style: format api server tracing layer

server-rs/crates/api-server/src/app.rs

@@ -693,7 +693,10 @@ pub fn build_router(state: AppState) -> Router {
                     )
                 })
                 .on_request(DefaultOnRequest::new().level(Level::INFO))
-                .on_response(move |response: &axum::response::Response, latency: std::time::Duration, span: &Span| {
+                .on_response(
+                    move |response: &axum::response::Response,
+                          latency: std::time::Duration,
+                          span: &Span| {
                         let latency_ms = latency.as_millis().min(u64::MAX as u128) as u64;
                         let status = response.status().as_u16();
                         let slow_request = latency_ms >= slow_request_threshold_ms;
@@ -716,8 +719,12 @@ pub fn build_router(state: AppState) -> Router {
                                 "http request completed"
                             );
                         }
-                })
+                    },
-                .on_failure(|failure: ServerErrorsFailureClass, latency: std::time::Duration, span: &Span| {
+                )
+                .on_failure(
+                    |failure: ServerErrorsFailureClass,
+                     latency: std::time::Duration,
+                     span: &Span| {
                         let latency_ms = latency.as_millis().min(u64::MAX as u128) as u64;
                         error!(
                             parent: span,
@@ -725,7 +732,8 @@ pub fn build_router(state: AppState) -> Router {
                             failure = %failure,
                             "http request failed"
                         );
-                }),
+                    },
+                ),
         )
         // request_id 中间件先进入请求链，确保后续 tracing、错误处理和响应头层都能复用同一份请求标识。
         .layer(middleware::from_fn(attach_request_context))