* Remove flake-utils_2, nix-github-actions, nixpkgs_2, poetry2nix, systems_2, systems_3, and treefmt-nix_2 from flake.lock
* Add alpha plugin configuration in home/common/core/nixvim/plugins/alpha.nix
* Include alpha plugin in home/common/core/nixvim/plugins/default.nix
* Removed personal packages repo import for sqlfmt and poetry2nix
* Removed homeConfigurations section from flake.nix
* Updated home.packages in home/common/core/nixvim/default.nix to include sqlfmt
* Added sqlfmt package in pkgs/default.nix and pkgs/sqlfmt/default.nix
* Removed unused imports in hosts/common/users/sam/default.nix