refactor: Migrate documentation content, rebuild UI components, and update core architecture.

components/markdown/AccordionContext.tsx

@@ -0,0 +1,21 @@
+import { createContext, useState, useId } from "react"
+
+type AccordionGroupContextType = {
+  inGroup: boolean
+  groupId: string
+  openTitle: string | null
+  setOpenTitle: (title: string | null) => void
+}
+
+export const AccordionGroupContext = createContext<AccordionGroupContextType | null>(null)
+
+export function AccordionGroupProvider({ children }: { children: React.ReactNode }) {
+  const [openTitle, setOpenTitle] = useState<string | null>(null)
+  const groupId = useId()
+
+  return (
+    <AccordionGroupContext.Provider value={{ inGroup: true, groupId, openTitle, setOpenTitle }}>
+      {children}
+    </AccordionGroupContext.Provider>
+  )
+}