[Crash] Unchecked roomFound.ready/playerCount/playerLimit in joinGame

[coderabbitai]

Summary

Game server crashes when roomFound object is missing expected properties.

Affected Code

server-game/start-game.js:98-101

if (roomFound) {
  if ((roomFound.ready) && roomFound.playerCount >= roomFound.playerLimit) {
    // CRASH if roomFound.playerCount or roomFound.playerLimit undefined
    ws.close(Comm.Close.gameFull);

Vulnerability

If RoomManager.searchRooms returns incomplete room object.

Impact

• Game server crash on join attempt
• Denial of service

Recommended Fix

if (roomFound?.ready && 
    typeof roomFound.playerCount === 'number' && 
    typeof roomFound.playerLimit === 'number' &&
    roomFound.playerCount >= roomFound.playerLimit) {

References

• PR: New Blocks & Ported fancyMuzzle flash #43