add 200 OK on root path

src/routes/mod.rs

@@ -1,13 +1,15 @@
 use axum::Router;
 
 mod health;
+mod root;
 mod splash;
 mod teapot;
 mod version;
 
 pub fn routes() -> Router {
     Router::new()
         .merge(health::route())
+        .merge(root::route())
         .merge(splash::route())
         .merge(teapot::route())
         .merge(version::route())

src/routes/root.rs

@@ -0,0 +1,7 @@
+use axum::{routing::get, Router};
+
+pub fn route() -> Router {
+    Router::new().route("/", get(root))
+}
+
+async fn root() -> () {}