[bug]: symlinks to directories outside the worktree are not browsable in the file tree (1.2.0 regression)

[iAsimov]

Bug Description

A symlink whose target resolves outside the workspace root is classified as outside-root and is neither expandable nor openable in the file tree. It renders as a leaf node with a link icon, and opening it shows "Could not load file". The same links behaved as directories in 1.1.40.

Steps to Reproduce

1. Create a task/worktree in any project.
2. From the worktree root: ln -s ~/some/dir/outside shared (target outside the worktree).
3. Open the task editor's file tree and click shared.

Actual vs Expected Behavior

Actual: the entry cannot be expanded or opened; opening it yields "Could not load file".

Expected: a symlink to a directory behaves as a directory.

emdash Version

1.2.2. Introduced in 1.2.0; 1.1.40 is unaffected.

Operating System

macOS 26.6.2 (Apple silicon)

Additional Context

• packages/core/src/runtimes/files/node/tree/directory-reader.ts, in classifySymlink, returns before the isDirectory() / isFile() classification:

  const canonical = await realpath(absolutePath);
  if (!containsPath(rootPath, canonical)) return { target, kind: 'outside-root' };

• With symlinkTargetKind === 'outside-root', isExpandableFileEntry and isOpenableFileEntry (packages/core/src/runtimes/files/api/tree/state.ts) both return false.
• The same containment applies in RootPathPolicy.resolveFollowed and resolveExistingEntry (packages/core/src/runtimes/files/node/fs/path-policy.ts), and in enumerate.ts, where it also overrides includeSymlinkFiles.
• directory-reader.ts is absent in v1.1.40 and present in v1.2.0.