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

lib/state/store.ts

@@ -0,0 +1,42 @@
+import { createStore } from 'zustand/vanilla'
+
+export type HeroSection = { type: 'hero'; props: { heading?: string; subheading?: string } }
+export type FaqSection = { type: 'faq'; props: { items: Array<{ q: string; a: string }> } }
+export type CtaSection = { type: 'cta'; props: { text: string; href?: string } }
+export type FeaturesSection = { type: 'features'; props: { items: string[] } }
+export type TestimonialsSection = { type: 'testimonials'; props: { items: Array<{ author: string; quote: string }> } }
+
+export type Section = HeroSection | FaqSection | CtaSection | FeaturesSection | TestimonialsSection
+
+export type BuilderState = {
+  locale: string
+  sections: Section[]
+  addSection: (s: Section) => void
+  moveSection: (from: number, to: number) => void
+  removeSection: (index: number) => void
+  setLocale: (loc: string) => void
+}
+
+export function createBuilderStore() {
+  return createStore<BuilderState>((set, get) => ({
+    locale: 'en',
+    sections: [],
+    addSection: (s) => set((st) => ({ sections: [...st.sections, s] })),
+    moveSection: (from, to) =>
+      set((st) => {
+        const arr = [...st.sections]
+        if (from < 0 || from >= arr.length || to < 0 || to >= arr.length) return st
+        const [spliced] = arr.splice(from, 1)
+        arr.splice(to, 0, spliced)
+        return { sections: arr }
+      }),
+    removeSection: (index) =>
+      set((st) => {
+        if (index < 0 || index >= st.sections.length) return st
+        const arr = st.sections.slice()
+        arr.splice(index, 1)
+        return { sections: arr }
+      }),
+    setLocale: (loc) => set({ locale: loc }),
+  }))
+}