- Fix zip slip vulnerability: validate extracted paths stay within target
- Fix redundant mkdir before rmtree in rebuild_override()
- Add build/asset_extract and Windows .ps1 fallback to extractor search
- Preserve pack list selection across refreshes
- Add Cancel Extraction button with process.terminate()
- Run override rebuild in background thread to avoid UI freeze
- Fix locale combobox state to readonly
- Add asset_pipeline/ to .gitignore
- Make script executable
