feat(final-docs): mentor.getProjectFinalDocuments procedure

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

src/server/routers/mentor.ts

@@ -50,6 +50,7 @@ import {
   signMentorUploadToken,
   verifyMentorUploadToken,
 } from '@/lib/mentor-upload-token'
+import { getFinalDocumentStatusForProject } from '../services/final-documents'
 
 /**
  * True if the project is enrolled in a MENTORING round that is still
@@ -215,6 +216,21 @@ async function assertProjectWorkspaceAccess(
 }
 
 export const mentorRouter = router({
+  /** Grand-final document status for a project, for the mentor workspace panel. */
+  getProjectFinalDocuments: protectedProcedure
+    .input(z.object({ projectId: z.string() }))
+    .query(async ({ ctx, input }) => {
+      const isAdmin = ['SUPER_ADMIN', 'PROGRAM_ADMIN'].includes(ctx.user.role)
+      if (!isAdmin) {
+        const [mentorAssignment, teamMembership] = await Promise.all([
+          ctx.prisma.mentorAssignment.findFirst({ where: { mentorId: ctx.user.id, projectId: input.projectId }, select: { id: true } }),
+          ctx.prisma.teamMember.findFirst({ where: { userId: ctx.user.id, projectId: input.projectId }, select: { id: true } }),
+        ])
+        if (!mentorAssignment && !teamMembership) throw new TRPCError({ code: 'FORBIDDEN', message: 'No access to this project' })
+      }
+      return getFinalDocumentStatusForProject(ctx.prisma, input.projectId)
+    }),
+
   /**
    * Get AI-suggested mentor matches for a project
    */