test(ci): add exporter heading levels and a11y typography smoke; update MAIN_PLAN

lib/integrations/sheets.test.ts

@@ -0,0 +1,33 @@
+import { describe, it, expect } from 'vitest'
+import { generateAppsScriptTemplate } from '@/lib/integrations/sheets'
+
+describe('Google Sheets Apps Script 템플릿', () => {
+  it('시트 ID와 허용 오리진으로 Apps Script 코드와 가이드를 생성한다', () => {
+    const out = generateAppsScriptTemplate({
+      sheetId: '1AbcDEFghiJKL_sheet_id',
+      allowedOrigins: ['https://example.com', 'http://localhost:3000'],
+      minSubmitSeconds: 2,
+      honeypotFieldName: '_hp',
+      sheetName: 'Responses',
+    })
+
+    expect(typeof out.code).toBe('string')
+    expect(typeof out.readme).toBe('string')
+
+    // 필수 키워드 포함 검증
+    expect(out.code).toContain('function doPost(e)')
+    expect(out.code).toContain('SpreadsheetApp.openById')
+    expect(out.code).toContain('e.postData')
+    expect(out.code).toContain('ContentService.createTextOutput')
+    expect(out.code).toContain('Access-Control-Allow-Origin')
+
+    // 환경설정 치환값 반영
+    expect(out.code).toContain('1AbcDEFghiJKL_sheet_id')
+    expect(out.code).toContain('Responses')
+    expect(out.code).toContain('_hp')
+    expect(out.code).toContain('minSubmitSeconds')
+
+    // 배포 가이드에 웹 앱 배포 안내 포함
+    expect(out.readme).toMatch(/Deploy.*as Web app/i)
+  })
+})