- Local mode: Use File System Access API (Chrome/Edge/Safari) or webkitdirectory (Firefox) to read folders from browser
- Local mode: Browser reads files and uploads them via HTTP (no server-side filesystem access needed)
- Network mode: Type network paths or use Browse Network button for server-side scanning
- Add 'Start Scanning' button for local mode (separate from folder selection)
- Update API client to handle FormData uploads correctly (remove Content-Type header)
- Update Help page documentation with new scan mode options
- Add progress tracking for local file uploads"