File test_multiplayer_auth.cpp

tests/unit/engine/Poseidon/Network/test_multiplayer_auth.cpp:None–None

// MachineIdToPlayerId - the non-Steam multiplayer identity hash.
// The client sends this decimal id as identity.id; the server round-trips it
// through _atoi64 and the decimal ban.txt, so the value must be deterministic,
// positive, fit a signed int64, dodge the 0/999 sentinels, and be insensitive to