chore(06-01): delete NavBar.tsx — replaced by AdminSidebar

- NavBar is no longer imported anywhere (layout.tsx updated in prior task)
- tsc --noEmit and npm run build both pass clean

src/components/admin/NavBar.tsx

@@ -1,44 +0,0 @@
-"use client";
-
-import Link from "next/link";
-import { signOut } from "next-auth/react";
-import { Button } from "@/components/ui/button";
-
-export function NavBar() {
-  return (
-    <nav className="bg-[#1A463C] px-6 py-3 flex items-center justify-between">
-      <div className="flex items-center gap-6">
-        <span className="font-bold text-white tracking-tight">iamcavalli</span>
-        <Link href="/admin" className="text-sm text-white/70 hover:text-white transition-colors">
-          Clienti
-        </Link>
-        <Link href="/admin/projects" className="text-sm text-white/70 hover:text-white transition-colors">
-          Progetti
-        </Link>
-        <Link href="/admin/analytics" className="text-sm text-white/70 hover:text-white transition-colors">
-          Statistiche
-        </Link>
-        <Link href="/admin/forecast" className="text-sm text-white/70 hover:text-white transition-colors">
-          Forecast
-        </Link>
-        <Link href="/admin/catalog" className="text-sm text-white/70 hover:text-white transition-colors">
-          Catalogo
-        </Link>
-        <Link href="/admin/offers" className="text-sm text-white/70 hover:text-white transition-colors">
-          Offerte
-        </Link>
-        <Link href="/admin/impostazioni" className="text-sm text-white/70 hover:text-white transition-colors">
-          Impostazioni
-        </Link>
-      </div>
-      <Button
-        variant="ghost"
-        size="sm"
-        onClick={() => signOut({ callbackUrl: "/admin/login" })}
-        className="text-sm text-white/70 hover:text-white hover:bg-white/10"
-      >
-        Esci
-      </Button>
-    </nav>
-  );
-}