fix: stabilize local folder AI document workflow

- scope local-folder PageTree revision and document sidebar rendering to fileTreeScope

- preserve projected table/image attrs for local Markdown aggregate fallback

- avoid FileTree restore forced layouts on cold design open

- add API ChatOnly provider runtime and local OCR task handling regressions

rust/crates/mnote-web/browser/filetree-selection-runtime.js

@@ -13,8 +13,9 @@ function visibleFileTreeRows(deps) {
   return Array.from(document.querySelectorAll('#sidebar-file-tree-root .tree-row[data-shell-mode="filetree"]'))
     .filter(function(row) {
       if (!(row instanceof HTMLElement)) return false;
-      if (row.closest('.tree-children--collapsed')) return false;
-      return row.offsetParent !== null || row.getClientRects().length > 0;
+      // 文件树展开恢复会在短时间内多次同步选择状态。这里不能读取
+      // offsetParent/getClientRects，否则会和 DOM 写入交错触发强制布局。
+      return !row.closest('.tree-children--collapsed');
     });
 }