Wire SaveGame/LoadGame player actions through the full client stack: protocol v15 decode, InputMapper F5/F6 bindings, SimBridge wire mapping with one-shot carry-forward, GameState save_result field, and HUD notification via monologue display. Quit-to-menu triggers quicksave before scene change. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>