VPNclient App — Design Prototype (mocked)

This is a design-only prototype derived from the original VPNclient-app Flutter codebase. Structure, file names and procedure names are unchanged; only the calls into the real native VPN engine were replaced with mocks so the UI can run standalone, with no real network/VPN behavior.

What changed

• lib/pages/main/main_btn.dart now imports lib/mock/vpnclient_engine_mock.dart instead of package:vpnclient_engine_flutter. The mock class is named VPNclientEngine and exposes the same static methods used by the UI (connect, disconnect, addSubscription, ClearSubscriptions, updateSubscription, pingServer, onPingResult) — each just waits a short delay and/or emits fake data instead of doing real work.
• pubspec.yaml no longer depends on the vpnclient_engine_flutter git package.
• Server list, app list and ping/speed numbers are the same static/mock data the original screens already used or generate locally — no backend calls.
• Native platform folders (android/ios/macos/windows/linux) were not included — this package is meant to run via flutter run -d chrome (the web/ folder is included) or flutter run after flutter create . to regenerate platform scaffolding.

Run

flutter pub get
flutter run -d chrome