- Commented out default SSH service enablement in common suite.
- Updated SSH agent configuration to use dynamic user paths.
- Removed outdated SSH keys and added missing key descriptions.
Moved default SSH keys to a shared `common.nix` module for better reusability and maintainability. Updated references in both NixOS and Darwin user modules to use the centralized keys. This reduces redundancy and improves consistency across modules.
Harald Hoyer