fix(06): correct clientName in agent notification email

teressa-copeland-homes/src/app/api/sign/[token]/route.ts

@@ -3,7 +3,7 @@ import { NextRequest, NextResponse } from 'next/server';
 import { verifySigningToken } from '@/lib/signing/token';
 import { logAuditEvent } from '@/lib/signing/audit';
 import { db } from '@/lib/db';
-import { signingTokens, documents } from '@/lib/db/schema';
+import { signingTokens, documents, clients } from '@/lib/db/schema';
 import { eq, isNull, and } from 'drizzle-orm';
 import path from 'node:path';
 import { embedSignatureInPdf } from '@/lib/signing/embed-signature';
@@ -229,12 +229,13 @@ export async function POST(
   db.query.documents
     .findFirst({
       where: eq(documents.id, payload.documentId),
+      with: { client: { columns: { name: true } } },
       columns: { name: true },
     })
     .then(async (freshDoc) => {
       try {
         await sendAgentNotificationEmail({
-          clientName: freshDoc?.name ?? 'Client',
+          clientName: (freshDoc as { client?: { name: string } } & typeof freshDoc)?.client?.name ?? 'Client',
           documentName: freshDoc?.name ?? doc.name,
           signedAt: now,
         });