fix(client): Fix socket hanging issues and add auto-drain feature

- Fixed socket hanging issues caused by unconsumed response bodies
- Added automatic response body draining to prevent socket pool exhaustion
- Made auto-drain configurable via autoDrain() method (enabled by default)
- Updated all tests to properly consume response bodies
- Enhanced documentation about response body consumption

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@push.rocks/smartrequest",
-  "version": "4.2.0",
+  "version": "4.2.1",
   "private": false,
   "description": "A module for modern HTTP/HTTPS requests with support for form data, file uploads, JSON, binary data, streams, and more.",
   "exports": {