feat: add quick-create functionality for client categories in the schedule form

app/Http/Controllers/ClientCategoryController.php

@@ -46,6 +46,22 @@ class ClientCategoryController extends Controller
         return back()->with('success', '🏷️ Category added!');
     }
 
+    public function quickStore(Request $request): \Illuminate\Http\JsonResponse
+    {
+        $validated = $request->validate([
+            'name' => 'required|string|max:100',
+        ]);
+
+        $validated['slug'] = \Illuminate\Support\Str::slug($validated['name']);
+        if (ClientCategory::where('slug', $validated['slug'])->exists()) {
+            $validated['slug'] .= '-' . substr(uniqid(), -4);
+        }
+
+        $category = ClientCategory::create($validated);
+
+        return response()->json(['id' => $category->id, 'name' => $category->name, 'icon' => '🏷️']);
+    }
+
     public function update(Request $request, ClientCategory $category): RedirectResponse
     {
         $validated = $request->validate([