Auto-transition projects to PASSED when all required documents uploaded

Add checkRequirementsAndTransition() to round-engine that checks if all
required FileRequirements for a round are satisfied by uploaded files.
When all are met and the project is PENDING/IN_PROGRESS, it auto-
transitions to PASSED. Also adds batchCheckRequirementsAndTransition()
for bulk operations.

Wired into:
- file.adminUploadForRoundRequirement (admin bulk upload)
- applicant.saveFileMetadata (applicant self-upload)

Non-fatal: failures in the check never break the upload itself.

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

src/server/routers/applicant.ts

@@ -6,6 +6,7 @@ import { getPresignedUrl, generateObjectKey } from '@/lib/minio'
 import { sendStyledNotificationEmail, sendTeamMemberInviteEmail } from '@/lib/email'
 import { logAudit } from '@/server/utils/audit'
 import { createNotification } from '../services/in-app-notification'
+import { checkRequirementsAndTransition } from '../services/round-engine'
 
 // Bucket for applicant submissions
 export const SUBMISSIONS_BUCKET = 'mopc-submissions'
@@ -410,6 +411,16 @@ export const applicantRouter = router({
         },
       })
 
+      // Auto-transition: if uploading against a round requirement, check completion
+      if (roundId && requirementId) {
+        await checkRequirementsAndTransition(
+          projectId,
+          roundId,
+          ctx.user.id,
+          ctx.prisma,
+        )
+      }
+
       return file
     }),