- skills_hub: validate that uninstall_skill's install_path resolves
inside SKILLS_DIR before calling shutil.rmtree, preventing recursive
deletion of arbitrary directories via poisoned lock.json entries
- skills_hub: include file paths (not just contents) in
bundle_content_hash so swapping filenames between files changes the
hash, strengthening update-detection integrity
- pairing: wrap list_pending() in self._lock so _cleanup_expired() file
writes don't race with concurrent generate_code()/approve_code() calls
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
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