refactor(core): remove silent error suppression operators across repository

- Removed all @ operators from file and IO functions
- Prevents hidden runtime errors
- Improves debugging and observability across the codebase

Compliance:
- No logic changes
- No breaking changes
- Repository-wide cleanup applied

Co-authored-by: Maatify <130119162+Maatify@users.noreply.github.com>

Author: google-labs-jules[bot]

uploader/DownloadStreamFile.php

@@ -20,17 +20,17 @@ public function DownloadFile(): void
         }else{
             $file_type = strtolower(pathinfo((string)$this->file_path, PATHINFO_EXTENSION));
             header('Content-Disposition: attachment;filename="' . $this->file_saved_name . '-' . time() . '.' . $file_type . '"');
-            $file = @fopen((string)$this->file_path, "rb");
+            $file = fopen((string)$this->file_path, "rb");
             if ($file) {
                 while (! feof($file)) {
                     print(fread($file, 1024 * 8));
                     flush();
                     if (connection_status() != 0) {
-                        @fclose($file);
+                        fclose($file);
                         die();
                     }
                 }
-                @fclose($file);
+                fclose($file);
             }
         }
     }

uploader/UploadBase.php

@@ -44,7 +44,7 @@ protected function pushToStorage(string $localPath, string $relativePath): void
             return;
         }
         $this->storageAdapter->upload($localPath, $relativePath);
-        @unlink($localPath);
+        unlink($localPath);
     }
     /**
      * Set the upload folder.

uploader/UploadFolderCreate.php

@@ -17,15 +17,15 @@ protected function creatUploadFolder(): void
     {
         if (! file_exists($this->upload_folder)) {
             mkdir($this->upload_folder);
-            $f = @fopen($this->upload_folder . '/index.php', 'a+');
+            $f = fopen($this->upload_folder . '/index.php', 'a+');
             if ($f) {
-                @fputs(
+                fputs(
                     $f,
                     '<?php' . PHP_EOL
                     . 'header("Location: https://" . $_SERVER[\'HTTP_HOST\'] . "/404.php");'
                     . PHP_EOL
                 );
-                @fclose($f);
+                fclose($f);
             }
         }
     }