add player state tracking: introduce State field to room struct, include state in player updates

pkg/server/room.go

@@ -30,6 +30,7 @@ type ServerPlayer struct {
 	BonusScore       int // Score aus Coins und anderen Boni
 	IsAlive          bool
 	IsSpectator      bool
+	State            string // Aktueller State (z.B. Emote)
 
 	// Powerups
 	HasDoubleJump     bool      // Doppelsprung aktiv?
@@ -913,6 +914,7 @@ func (r *Room) Broadcast() {
 			Y:                          p.Y,
 			VX:                         p.VX,
 			VY:                         p.VY,
+			State:                      p.State,
 			OnGround:                   p.OnGround,
 			OnWall:                     p.OnWall,
 			LastInputSeq:               p.LastInputSeq,