The "system" TUN stack that shelled out to a bundled tun2socks binary is
long-dead — Flutter already hardcodes the native OSTP stack — and only
bloats the build.
- ostp-jni: drop the tun2socks spawn branch and the tun_child handle;
the native TUN (run_native_tunnel_from_fd) is now unconditional. The
JNI signature is kept ABI-stable (t2sBinPath/localProxy retained but
ignored) to avoid breaking the Kotlin linkage without an Android build.
- Delete the committed 10 MB tun2socks-arm64 asset; drop the tun2socks
download steps from the Android build scripts.
- Remove the dead tun2socks.exe entry from the desktop build_dist.js
(it required a file nothing downloads, breaking the GUI dist build).
- Reword stale tun2socks references in proxy.rs, the GUI config comment,
install.ps1, the release workflow matrix, and CONTRIBUTING.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
ospab