fix: scope admin ranking dashboard side-sheet stats to current round

The admin dashboard fetches its side-sheet detail from project.getFullDetail
(not analytics.getProjectDetail as the audit assumed), and that procedure
had the same cross-round contamination bug. Add an optional roundId to
its input, filter the SUBMITTED-evaluations query when provided, and pass
roundId from the dashboard's useQuery so the Avg Score / Pass Rate /
Evaluators card now matches the per-juror list rendered below it.

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

tests/unit/juror-balance-round-scoping.test.ts

@@ -6,6 +6,7 @@ import {
   createTestEvaluation, createTestEvaluationForm, cleanupTestData, uid,
 } from '../helpers'
 import { analyticsRouter } from '../../src/server/routers/analytics'
+import { projectRouter } from '../../src/server/routers/project'
 
 describe('analytics.getProjectDetail round scoping', () => {
   let programId: string
@@ -69,6 +70,15 @@ describe('analytics.getProjectDetail round scoping', () => {
     const result = await caller.getProjectDetail({ id: projectId })
     expect(result.stats!.totalEvaluations).toBe(5)
   })
+
+  it('project.getFullDetail also scopes stats to roundId when provided', async () => {
+    const caller = createCaller(projectRouter, admin)
+    const scoped = await caller.getFullDetail({ id: projectId, roundId: roundBId })
+    expect(scoped.stats!.totalEvaluations).toBe(3)
+    expect(scoped.stats!.averageGlobalScore).toBeCloseTo(8.333, 2)
+    const aggregate = await caller.getFullDetail({ id: projectId })
+    expect(aggregate.stats!.totalEvaluations).toBe(5)
+  })
 })
 
 describe('analytics.getProjectRankings per-round z-context (edition mode)', () => {