fix: PHPStan PostGetNavigation

Author: thuankg1752

src/Http/Actions/Post/PostGetNavigateAction.php

@@ -129,6 +129,8 @@ public function __invoke(string $slug): BaseHttpResponse|JsonResponse|JsonResour
         }
 
         // At this point, $currentPost is guaranteed to be a Post instance
+        /** @var Post $currentPost */
+        
         // Using service method for complex business logic
         $navigationPosts = $this->postService->getNavigationPosts($currentPost);
 

src/Services/PostService.php

@@ -46,12 +46,8 @@ public function getCustomFilters(array $filters): LengthAwarePaginator
      *
      * @return array{previous: null|Post, next: null|Post}
      */
-    public function getNavigationPosts(?Post $currentPost): array
+    public function getNavigationPosts(Post $currentPost): array
     {
-        if (!$currentPost instanceof Post) {
-            throw new \InvalidArgumentException("Expected a Post instance.");
-        }
-
         $currentId = $currentPost->id;
 
         // Get previous post (ID smaller than current, order by ID desc to get the closest one)