Fix: CardDAV sync broke when todo items didn't have a creation date. Also fixed todos without a due date not being displays and wrong calculation of warning badge states.

app/Http/Controllers/TodoController.php

@@ -19,7 +19,7 @@ public function index()
      * Display a listing of the resource.
      * @param Request $request
      * @param string $modelType The type of the model (e.g., 'Customer', 'Invoice')
-     * @param string $modelId The ID of the model
+     * @param int $modelId The ID of the model
      * @return \Illuminate\Http\JsonResponse
      */
     public function todosForModel(Request $request, string $modelType, int $modelId)
@@ -27,9 +27,12 @@ public function todosForModel(Request $request, string $modelType, int $modelId)
         $model = app("App\\Models\\" . $modelType)::findOrFail($modelId);
 
         // Load all todos of the model with the user relationship
-        $todos = $model->todos()->with('type')->orderBy('created_at', 'desc')->get();
+        $todos = $model->todos()
+            ->with('type')
+            ->orderBy('created_at', 'desc')
+            ->get();
 
-        // Transformiere die Daten in camelCase
+        // Transform data to camelCase
         $notesArray = $todos->map(function ($todo) {
             return ApiDataTransformer::snakeToCamel($todo->toArray());
         });