fix: Rust 客户端删除配置日志补充具体 key 列表，移除 Rust 待测试标记

README_DOCKERFILE.md

@@ -181,7 +181,7 @@ docker run -it --rm \
 docker run -it --rm -e KENAITO_BASE_URL=http://host.docker.internal:8080 -e KENAITO_APP_NAME=kenaito-springboot-demo -e KENAITO_ENV=daily kenaito-conf-cpp-demo
 ```
 
-## Rust 客户端（待测试）
+## Rust 客户端
 
 ```bash
 docker build -f Dockerfile.rust -t kenaito-conf-rust-demo .

kenaito-conf-rust-client/src/lib.rs

@@ -265,7 +265,7 @@ impl Client {
                 for key in &deleted_keys {
                     configs.remove(*key);
                 }
-                eprintln!("[ConfigClient] {} configs deleted", deleted_keys.len());
+                eprintln!("[ConfigClient] {} configs deleted: {}", deleted_keys.len(), deleted_keys.join(", "));
             }
         }