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

components/ThemeProvider.tsx

@@ -0,0 +1,8 @@
+"use client";
+
+import { ThemeProvider as NextThemesProvider } from "next-themes";
+import { type ThemeProviderProps } from "next-themes";
+
+export function ThemeProvider({ children, ...props }: ThemeProviderProps) {
+  return <NextThemesProvider {...props}>{children}</NextThemesProvider>;
+}