Ultrono Arena Rust Windows client preview

Build ref: 90e0143caeb4b9dc2a9c2a4b95fe640748048a00
Built at UTC: 20260703T070416Z

Run ua-client.exe from this directory so the client can find map, texture, font,
and sound assets. The run-public-server.cmd launcher connects to 3.77.70.103:15050.
