initial arhitectural overhaul

Signed-off-by: Sienna Meridian Satterwhite <sienna@r3t.io>

crates/libmarathon/src/engine/mod.rs

@@ -0,0 +1,21 @@
+//! Core Engine module - networking and persistence outside Bevy
+
+mod bridge;
+mod commands;
+mod core;
+mod events;
+mod game_actions;
+mod input_controller;
+mod input_events;
+mod networking;
+mod persistence;
+
+pub use bridge::{EngineBridge, EngineHandle};
+pub use commands::EngineCommand;
+pub use core::EngineCore;
+pub use events::EngineEvent;
+pub use game_actions::GameAction;
+pub use input_controller::{AccessibilitySettings, InputContext, InputController};
+pub use input_events::{InputEvent, KeyCode, Modifiers, MouseButton, TouchPhase};
+pub use networking::NetworkingManager;
+pub use persistence::PersistenceManager;