chore: scaffold axum server with in-memory CRUD, auth stub and tracing

backend/src/web/routes_health.rs

@@ -0,0 +1,25 @@
+use axum::{Router, routing::get};
+
+pub fn routes_health() -> Router {
+    Router::new().route("/health", get(health))
+}
+
+async fn health() -> &'static str {
+    "up"
+}
+
+#[cfg(test)]
+mod tests {
+    use axum::{Router, routing::get};
+    use axum_test::TestServer;
+
+    use crate::web::routes_health::health;
+
+    #[tokio::test]
+    async fn test_route_health() {
+        let app = Router::new().route(&"/health", get(health));
+        let server = TestServer::new(app);
+        let response = server.get("/health").await;
+        response.assert_status_ok().assert_text("up");
+    }
+}