* 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