修正策划文件删除逻辑的 Rust 格式

按 cargo fmt 整理删除路径解析与回归测试断言的换行

apps/ai-game-creator-shell/src-tauri/src/agent/design_tools.rs

@@ -843,7 +843,8 @@ fn design_path_is_link(path: &Path) -> bool {
 }
 
 fn remove_design_path(workspace: &Path, path: &Path) -> Result<(), String> {
-    let metadata = fs::symlink_metadata(path).map_err(|error| format!("读取删除目标失败：{error}"))?;
+    let metadata =
+        fs::symlink_metadata(path).map_err(|error| format!("读取删除目标失败：{error}"))?;
     if design_path_is_link(path) {
         // Windows 目录链接 / junction 使用 RemoveDirectory，且不能解析到链接目标。
         #[cfg(windows)]
@@ -857,9 +858,10 @@ fn remove_design_path(workspace: &Path, path: &Path) -> Result<(), String> {
         return fs::remove_file(path).map_err(|error| format!("删除失败：{error}"));
     }
     if metadata.is_dir() {
-        let target = fs::canonicalize(path).map_err(|error| format!("解析删除目标失败：{error}"))?;
-        let workspace = fs::canonicalize(workspace)
-            .map_err(|error| format!("解析策划工作区失败：{error}"))?;
+        let target =
+            fs::canonicalize(path).map_err(|error| format!("解析删除目标失败：{error}"))?;
+        let workspace =
+            fs::canonicalize(workspace).map_err(|error| format!("解析策划工作区失败：{error}"))?;
         if workspace.starts_with(&target) {
             return Err("不能删除工作区根目录或包含它的上级目录".to_string());
         }
@@ -946,7 +948,10 @@ mod tests {
             let error = execute_design_file_tool(root, "delete_path", &json!({"path":path}))
                 .expect_err("protect workspace and ancestors");
             assert!(error.contains("不能删除工作区根目录"));
-            assert_eq!(fs::read_to_string(workspace.join("keep.md")).unwrap(), "keep");
+            assert_eq!(
+                fs::read_to_string(workspace.join("keep.md")).unwrap(),
+                "keep"
+            );
             assert!(workspace.join("child").is_dir());
         }
     }