feat: add UI component files and navigation structure

Added various UI components and navigation elements including:
- Section cards and selection components
- Social icon SVGs with horizontal/vertical text variants
- Table, tabs, and toggle components
- Site header and sidebar components
- Tooltip and unauthorized page
- Project configuration files (tsconfig.json)
- Route handlers for health checks
- Utility and hook functions for mobile responsiveness

app/unauthorized.tsx

@@ -0,0 +1,25 @@
+import { Lock } from "lucide-react"
+
+import { Card, CardContent, CardDescription, CardHeader, CardTitle } from "@/components/ui/card"
+
+export default function Unauthorized() {
+  return (
+    <div className="flex min-h-[80vh] items-center justify-center">
+      <Card className="w-full max-w-md">
+        <CardHeader className="space-y-1">
+          <div className="flex items-center gap-2">
+            <Lock className="h-6 w-6 text-amber-500" />
+            <CardTitle className="text-2xl">Unauthorized Access</CardTitle>
+          </div>
+          <CardDescription>Please log in to access this page</CardDescription>
+        </CardHeader>
+        <CardContent className="space-y-4">
+          <div className="text-muted-foreground border-b pb-4 text-sm">
+            <p>You need to be authenticated to view the requested resource.</p>
+            <p className="mt-2 font-semibold">Error 401</p>
+          </div>
+        </CardContent>
+      </Card>
+    </div>
+  )
+}