wire utoipa OpenAPI: #[utoipa::path] on all handlers, Scalar UI (#14)

crates/presentation/src/main.rs

@@ -9,6 +9,7 @@ mod extractors;
 mod factory;
 mod handlers;
 mod mappers;
+mod openapi;
 mod routes;
 mod state;
 
@@ -52,6 +53,7 @@ async fn main() -> anyhow::Result<()> {
 
     let app = axum::Router::new()
         .nest("/api/v1", routes::api_v1_router())
+        .nest("/api", routes::docs_router())
         .layer(cors)
         .layer(TraceLayer::new_for_http())
         .with_state(app_state);