refactor: Optimize file path concatenation and remove unused imports in LoopOperations

Author: rcalicdan

src/Handlers/File/FileOperationHandler.php

@@ -240,7 +240,7 @@ private function removeDirectoryRecursive(string $dir): void
 
         $files = array_diff(scandir($dir), ['.', '..']);
         foreach ($files as $file) {
-            $path = $dir . DIRECTORY_SEPARATOR . $file;
+            $path = $dir.DIRECTORY_SEPARATOR.$file;
             if (is_dir($path)) {
                 $this->removeDirectoryRecursive($path);
             } else {

src/LoopOperations.php

@@ -6,11 +6,9 @@
 use Rcalicdan\FiberAsync\Contracts\PromiseInterface;
 use Rcalicdan\FiberAsync\Handlers\LoopOperations\BenchmarkHandler;
 use Rcalicdan\FiberAsync\Handlers\LoopOperations\ConcurrentExecutionHandler;
-use Rcalicdan\FiberAsync\Handlers\LoopOperations\HttpExecutionHandler;
 use Rcalicdan\FiberAsync\Handlers\LoopOperations\LoopExecutionHandler;
 use Rcalicdan\FiberAsync\Handlers\LoopOperations\TaskExecutionHandler;
 use Rcalicdan\FiberAsync\Handlers\LoopOperations\TimeoutHandler;
-use Rcalicdan\FiberAsync\Http\Response;
 
 /**
  * High-level operations that manage the event loop lifecycle automatically.