add kostenerstattungs-assistent with checklist, pdf export

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

src/routes/__root.tsx

@@ -20,6 +20,12 @@ export const Route = createRootRoute({
 					>
 						Kontakte
 					</Link>
+					<Link
+						to="/antrag"
+						className="flex-1 py-3 text-center text-sm [&.active]:font-bold [&.active]:text-primary"
+					>
+						Antrag
+					</Link>
 				</div>
 			</nav>
 		</div>