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

components/BuilderClientPage.inspector.test.tsx

@@ -0,0 +1,34 @@
+import { describe, it, expect } from 'vitest'
+import { render, screen, fireEvent } from '@testing-library/react'
+import React from 'react'
+import { NextIntlClientProvider } from 'next-intl'
+import enMessages from '@/messages/en.json'
+import BuilderClientPage from '@/components/BuilderClientPage'
+
+const messages: Record<string, string> = enMessages as Record<string, string>
+
+describe('BuilderClientPage - Inspector panel', () => {
+  it('섹션 선택 후 인스펙터에서 Hero heading을 편집할 수 있다', () => {
+    render(
+      <NextIntlClientProvider locale="en" messages={messages}>
+        <BuilderClientPage />
+      </NextIntlClientProvider>
+    )
+
+    // Hero 섹션 추가 (data-testid 사용)
+    fireEvent.click(screen.getByTestId('btn-add-hero'))
+
+    // 캔버스에서 첫 섹션 선택
+    fireEvent.click(screen.getByLabelText('Select 0'))
+
+    // 인스펙터에서 Hero Heading 입력 존재
+    const heading = screen.getByLabelText('Hero Heading') as HTMLInputElement
+    expect(heading).toBeInTheDocument()
+    // 기본값 존재(Welcome)
+    expect(heading.value).toBeTruthy()
+
+    // 값 변경
+    fireEvent.change(heading, { target: { value: 'Hello World' } })
+    expect((screen.getByLabelText('Hero Heading') as HTMLInputElement).value).toBe('Hello World')
+  })
+})