feat(export-ui): Display 드롭다운/테마컬러 HEX 검증 반영(TDD)

components/BuilderClientPage.tsx

@@ -6,6 +6,7 @@ import { pageSchema, type Page } from '@/lib/schema/page'
 import { exportPage } from '@/lib/exporter/html'
 import { AssetManager } from '@/lib/assets/assetManager'
 import { buildZip } from '@/lib/exporter/zip'
+import { buildExtrasForPage } from '@/lib/exporter/extras'
 import type { Section } from '@/lib/state/store'
 import { createFormStore, type FormState } from '@/lib/state/formStore'
 import FormBuilderPanel from '@/components/FormBuilderPanel'
@@ -47,6 +48,13 @@ export default function BuilderClientPage() {
   const [ogImage, setOgImage] = useState<string>('')
   const [ga4MeasurementId, setGa4MeasurementId] = useState<string>('')
   const [metaPixelId, setMetaPixelId] = useState<string>('')
+  // Export Options (manifest/robots overrides)
+  const [manifestName, setManifestName] = useState<string>('')
+  const [manifestShortName, setManifestShortName] = useState<string>('')
+  const [manifestStartUrl, setManifestStartUrl] = useState<string>('')
+  const [manifestDisplay, setManifestDisplay] = useState<string>('')
+  const [manifestThemeColor, setManifestThemeColor] = useState<string>('')
+  const [robotsDisallow, setRobotsDisallow] = useState<string>('')
   const [viewport, setViewport] = useState<'desktop' | 'mobile'>(() => {
     if (typeof window !== 'undefined') {
       try {
@@ -185,7 +193,20 @@ export default function BuilderClientPage() {
   }, [pageData, am])
 
   const doExport = useCallback(async () => {
-    const valid = pageSchema.parse(pageData)
+    let valid = pageData as Page
+    try {
+      valid = pageSchema.parse(pageData)
+    } catch {
+      const fixed: Page = {
+        ...pageData,
+        form: {
+          actionUrl: pageData.form?.actionUrl ?? '',
+          fields: pageData.form?.fields ?? [],
+          spamProtection: pageData.form?.spamProtection ?? { honeypotFieldName: '_hp', minSubmitSeconds: 2 },
+        },
+      } as Page
+      valid = pageSchema.parse(fixed)
+    }
     const exported = exportPage(valid, { assetManager: am ?? undefined })
     try {
       if (typeof window !== 'undefined') {
@@ -196,9 +217,30 @@ export default function BuilderClientPage() {
       }
     } catch {}
     const assets = am ? am.toZipStructure() : {}
-    const zipBytes = await buildZip({ html: exported.html, css: exported.css, js: exported.js, assets })
+    // Build overrides from UI options
+    const manifestOverrideBase: Record<string, string> = {}
+    if (manifestName && manifestName.trim().length > 0) manifestOverrideBase.name = manifestName.trim()
+    if (manifestShortName && manifestShortName.trim().length > 0) manifestOverrideBase.short_name = manifestShortName.trim()
+    if (manifestStartUrl && manifestStartUrl.trim().length > 0) manifestOverrideBase.start_url = manifestStartUrl.trim()
+    if (manifestDisplay && manifestDisplay.trim().length > 0) manifestOverrideBase.display = manifestDisplay.trim()
+    if (manifestThemeColor && manifestThemeColor.trim().length > 0) {
+      const v = manifestThemeColor.trim()
+      const hexOk = /^#([0-9a-fA-F]{3}){1,2}$/.test(v)
+      if (hexOk) {
+        manifestOverrideBase.theme_color = v
+      }
+    }
+    const manifestOverride = Object.keys(manifestOverrideBase).length > 0 ? (manifestOverrideBase as { name?: string; short_name?: string; start_url?: string; display?: string; theme_color?: string }) : undefined
+    const robotsTextOverride = (() => {
+      const lines = (robotsDisallow || '').split(/\n+/).map((s) => s.trim()).filter((s) => s.length > 0)
+      if (lines.length === 0) return undefined
+      const disallowLines = lines.map((l) => (l.startsWith('Disallow:') ? l : `Disallow: ${l}`))
+      return `User-agent: *\n${disallowLines.join('\n')}`
+    })()
+    const extras = buildExtrasForPage(valid, { robotsText: robotsTextOverride, manifest: manifestOverride })
+    const zipBytes = await buildZip({ html: exported.html, css: exported.css, js: exported.js, assets, extras })
     download('landing.zip', zipBytes)
-  }, [pageData, am])
+  }, [pageData, am, manifestName, manifestShortName, manifestStartUrl, manifestDisplay, manifestThemeColor, robotsDisallow])
 
   return (
     <div className="p-6 space-y-6">
@@ -261,6 +303,80 @@ export default function BuilderClientPage() {
                 onSelect={(i) => setSelectedIndex(i)}
               />
             </div>
+            <div className="border rounded p-3 space-y-2">
+              <h2 className="text-sm font-semibold mb-1">Export Options</h2>
+              <label className="block" htmlFor="ins-manifest-name">
+                <span className="sr-only">Manifest Name</span>
+                <input
+                  id="ins-manifest-name"
+                  aria-label="Manifest Name"
+                  className="border rounded px-3 py-2 w-full"
+                  value={manifestName}
+                  onChange={(e) => setManifestName(e.target.value)}
+                  placeholder="My App"
+                />
+              </label>
+              <label className="block" htmlFor="ins-manifest-short-name">
+                <span className="sr-only">Manifest Short Name</span>
+                <input
+                  id="ins-manifest-short-name"
+                  aria-label="Manifest Short Name"
+                  className="border rounded px-3 py-2 w-full"
+                  value={manifestShortName}
+                  onChange={(e) => setManifestShortName(e.target.value)}
+                  placeholder="MyApp"
+                />
+              </label>
+              <label className="block" htmlFor="ins-manifest-start-url">
+                <span className="sr-only">Manifest Start URL</span>
+                <input
+                  id="ins-manifest-start-url"
+                  aria-label="Manifest Start URL"
+                  className="border rounded px-3 py-2 w-full"
+                  value={manifestStartUrl}
+                  onChange={(e) => setManifestStartUrl(e.target.value)}
+                  placeholder="/"
+                />
+              </label>
+              <label className="block" htmlFor="ins-manifest-display">
+                <span className="sr-only">Manifest Display</span>
+                <select
+                  id="ins-manifest-display"
+                  aria-label="Manifest Display"
+                  className="border rounded px-3 py-2 w-full"
+                  value={manifestDisplay}
+                  onChange={(e) => setManifestDisplay(e.target.value)}
+                >
+                  <option value="">(default)</option>
+                  <option value="standalone">standalone</option>
+                  <option value="minimal-ui">minimal-ui</option>
+                  <option value="browser">browser</option>
+                </select>
+              </label>
+              <label className="block" htmlFor="ins-manifest-theme-color">
+                <span className="sr-only">Manifest Theme Color</span>
+                <input
+                  id="ins-manifest-theme-color"
+                  aria-label="Manifest Theme Color"
+                  className="border rounded px-3 py-2 w-full"
+                  value={manifestThemeColor}
+                  onChange={(e) => setManifestThemeColor(e.target.value)}
+                  placeholder="#0ea5e9"
+                />
+              </label>
+              <label className="block" htmlFor="ins-robots-disallow">
+                <span className="sr-only">Robots Disallow</span>
+                <textarea
+                  id="ins-robots-disallow"
+                  aria-label="Robots Disallow"
+                  className="border rounded px-3 py-2 w-full"
+                  rows={3}
+                  value={robotsDisallow}
+                  onChange={(e) => setRobotsDisallow(e.target.value)}
+                  placeholder="/private\n/tmp"
+                />
+              </label>
+            </div>
           </div>
         }
         right={

components/ExportOptions.manifest.ui.test.tsx

@@ -0,0 +1,67 @@
+import { describe, it, expect, vi } from 'vitest'
+import { render, screen, fireEvent } from '@testing-library/react'
+import BuilderClientPage from '@/components/BuilderClientPage'
+
+vi.mock('next-intl', () => {
+  return {
+    useTranslations: () => (key: string) => key,
+  }
+})
+
+const buildZipSpy = vi.fn(async (_arg: {
+  html: string
+  css: string
+  js: string
+  assets: Record<string, Uint8Array>
+  extras?: Record<string, Uint8Array>
+}) => new Uint8Array([80, 75]))
+
+vi.mock('@/lib/exporter/zip', () => {
+  return {
+    buildZip: (arg: {
+      html: string
+      css: string
+      js: string
+      assets: Record<string, Uint8Array>
+      extras?: Record<string, Uint8Array>
+    }) => buildZipSpy(arg),
+  }
+})
+
+describe('Export Options UI → manifest fields', () => {
+  it('passes short_name/start_url/display/theme_color to extras manifest JSON', async () => {
+    render(<BuilderClientPage />)
+
+    const shortName = 'MyApp'
+    const startUrl = '/home'
+    const display = 'minimal-ui'
+    const themeColor = '#112233'
+
+    const snInput = await screen.findByLabelText('Manifest Short Name')
+    fireEvent.change(snInput, { target: { value: shortName } })
+
+    const startInput = await screen.findByLabelText('Manifest Start URL')
+    fireEvent.change(startInput, { target: { value: startUrl } })
+
+    const displayInput = await screen.findByLabelText('Manifest Display')
+    fireEvent.change(displayInput, { target: { value: display } })
+
+    const colorInput = await screen.findByLabelText('Manifest Theme Color')
+    fireEvent.change(colorInput, { target: { value: themeColor } })
+
+    const exportBtn = await screen.findByRole('button', { name: 'builder.action.export' })
+    fireEvent.click(exportBtn)
+
+    expect(buildZipSpy).toHaveBeenCalled()
+    const first = buildZipSpy.mock.calls[0]
+    const extras: Record<string, Uint8Array> = (first![0] as { extras: Record<string, Uint8Array> }).extras
+    const td = new TextDecoder()
+    const manifestRaw = td.decode(extras['site.webmanifest'])
+    const manifest = JSON.parse(manifestRaw)
+
+    expect(manifest.short_name).toBe(shortName)
+    expect(manifest.start_url).toBe(startUrl)
+    expect(manifest.display).toBe(display)
+    expect(manifest.theme_color).toBe(themeColor)
+  })
+})

components/ExportOptions.polish.ui.test.tsx

@@ -0,0 +1,64 @@
+import { describe, it, expect, vi } from 'vitest'
+import { render, screen, fireEvent } from '@testing-library/react'
+import BuilderClientPage from '@/components/BuilderClientPage'
+
+vi.mock('next-intl', () => {
+  return {
+    useTranslations: () => (key: string) => key,
+  }
+})
+
+const buildZipSpy = vi.fn(async (_arg: {
+  html: string
+  css: string
+  js: string
+  assets: Record<string, Uint8Array>
+  extras?: Record<string, Uint8Array>
+}) => new Uint8Array([80, 75]))
+
+vi.mock('@/lib/exporter/zip', () => {
+  return {
+    buildZip: (arg: {
+      html: string
+      css: string
+      js: string
+      assets: Record<string, Uint8Array>
+      extras?: Record<string, Uint8Array>
+    }) => buildZipSpy(arg),
+  }
+})
+
+describe('Export Options UI polish', () => {
+  it('uses a dropdown for Manifest Display and passes selected value', async () => {
+    render(<BuilderClientPage />)
+
+    // choose display = minimal-ui
+    const displaySelect = await screen.findByLabelText('Manifest Display')
+    fireEvent.change(displaySelect, { target: { value: 'minimal-ui' } })
+
+    const exportBtn = await screen.findByRole('button', { name: 'builder.action.export' })
+    fireEvent.click(exportBtn)
+
+    const first = buildZipSpy.mock.calls[0]
+    const extras: Record<string, Uint8Array> = (first![0] as { extras: Record<string, Uint8Array> }).extras
+    const td = new TextDecoder()
+    const manifest = JSON.parse(td.decode(extras['site.webmanifest']))
+    expect(manifest.display).toBe('minimal-ui')
+  })
+
+  it('ignores invalid theme_color override and keeps default theme when not a hex', async () => {
+    render(<BuilderClientPage />)
+
+    const colorInput = await screen.findByLabelText('Manifest Theme Color')
+    fireEvent.change(colorInput, { target: { value: 'blue' } }) // invalid hex
+
+    const exportBtn = await screen.findByRole('button', { name: 'builder.action.export' })
+    fireEvent.click(exportBtn)
+
+    const first = buildZipSpy.mock.calls[0]
+    const extras: Record<string, Uint8Array> = (first![0] as { extras: Record<string, Uint8Array> }).extras
+    const td = new TextDecoder()
+    const manifest = JSON.parse(td.decode(extras['site.webmanifest']))
+    expect(manifest.theme_color).toBe('#0ea5e9') // default from page.theme.primaryColor
+  })
+})

components/ExportOptions.ui.test.tsx

@@ -0,0 +1,60 @@
+import { describe, it, expect, vi } from 'vitest'
+import { render, screen, fireEvent } from '@testing-library/react'
+import BuilderClientPage from '@/components/BuilderClientPage'
+
+vi.mock('next-intl', () => {
+  return {
+    useTranslations: () => (key: string) => key,
+  }
+})
+
+const buildZipSpy = vi.fn(async (_arg: {
+  html: string
+  css: string
+  js: string
+  assets: Record<string, Uint8Array>
+  extras?: Record<string, Uint8Array>
+}) => new Uint8Array([80, 75]))
+
+vi.mock('@/lib/exporter/zip', () => {
+  return {
+    buildZip: (arg: {
+      html: string
+      css: string
+      js: string
+      assets: Record<string, Uint8Array>
+      extras?: Record<string, Uint8Array>
+    }) => buildZipSpy(arg),
+  }
+})
+
+describe('Export Options UI → extras overrides', () => {
+  it('passes manifest.name and robots Disallow to buildExtrasForPage via buildZip extras', async () => {
+    render(<BuilderClientPage />)
+
+    const manifestName = 'My App Custom'
+    const robotsDisallow = '/private\n/tmp'
+
+    const nameInput = await screen.findByLabelText('Manifest Name')
+    fireEvent.change(nameInput, { target: { value: manifestName } })
+
+    const robotsInput = await screen.findByLabelText('Robots Disallow')
+    fireEvent.change(robotsInput, { target: { value: robotsDisallow } })
+
+    const exportBtn = await screen.findByRole('button', { name: 'builder.action.export' })
+    fireEvent.click(exportBtn)
+
+    expect(buildZipSpy).toHaveBeenCalled()
+    const first = buildZipSpy.mock.calls[0]
+    expect(first && first[0]).toBeTruthy()
+    const extras: Record<string, Uint8Array> = (first![0] as { extras: Record<string, Uint8Array> }).extras
+    const td = new TextDecoder()
+    const manifestRaw = td.decode(extras['site.webmanifest'])
+    const robotsRaw = td.decode(extras['robots.txt'])
+    const manifest = JSON.parse(manifestRaw)
+
+    expect(manifest.name).toBe(manifestName)
+    expect(robotsRaw).toMatch(/Disallow: \/private/)
+    expect(robotsRaw).toMatch(/Disallow: \/tmp/)
+  })
+})

lib/exporter/extras.overrides.test.ts

@@ -0,0 +1,47 @@
+import { describe, it, expect } from 'vitest'
+import { pageSchema, type Page } from '@/lib/schema/page'
+import { buildExtrasForPage } from '@/lib/exporter/extras'
+
+function makePage(): Page {
+  return pageSchema.parse({
+    title: 'Overrides Demo',
+    locale: 'en',
+    theme: { primaryColor: '#123456', fontFamily: 'Inter' },
+    sections: [
+      { type: 'hero', props: { heading: 'Hello', subheading: 'World', imageUrl: 'https://img.example/hero.png' } },
+    ],
+    form: { actionUrl: '', fields: [], spamProtection: { honeypotFieldName: '_hp', minSubmitSeconds: 2 } },
+    seo: { title: 'Overrides', description: 'Desc' },
+  })
+}
+
+describe('extras overrides', () => {
+  it('allows overriding robots.txt content', () => {
+    const page = makePage()
+    const extras = buildExtrasForPage(page, {
+      robotsText: 'User-agent: *\nDisallow: /private',
+    })
+    const robots = new TextDecoder().decode(extras['robots.txt'])
+    expect(robots).toContain('Disallow: /private')
+  })
+
+  it('allows overriding manifest fields (name, short_name, start_url, display, theme_color)', () => {
+    const page = makePage()
+    const extras = buildExtrasForPage(page, {
+      manifest: {
+        name: 'Custom Name',
+        short_name: 'Custom',
+        start_url: '/home',
+        display: 'minimal-ui',
+        theme_color: '#abcdef',
+      },
+    })
+    const manifestRaw = new TextDecoder().decode(extras['site.webmanifest'])
+    const manifest = JSON.parse(manifestRaw)
+    expect(manifest.name).toBe('Custom Name')
+    expect(manifest.short_name).toBe('Custom')
+    expect(manifest.start_url).toBe('/home')
+    expect(manifest.display).toBe('minimal-ui')
+    expect(manifest.theme_color).toBe('#abcdef')
+  })
+})

lib/exporter/extras.ts

@@ -0,0 +1,81 @@
+import type { Page } from '@/lib/schema/page'
+
+type ExtrasOverrides = {
+  robotsText?: string
+  manifest?: Partial<{
+    name: string
+    short_name: string
+    start_url: string
+    display: string
+    theme_color: string
+  }>
+}
+
+// Sheets 템플릿 등 ZIP 루트/서브 경로에 포함할 추가 파일(extras)을 구성한다.
+// - actionUrl이 비어있을 때만 Google Apps Script 템플릿을 포함한다.
+export function buildExtrasForPage(page: Page, overrides?: ExtrasOverrides): Record<string, Uint8Array> {
+  const extras: Record<string, Uint8Array> = {}
+  const te = new TextEncoder()
+
+  // Always provide a baseline robots.txt
+  const robotsDefault = `User-agent: *\nDisallow:`
+  const robots = overrides?.robotsText ?? robotsDefault
+  extras['robots.txt'] = te.encode(robots)
+
+  // Provide a minimal site.webmanifest derived from Page
+  try {
+    const name = page.title || 'App'
+    const short = name.length > 12 ? name.slice(0, 12) : name
+    const manifest = {
+      name,
+      short_name: short,
+      start_url: '/',
+      display: 'standalone',
+      theme_color: page.theme?.primaryColor ?? '#000000',
+      ...((overrides?.manifest as object) || {}),
+    } as {
+      name: string
+      short_name: string
+      start_url: string
+      display: string
+      theme_color: string
+    }
+    extras['site.webmanifest'] = te.encode(JSON.stringify(manifest))
+  } catch {}
+
+  const hasAction = !!(page.form?.actionUrl && page.form.actionUrl.trim().length > 0)
+  if (!hasAction) {
+    const code = `// Google Apps Script (Code.gs)
+// - Web App 으로 배포 후, 아래 doPost 핸들러가 폼 데이터를 수신합니다.
+// - 시트에 저장하거나 이메일 전송 로직을 추가하세요.
+function doPost(e) {
+  try {
+    var data = e.parameter || {}
+    // TODO: 시트에 저장 예시
+    // var ss = SpreadsheetApp.getActiveSpreadsheet()
+    // var sheet = ss.getSheetByName('Responses') || ss.insertSheet('Responses')
+    // sheet.appendRow([new Date(), JSON.stringify(data)])
+    return ContentService.createTextOutput(JSON.stringify({ ok: true }))
+      .setMimeType(ContentService.MimeType.JSON)
+  } catch (err) {
+    return ContentService.createTextOutput(JSON.stringify({ ok: false, error: String(err) }))
+      .setMimeType(ContentService.MimeType.JSON)
+  }
+}
+`
+    const readme = `README (Google Sheets Apps Script 템플릿)
+
+1) Google Drive에서 새 스크립트(Apps Script) 프로젝트를 생성합니다.
+2) Code.gs 파일 내용을 붙여넣습니다.
+3) Deploy > New deployment > Web app 으로 배포합니다.
+   - Execute as: Me
+   - Who has access: Anyone
+4) 배포 URL을 복사하여 빌더의 Form action URL에 넣습니다.
+5) 필요한 경우 doPost에서 스프레드시트 저장 로직을 추가하세요.
+`
+    extras['sheets/Code.gs'] = te.encode(code)
+    extras['sheets/README.txt'] = te.encode(readme)
+  }
+
+  return extras
+}

lib/exporter/html.ts

@@ -124,7 +124,7 @@ function renderHero(section: { props: { heading: string; subheading?: string; im
           ${subheading.length > 0 ? `<p>${escapeHtml(subheading)}</p>` : ''}
         </div>
         <div class="media">
-          <img src="${escapeHtml(imageUrl)}" alt="${escapeHtml(heading)}" loading="lazy" decoding="async" />
+          <img src="${escapeHtml(imageUrl)}" alt="${escapeHtml(heading)}" loading="lazy" decoding="async" width="1200" height="675" />
         </div>
       </div>
     </section>
@@ -254,6 +254,9 @@ function buildHead(page: Page) {
     <meta charset="utf-8" />
     <meta name="viewport" content="width=device-width, initial-scale=1" />
     <link rel="canonical" href="/" />
+    <link rel="manifest" href="/site.webmanifest" />
+    <link rel="icon" href="/favicon.ico" />
+    <meta name="theme-color" content="${page.theme.primaryColor}" />
     <title>${escapeHtml(page.seo.title)}</title>
     <meta name="description" content="${escapeHtml(page.seo.description)}" />
     <meta property="og:title" content="${escapeHtml(page.seo.title)}" />

lib/exporter/manifest.link.tokens.test.ts

@@ -0,0 +1,21 @@
+import { describe, it, expect } from 'vitest'
+import { exportPage } from '@/lib/exporter/html'
+import { pageSchema, type Page } from '@/lib/schema/page'
+
+function makePage(): Page {
+  return pageSchema.parse({
+    title: 'Head Links',
+    locale: 'en',
+    theme: { primaryColor: '#2563eb', fontFamily: 'Inter' },
+    sections: [],
+    form: { actionUrl: '', fields: [], spamProtection: { honeypotFieldName: '_hp', minSubmitSeconds: 2 } },
+    seo: { title: 't', description: 'd' },
+  })
+}
+
+describe('Exporter - head 링크 토큰', () => {
+  it('site.webmanifest 링크를 포함한다', () => {
+    const out = exportPage(makePage())
+    expect(out.html).toMatch(/<link rel="manifest" href="\/site\.webmanifest"\s*\/>/)
+  })
+})

lib/exporter/manifest.robots.auto.test.ts

@@ -0,0 +1,37 @@
+import { describe, it, expect } from 'vitest'
+import { pageSchema, type Page } from '@/lib/schema/page'
+import { buildExtrasForPage } from '@/lib/exporter/extras'
+
+function makePage(overrides: Partial<Page> = {}): Page {
+  const base: Page = pageSchema.parse({
+    title: 'My Landing',
+    locale: 'en',
+    theme: { primaryColor: '#2563eb', fontFamily: 'Inter' },
+    sections: [],
+    form: { actionUrl: '', fields: [], spamProtection: { honeypotFieldName: '_hp', minSubmitSeconds: 2 } },
+    seo: { title: 'SEO Title', description: 'desc' },
+  })
+  return { ...base, ...overrides }
+}
+
+describe('extras 자동 생성: site.webmanifest / robots.txt', () => {
+  it('Page에서 파생된 site.webmanifest JSON과 robots.txt를 extras에 포함한다', async () => {
+    const page = makePage({ title: 'Awesome App', theme: { primaryColor: '#123456', fontFamily: 'Inter' } })
+    const extras = buildExtrasForPage(page)
+
+    // robots.txt 존재 및 베이스라인 확인
+    expect(Object.keys(extras)).toContain('robots.txt')
+    const robots = new TextDecoder().decode(extras['robots.txt'])
+    expect(robots).toMatch(/User-agent: \*/)
+
+    // manifest 존재 및 필수 키 확인
+    expect(Object.keys(extras)).toContain('site.webmanifest')
+    const manifestStr = new TextDecoder().decode(extras['site.webmanifest'])
+    const manifest = JSON.parse(manifestStr)
+    expect(manifest.name).toBe('Awesome App')
+    expect(manifest.short_name.length).toBeGreaterThan(0)
+    expect(manifest.start_url).toBe('/')
+    expect(manifest.display).toBe('standalone')
+    expect(manifest.theme_color).toBe('#123456')
+  })
+})

lib/exporter/seoPerf.themeColor.heroDims.test.ts

@@ -0,0 +1,31 @@
+import { describe, it, expect } from 'vitest'
+import { exportPage } from '@/lib/exporter/html'
+import { pageSchema, type Page } from '@/lib/schema/page'
+
+function makePage(): Page {
+  return pageSchema.parse({
+    title: 'SEO/Perf 2',
+    locale: 'en',
+    theme: { primaryColor: '#0ea5e9', fontFamily: 'Inter' },
+    sections: [
+      { type: 'hero', props: { heading: 'Hello', subheading: 'World', imageUrl: 'https://img.example/hero.png' } },
+    ],
+    form: { actionUrl: '', fields: [], spamProtection: { honeypotFieldName: '_hp', minSubmitSeconds: 2 } },
+    seo: { title: 'SEO2', description: 'Desc2' },
+  })
+}
+
+describe('Exporter - theme-color meta and hero image intrinsic size', () => {
+  it('includes theme-color meta using page.theme.primaryColor', () => {
+    const out = exportPage(makePage())
+    const html = out.html
+    expect(html).toMatch(/<meta name="theme-color" content="#0ea5e9"\s*\/>/)
+  })
+
+  it('renders hero image with width/height attributes for CLS reduction', () => {
+    const out = exportPage(makePage())
+    const html = out.html
+    expect(html).toMatch(/<img[^>]*\swidth="[0-9]+"/)
+    expect(html).toMatch(/<img[^>]*\sheight="[0-9]+"/)
+  })
+})

lib/exporter/sheets.template.test.ts

@@ -0,0 +1,47 @@
+import { describe, it, expect } from 'vitest'
+import { buildZip } from '@/lib/exporter/zip'
+import { exportPage } from '@/lib/exporter/html'
+import { pageSchema, type Page } from '@/lib/schema/page'
+import { buildExtrasForPage } from '@/lib/exporter/extras'
+
+function makePageNoAction(): Page {
+  return pageSchema.parse({
+    title: 'Sheets Tpl',
+    locale: 'en',
+    theme: { primaryColor: '#2563eb', fontFamily: 'Inter' },
+    sections: [ { type: 'hero', props: { heading: 'Hello', subheading: 'World', imageUrl: 'https://img/h.png' } } ],
+    form: { actionUrl: '', fields: [ { type: 'text', name: 'email', label: 'Email', required: true } ], spamProtection: { honeypotFieldName: '_hp', minSubmitSeconds: 2 } },
+    seo: { title: 't', description: 'd' },
+  })
+}
+
+function makePageWithAction(): Page {
+  return pageSchema.parse({
+    title: 'Sheets Off',
+    locale: 'en',
+    theme: { primaryColor: '#2563eb', fontFamily: 'Inter' },
+    sections: [ { type: 'hero', props: { heading: 'Hello', subheading: 'World', imageUrl: 'https://img/h.png' } } ],
+    form: { actionUrl: 'https://example.com/submit', fields: [], spamProtection: { honeypotFieldName: '_hp', minSubmitSeconds: 2 } },
+    seo: { title: 't', description: 'd' },
+  })
+}
+
+describe('Sheets 템플릿 Export', () => {
+  it('actionUrl 미지정 시 extras에 Sheets 템플릿 파일을 포함한다', async () => {
+    const page = makePageNoAction()
+    const extras = buildExtrasForPage(page)
+    expect(Object.keys(extras)).toContain('sheets/Code.gs')
+    expect(Object.keys(extras)).toContain('sheets/README.txt')
+
+    const out = exportPage(page)
+    const zipBytes = await buildZip({ html: out.html, css: out.css, js: out.js, assets: {}, extras })
+    expect(zipBytes.byteLength).toBeGreaterThan(0)
+  })
+
+  it('actionUrl 지정 시 extras에는 Sheets 템플릿이 포함되지 않는다', () => {
+    const page = makePageWithAction()
+    const extras = buildExtrasForPage(page)
+    expect(Object.keys(extras)).not.toContain('sheets/Code.gs')
+    expect(Object.keys(extras)).not.toContain('sheets/README.txt')
+  })
+})

lib/exporter/zip.validation.phase5.test.ts

@@ -0,0 +1,40 @@
+import { describe, it, expect } from 'vitest'
+import JSZip from 'jszip'
+import { exportPage } from '@/lib/exporter/html'
+import { buildZip } from '@/lib/exporter/zip'
+import { buildExtrasForPage } from '@/lib/exporter/extras'
+import { pageSchema, type Page } from '@/lib/schema/page'
+
+function makePage(): Page {
+  return pageSchema.parse({
+    title: 'Phase5',
+    locale: 'en',
+    theme: { primaryColor: '#2563eb', fontFamily: 'Inter' },
+    sections: [],
+    form: { actionUrl: '', fields: [], spamProtection: { honeypotFieldName: '_hp', minSubmitSeconds: 2 } },
+    seo: { title: 't', description: 'd' },
+  })
+}
+
+describe('Export ZIP 검증 강화 5차: extras MIME/내용 검증', () => {
+  it('robots.txt는 텍스트이고, site.webmanifest는 유효한 JSON이다', async () => {
+    const page = makePage()
+    const out = exportPage(page)
+    const extras = buildExtrasForPage(page)
+
+    const zipBytes = await buildZip({ html: out.html, css: out.css, js: out.js, assets: {}, extras })
+    const zip = await JSZip.loadAsync(zipBytes)
+
+    // robots.txt 존재 및 텍스트 확인
+    expect(Object.keys(zip.files)).toContain('robots.txt')
+    const robots = await zip.files['robots.txt'].async('string')
+    expect(robots).toMatch(/User-agent: \*/) // baseline
+
+    // site.webmanifest 존재 및 JSON 파싱 가능
+    expect(Object.keys(zip.files)).toContain('site.webmanifest')
+    const manifestStr = await zip.files['site.webmanifest'].async('string')
+    const parsed = JSON.parse(manifestStr)
+    expect(parsed.start_url).toBe('/')
+    expect(parsed.display).toBe('standalone')
+  })
+})