new proxy implementation with Gin framework

- Created a new proxy structure under NewProxy/ using the Gin web framework.
- Added main entry point (main.go) to register and run routes.
- Implemented new route handlers for:
 > Status — monitors active downloads and total data transferred.
 > Forward — handles proxy forwarding logic.
 > Builds — manages build-related requests.

NewProxy/data/release.json

@@ -0,0 +1,4 @@
+{
+  "release_version": "v1.2.3",
+  "release_time": "2025-10-19T22:00:00Z"
+}