fix: bundle report db driver for survey sync

lib/performance-survey-report-sync.ts

@@ -1,5 +1,6 @@
 import { randomUUID } from 'crypto'
 import { prisma } from '@/lib/prisma'
+import mssql from 'mssql'
 
 type ReportEmployeeRow = {
   dingtalkUserId?: string | null
@@ -556,8 +557,7 @@ function shouldRefreshProfile(profile: { syncedAt?: Date | null; departmentName?
 }
 
 async function getReportPool() {
-  const imported = await import('mssql')
-  const sql = (imported.default || imported) as typeof import('mssql')
+  const sql = mssql as typeof import('mssql')
   return {
     sql,
     pool: await sql.connect(getReportDbConfig() as any),