chore: refactor generic web server code into quark

crates/quark/src/web/swagger.rs

@@ -0,0 +1,9 @@
+use rocket::Route;
+
+pub fn routes() -> Vec<Route> {
+    rocket_okapi::swagger_ui::make_swagger_ui(&rocket_okapi::swagger_ui::SwaggerUIConfig {
+        url: "../openapi.json".to_owned(),
+        ..Default::default()
+    })
+    .into()
+}