chore: add project files and setup gitignore

reserva-mesa-dashboard/components/dashboard/UserNav.tsx

@@ -0,0 +1,20 @@
+"use client";
+
+import { useAuth } from "@/hooks/useAuth";
+import { User } from "lucide-react";
+
+export function UserNav() {
+  const { user } = useAuth();
+
+  return (
+    <div className="flex items-center gap-3">
+      <div className="hidden text-right md:block">
+        <p className="text-sm font-medium text-foreground">{user?.ownerName || "Administrador"}</p>
+        <p className="text-xs text-muted-foreground">{user?.email}</p>
+      </div>
+      <div className="h-10 w-10 rounded-full bg-primary/10 flex items-center justify-center border border-primary/20">
+        <User className="h-5 w-5 text-primary" />
+      </div>
+    </div>
+  );
+}