Add a comprehensive system recovery tool that:
- Detects FWS installations on disks including LVM volumes
- Mounts target root filesystem with /boot and ESP partitions
- Provides interactive menu for common repair operations:
- GRUB reinstallation (UEFI and BIOS support)
- Initramfs regeneration via mkinitcpio
- Pacman database repair and system updates
- Interactive chroot shell for manual intervention
The script handles automatic LVM activation, filesystem detection via os-release, and proper cleanup on exit.
