refactor: move server rs workspace entries into crates

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

@@ -0,0 +1,50 @@
+use axum::{extract::Request, http::header::CONTENT_TYPE, middleware::Next, response::Response};
+use tracing::{error, warn};
+
+use crate::{
+    http_error::AppError,
+    request_context::{resolve_request_id, RequestContext},
+};
+
+pub async fn normalize_error_response(request: Request, next: Next) -> Response {
+    let request_id = resolve_request_id(&request);
+    let request_context = request.extensions().get::<RequestContext>().cloned();
+    let response = next.run(request).await;
+
+    if !should_normalize_error_response(&response) {
+        return response;
+    }
+
+    let app_error = AppError::from_status(response.status());
+    let status = response.status();
+    let request_id = request_id.as_deref().unwrap_or("unknown");
+
+    if status.is_server_error() {
+        error!(
+            %request_id,
+            status = status.as_u16(),
+            error_code = app_error.code(),
+            "request failed"
+        );
+    } else {
+        warn!(
+            %request_id,
+            status = status.as_u16(),
+            error_code = app_error.code(),
+            "request failed"
+        );
+    }
+
+    app_error.into_response_with_context(request_context.as_ref())
+}
+
+fn should_normalize_error_response(response: &Response) -> bool {
+    let status = response.status();
+
+    if !(status.is_client_error() || status.is_server_error()) {
+        return false;
+    }
+
+    // 当前阶段只兜底框架默认的空错误响应或非 JSON 错误响应，避免覆盖后续业务 handler 主动构造的错误 body。
+    !response.headers().contains_key(CONTENT_TYPE)
+}