* Move client/server connection handling into game-specific networking classes
* Add multiplayer data reset for disconnected clients
* Clean up invalid MessageBus listeners after disconnects
* Persist lobby host address and port in game data
* Standardize the default server port to 8080
* Increase server address input length to support valid addresses
* Remove obsolete connection and match initialization logic from base networking
* Replace direct client/server networking references with GameClient/GameServer scenes
* Refactor message bus to support local emission and argument expansion
* Move lobby connection lifecycle handling to message bus events
* Remove multiplayer connection wait helpers and direct lobby client coupling
* Rename Server to ServerNetworking and update lobby client references
* Update scene resources and export configuration
