feat: bump version to 1.0.9 and add graceful keyboard interrupt handling

- Wrapped main application logic in try/except block for KeyboardInterrupt
- Replaced stack trace on Ctrl+C with a clean exit message
- Improved UX when cancelling operations from the main menu

Update version to 1.0.8, add dynamic PyPI version badge to README, an…

…d refine installation instructions

Update version to 1.0.7, enhance CHANGELOG with bug fixes and improve…

…ments, and refine README badge

Update CHANGELOG for version 1.0.6 with major README documentation en…

…hancements

Fix banner image filename case sensitivity in README.md