PR #4198 made the spawn-phase timer count down numSpawnPhaseTurns(), but
singleplayer never adds SpawnTimerExecution (GameRunner.ts), so its spawn
phase doesn't end on a timer — it ends when the player spawns. The
countdown would tick to 0 at ~10s while the phase kept going.
In GameRightSidebar.tick(), restore the old static display (maxTimerValue
* 60, or 0 when unset) during spawn phase for Singleplayer games, leaving
the countdown for all other game types. Uses an explicit gameType check
rather than _isSinglePlayer so replays of multiplayer games still count
down.
evanpelle
cb9cab9aca