loading every assignment for each project regardless of the selected
round, so per-round rankings in the admin reports were counting
evaluations from prior rounds and mixing their scores into averages.
A Round 2 view with 3 reviews per project was showing 5 evaluations
and a skewed average that included Round 1 data.

Filter the nested assignments include by the round (or program) the
request is scoped to, matching the pattern already used by the ranking
service and by getStatusBreakdown.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/server/routers/analytics.ts

@@ -198,6 +198,7 @@ export const analyticsRouter = router({
           teamName: true,
           status: true,
           assignments: {
+            where: assignmentWhere(input),
             select: {
               evaluation: {
                 select: { criterionScoresJson: true, status: true },
@@ -1072,6 +1073,7 @@ export const analyticsRouter = router({
             logoKey: true,
             logoProvider: true,
             assignments: {
+              where: input.roundId ? { roundId: input.roundId } : undefined,
               select: {
                 roundId: true,
                 round: { select: { id: true, name: true, sortOrder: true } },