initial arhitectural overhaul

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

crates/app/src/session.rs

@@ -0,0 +1,36 @@
+//! App-level offline resource management
+//!
+//! Sets up vector clock and networking resources. Sessions are created later
+//! when the user starts networking.
+
+use bevy::prelude::*;
+use libmarathon::{
+    networking::{
+        EntityLockRegistry, NetworkEntityMap, NodeVectorClock, VectorClock,
+    },
+};
+use uuid::Uuid;
+
+/// Initialize offline resources on app startup
+///
+/// This sets up the vector clock and networking-related resources, but does NOT
+/// create a session. Sessions only exist when networking is active.
+pub fn initialize_offline_resources(world: &mut World) {
+    info!("Initializing offline resources (no session yet)...");
+
+    // Create node ID (persists for this app instance)
+    let node_id = Uuid::new_v4();
+    info!("Node ID: {}", node_id);
+
+    // Insert vector clock resource (always available, offline or online)
+    world.insert_resource(NodeVectorClock {
+        node_id,
+        clock: VectorClock::new(),
+    });
+
+    // Insert networking resources (available from startup, even before networking starts)
+    world.insert_resource(NetworkEntityMap::default());
+    world.insert_resource(EntityLockRegistry::default());
+
+    info!("Offline resources initialized (vector clock ready)");
+}