Fetch libsteam_api.so (SDK redist mirror, export-verified) and
steamclient+tier0/vstdlib (SteamCMD app 1007) and stage them into
ReSkateServer-Linux-<version>, mirroring the Windows zip's DLLs.
- console reader: poll()+read() instead of iostream getline; joinable
thread joined before Steam shutdown/exit (iostream lock deadlock
needed Ctrl+D before)
- README: Linux dedicated-server setup guide
- CI: version input, tag builds, ReSkateServer-Linux-<version> asset
with setup script staged at top level
- workflow built only dingosdk_server so ctest binaries missing (Not Run)
- build all targets before ctest
- layers: read works on Linux, export needs Windows game + Oodle;
document player-cache copy path
juan