feat(web): add SessionWatcher component for session management and handle session expiration

apps/web/app/dashboard/layout.tsx

@@ -1,10 +1,12 @@
 import { ReactNode } from "react";
 import Sidebar from "@/components/sidebar";
 import { ReactQueryProvider } from "@/components/query-provider";
+import { SessionWatcher } from "@/components/session-watcher";
 
 export default function DashboardLayout({ children }: { children: ReactNode }) {
   return (
     <div className="flex h-dvh bg-background">
+      <SessionWatcher />
       <Sidebar />
 
       {/* Main content */}