feat: add base app

crates/app/src/state.rs

@@ -0,0 +1,14 @@
+use axum::extract::FromRef;
+use leptos::prelude::expect_context;
+use server_fn::ServerFnError;
+
+#[derive(FromRef, Clone)]
+pub struct State {}
+
+pub async fn get_state() -> Result<State, ServerFnError> {
+    let state = expect_context::<crate::state::State>();
+    let axum::extract::State(state): axum::extract::State<crate::state::State> =
+        leptos_axum::extract_with_state(&state).await?;
+
+    Ok(state)
+}