fix: force dynamic rendering to skip static prerendering

Add `export const dynamic = 'force-dynamic'` to root layout so all
pages are rendered at request time instead of build time. Fixes
useContext null error during Docker build prerendering.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

src/app/layout.tsx

@@ -9,6 +9,8 @@ import '@mantine/notifications/styles.css';
 import { Lato } from "next/font/google";
 import { Toaster } from 'react-hot-toast';
 
+export const dynamic = 'force-dynamic';
+
 export const metadata = {
   title: "SISTEM DESA MANDIRI",
   description: "I have followed setup instructions carefully",