fix local markdown attachment regressions

rust/crates/mnote-web/src/app.rs

@@ -4,12 +4,16 @@ use crate::editor_actor::EditorRuntimeActor;
 use crate::local_folder_watcher_registry::LocalFolderWatcherRegistry;
 use crate::middleware::request_context::inject_request_context;
 use crate::routes::build_router;
+use axum::extract::Request;
+use axum::middleware::Next;
+use axum::response::Response;
 use axum::Router;
 use control_plane::{ControlPlaneStore, SqliteControlPlaneStore};
 use std::env;
 use std::fs;
 use std::sync::Arc;
 use tower_http::trace::TraceLayer;
+use tracing::{error, warn};
 
 #[derive(Debug, Clone)]
 pub struct AppConfig {
@@ -192,10 +196,43 @@ fn open_control_plane_store() -> SqliteControlPlaneStore {
 
 pub fn build_app(state: AppState) -> Router {
     build_router(state)
-        .layer(TraceLayer::new_for_http())
+        .layer(TraceLayer::new_for_http().on_failure(()))
+        .layer(axum::middleware::from_fn(log_failed_response))
         .layer(axum::middleware::from_fn(inject_request_context))
 }
 
+async fn log_failed_response(request: Request, next: Next) -> Response {
+    let method = request.method().clone();
+    let uri = request.uri().clone();
+    let response = next.run(request).await;
+    let status = response.status();
+    if status.is_server_error() {
+        let error_code = response
+            .headers()
+            .get("x-error-code")
+            .and_then(|value| value.to_str().ok())
+            .unwrap_or("");
+        if error_code == "convex_retired" {
+            warn!(
+                method = %method,
+                uri = %uri,
+                status = %status,
+                error_code = %error_code,
+                "退役 Convex 兼容路径被请求"
+            );
+        } else {
+            error!(
+                method = %method,
+                uri = %uri,
+                status = %status,
+                error_code = %error_code,
+                "mnote-web 请求返回服务端错误"
+            );
+        }
+    }
+    response
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;