- Removes legacy garbage and rebuild functions from shell initialization
- Integrates a new yay package with commands for rebuild, update, garbage collection, and more
- Adds Fish shell completions for improved usability
- Updates system configuration to include yay as a package
- Applies overlays in flake to make custom packages available
- Replaces recursive package import with explicit package scanning
- Moves packages from `pkgs/common` to `pkgs/` and updates overlay paths
- Updates snapraid-runner email configuration (from, host, port, credentials)
• Removes legacy backup scripts
• Adds new Borg wrapper with automated backup and rotation
• Introduces a TUI for managing Borg repositories
• Updates emulator launchers to use the new backup mechanism
