feat: add form data handler in the sdk middleware module

docs/content/3.middleware/2.guides/2.getting-started.md

@@ -129,7 +129,7 @@ fileUpload: (req) => ({
 
 Available options:
 
-- `enabled`: Enable/disable file upload functionality (default: `true`)
+- `enabled`: Enable/disable file upload functionality (default: `false`)
 - `maxFileSize`: Maximum file size in bytes (default: 5MB) // Maximum file size is limited to 10MB
 - `maxFiles`: Maximum number of files per upload (default: 5)
 - `allowedMimeTypes`: Array of allowed MIME types (default: `["image/*", "application/pdf"]`)
@@ -148,6 +148,8 @@ export const upload = (context) => {
 };
 ```
 
+For the performance reasons, file uploads are disabled by default. It is recommended to enable them only when needed and use headers to control file upload behavior.
+
 You can also dynamically control file upload behavior on a per-request basis. This is particularly useful when you want to enable uploads only for specific scenarios, such as:
 
 - Authenticated requests