feat(final-docs): decouple grand-final docs from LIVE_FINAL being ROUND_ACTIVE

The Grand Final round = the live event; document upload + judge review happen
in the lead-up BEFORE it opens. So gate them on finalist enrollment + the round
being open-for-docs (DRAFT or ACTIVE, not closed/finalized) instead of requiring
ROUND_ACTIVE. Lets the round stay DRAFT until event time.

- getOpenFinaleRound (was getActiveFinaleRound): status in {DRAFT,ACTIVE}, not finalized
- cron + userCanReviewFinals use the same open-status condition
- getUploadUrl + deleteFile allow a not-yet-closed LIVE_FINAL round
- getMyDashboard openRounds includes the enrolled DRAFT LIVE_FINAL round (finalists only)
- tests: DRAFT now works; CLOSED returns null

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

tests/unit/final-documents.test.ts

@@ -25,7 +25,7 @@ import { BUCKET_NAME, generateObjectKey } from '@/lib/minio'
 const programIds: string[] = []
 
 async function makeFinaleProgram(
-  opts: { roundStatus?: 'ROUND_ACTIVE' | 'ROUND_DRAFT'; closeAt?: Date; skipRequirements?: boolean } = {},
+  opts: { roundStatus?: 'ROUND_ACTIVE' | 'ROUND_DRAFT' | 'ROUND_CLOSED'; closeAt?: Date; skipRequirements?: boolean } = {},
 ) {
   const program = await createTestProgram()
   programIds.push(program.id)
@@ -93,11 +93,20 @@ describe('getFinalDocumentStatusForProject', () => {
     expect(status!.allRequiredUploaded).toBe(true)
   })
 
-  it('returns null when the LIVE_FINAL round is not active', async () => {
+  it('works when the LIVE_FINAL round is DRAFT (pre-event — documents open before the round opens)', async () => {
     const { program, round } = await makeFinaleProgram({ roundStatus: 'ROUND_DRAFT' })
     const project = await createTestProject(program.id)
     await createTestProjectRoundState(project.id, round.id)
     const status = await getFinalDocumentStatusForProject(prisma, project.id)
+    expect(status).not.toBeNull()
+    expect(status!.roundId).toBe(round.id)
+  })
+
+  it('returns null when the LIVE_FINAL round is CLOSED', async () => {
+    const { program, round } = await makeFinaleProgram({ roundStatus: 'ROUND_CLOSED' })
+    const project = await createTestProject(program.id)
+    await createTestProjectRoundState(project.id, round.id)
+    const status = await getFinalDocumentStatusForProject(prisma, project.id)
     expect(status).toBeNull()
   })