Done

app/Http/Middleware/HandleInertiaRequests.php

@@ -2,8 +2,10 @@
 
 namespace App\Http\Middleware;
 
+use App\Models\Category;
 use Illuminate\Http\Request;
 use Inertia\Middleware;
+use Tighten\Ziggy\Ziggy;
 
 class HandleInertiaRequests extends Middleware
 {
@@ -41,7 +43,18 @@ class HandleInertiaRequests extends Middleware
             'auth' => [
                 'user' => $request->user(),
             ],
-            'sidebarOpen' => ! $request->hasCookie('sidebar_state') || $request->cookie('sidebar_state') === 'true',
+            'navigation_categories' => fn () => $request->user()
+                ? Category::query()
+                    ->where('user_id', $request->user()->id)
+                    ->whereNull('parent_id')
+                    ->with('children:id,parent_id,title')
+                    ->orderBy('title')
+                    ->get(['id', 'parent_id', 'title'])
+                : [],
+            'ziggy' => fn () => [
+                ...new Ziggy()->toArray(),
+                'location' => $request->url(),
+            ]
         ];
     }
 }