fix: check if 'actionDocBlock' is null (#43)

Author: mergehez

src/Builders/Paths/OperationsBuilder.php

@@ -76,8 +76,8 @@ public function build(array|Collection $routes): array
                 ->action(Str::lower($operationAttribute->method ?: $route->method))
                 ->tags(...$tags)
                 ->deprecated($this->isDeprecated($route->actionDocBlock))
-                ->description($route->actionDocBlock->getDescription()->render() !== '' ? $route->actionDocBlock->getDescription()->render() : null)
-                ->summary($route->actionDocBlock->getSummary() !== '' ? $route->actionDocBlock->getSummary() : null)
+                ->description($route->actionDocBlock?->getDescription()->render() ?: null)
+                ->summary($route->actionDocBlock?->getSummary() ?: null)
                 ->operationId($operationId)
                 ->parameters(...$parameters)
                 ->requestBody($requestBody)