- Remove the duplicate _gameMode declaration in the client SocketHandlers
object literal — it was declared twice, so the later `null` silently
shadowed the earlier `'free'`. Now declared once with the effective value.
- Remove the dead SocketHandlers._appendMessage calls in smirkAuth.js; that
method never existed, so the guard always fell through to the working
.text() append. Keep the safe append.
- Gate broadcastManager's high-volume per-event logs (user count, chat message
incl. message/socketId PII, game update, game start) behind debug mode;
previously they logged on every event regardless of NODE_ENV.
Full suite: 21 suites / 155 tests.
jwinterm