fix: Update test email generation

scripts/generate-test-data.ts

@@ -22,7 +22,7 @@ async function generateTestData(env: Env) {
     // 生成测试邮箱
     const testEmails = Array.from({ length: MAX_EMAIL_COUNT }).map(() => ({
       id: crypto.randomUUID(),
-      address: `${nanoid(6)}@${EMAIL_CONFIG.DOMAIN}`,
+      address: `${nanoid(6)}@${EMAIL_CONFIG.DOMAINS[0]}`,
       userId: TEST_USER_ID,
       createdAt: now,
       expiresAt: new Date(now.getTime() + 24 * 60 * 60 * 1000),