Changelog
- 52cccef Merge branch 'dev'
- bdd8b54 Merge branch 'nav' into dev
- 7b5a448 feat: add PowerShell file extensions to text classification list
- 31c4a7c feat: implement directory tree navigation via new /api/v1/tree endpoint and sidebar UI
- c6ae85f feat: implement interactive breadcrumb navigation and replace static back button with dynamic path segments
- 541a96c feat: refactor file upload to use temporary files with atomicity and add configurable server timeouts