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/file.ts

@@ -3,6 +3,7 @@ import { TRPCError } from '@trpc/server'
 import { router, protectedProcedure, adminProcedure } from '../trpc'
 import { getPresignedUrl, generateObjectKey, deleteObject, BUCKET_NAME } from '@/lib/minio'
 import { logAudit } from '../utils/audit'
+import { checkRequirementsAndTransition } from '../services/round-engine'
 
 export const fileRouter = router({
   /**
@@ -1501,6 +1502,14 @@ export const fileRouter = router({
         userAgent: ctx.userAgent,
       })
 
+      // Auto-transition: check if all required documents are now uploaded
+      await checkRequirementsAndTransition(
+        input.projectId,
+        input.roundId,
+        ctx.user.id,
+        ctx.prisma,
+      )
+
       return { uploadUrl, file }
     }),