feat : Refactored Game Over UI from programmatic to scene-based architecture and resolved critical multiplayer/spawn bugs

scripts/managers/lobby_manager.gd

@@ -844,20 +844,26 @@ func _on_server_disconnected() -> void:
 # Rematch Logic
 # =============================================================================
 
+func _get_connected_human_count() -> int:
+	"""Returns the number of connected real human players (peers + host, excluding bots)."""
+	if multiplayer.has_multiplayer_peer():
+		return multiplayer.get_peers().size() + 1  # peers + self (host)
+	return max(1, players_in_room.size())  # Fallback to lobby list
+
 func reset_rematch_votes() -> void:
 	rematch_votes.clear()
-	var required = max(1, ceili(players_in_room.size() / 2.0))
+	var required = max(1, ceili(_get_connected_human_count() / 2.0))
 	emit_signal("rematch_votes_updated", 0, required)
 
 @rpc("any_peer", "call_local", "reliable")
 func request_rematch(player_id: int) -> void:
-	"""Client requests a rematch. Votes needed depend on connected real players."""
+	"""Client requests a rematch. Votes needed depend on connected real players (excluding bots)."""
 	if not multiplayer.is_server():
 		return
 		
 	if player_id not in rematch_votes:
 		rematch_votes.append(player_id)
-		var required = max(1, ceili(players_in_room.size() / 2.0))
+		var required = max(1, ceili(_get_connected_human_count() / 2.0))
 		print("[LobbyManager] Rematch vote from %d. Total: %d/%d" % [player_id, rematch_votes.size(), required])
 		
 		# Sync vote count to all clients