- Added --source and --binary flags to control installation method in install scripts.
- Enabled automatic bun detection with fallback to prebuilt binary for default installation.
- Added bun-based installation option that installs bun automatically if needed.
- Documented new installer options in README with usage examples.
- Added `pi update` command for checking and installing CLI updates from GitHub releases or bun.
- Added cross-platform installer scripts (shell and PowerShell) with automatic PATH configuration.
- Changed HTML export to use compile-time bundled templates via Bun macros.
- Changed `exportToHtml` and `exportFromFile` functions to async operations.