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

lib/state/store.test.ts

@@ -0,0 +1,33 @@
+import { describe, it, expect } from 'vitest'
+import { createBuilderStore, type Section } from '@/lib/state/store'
+
+describe('builder store (zustand)', () => {
+  it('섹션 추가/이동/삭제와 로케일 변경을 지원한다', () => {
+    const useStore = createBuilderStore()
+    const s1: Section = { type: 'hero', props: { heading: 'H1' } }
+    const s2: Section = { type: 'faq', props: { items: [] } }
+    const s3: Section = { type: 'cta', props: { text: 'Go' } }
+
+    // 초기 상태
+    expect(useStore.getState().locale).toBe('en')
+    expect(useStore.getState().sections.length).toBe(0)
+
+    // 추가
+    useStore.getState().addSection(s1)
+    useStore.getState().addSection(s2)
+    useStore.getState().addSection(s3)
+    expect(useStore.getState().sections.map(s => s.type)).toEqual(['hero','faq','cta'])
+
+    // 이동 (index 0 -> 2)
+    useStore.getState().moveSection(0, 2)
+    expect(useStore.getState().sections.map(s => s.type)).toEqual(['faq','cta','hero'])
+
+    // 삭제 (index 1: 'cta')
+    useStore.getState().removeSection(1)
+    expect(useStore.getState().sections.map(s => s.type)).toEqual(['faq','hero'])
+
+    // 로케일 변경
+    useStore.getState().setLocale('ko')
+    expect(useStore.getState().locale).toBe('ko')
+  })
+})