chore(dashboard,db): prepping for migration time

apps/dashboard/src/app/maintenance/page.tsx

@@ -0,0 +1,18 @@
+import { CalendarCogIcon } from 'lucide-react';
+
+export default function Maintenance() {
+  return (
+    <div className="h-screen w-full center-center overflow-hidden">
+      <div className="relative z-10 col gap-2 center-center">
+        <CalendarCogIcon className="size-32 mb-4 animate-wiggle text-def-300" />
+        <div className="text-[150px] font-mono font-bold -mb-16 leading-[1] select-none pointer-events-none whitespace-nowrap bg-gradient-to-b from-def-300 to-def-100 bg-clip-text text-transparent">
+          Oh no!
+        </div>
+        <h1 className="text-6xl font-bold">Maintenance</h1>
+        <p className="text-xl text-muted-foreground">
+          We&apos;re doing a planned maintenance. Please check back later.
+        </p>
+      </div>
+    </div>
+  );
+}