Add a `metacfg.tools.wezterm` home-manager module so wezterm.lua
configuration can be reused across hosts instead of being duplicated
inline. Migrate halo and amd to the new module and enable it on rialo
(font size 14, term = xterm-256color).
- Added system configuration for the HALO machine, including hardware, sound, and remapping settings.
- Configured user-specific settings like session paths, favorite apps, and terminal customization.
- Introduced zram swap, SSD TRIM, and PipeWire priority tuning for performance optimization.
