feat: Implement the main game scene, orchestrating manager initialization, UI setup, network integration, and in-game message bar.

scenes/main.gd

@@ -1368,6 +1368,12 @@ func sync_leaderboard_data(player_data: Array):
 				score_label.text = str(data.score)
 			
 			entry.visible = true
+			
+			# Highlight check
+			if data.peer_id == multiplayer.get_unique_id():
+				entry.modulate = Color(1.0, 1.0, 0.0) # Yellow
+			else:
+				entry.modulate = Color.WHITE
 		else:
 			entry.visible = false
 
@@ -1417,6 +1423,12 @@ func _update_leaderboard_display():
 				score_label.text = str(data.score)
 			
 			entry.visible = true
+			
+			# Highlight check
+			if data.peer_id == multiplayer.get_unique_id():
+				entry.modulate = Color(1.0, 1.0, 0.0) # Yellow
+			else:
+				entry.modulate = Color.WHITE
 		else:
 			entry.visible = false