feat: update global gitignore

modules/features/git.nix

@@ -14,7 +14,7 @@
         signing.format = "ssh";
         ignores = [
           ".claude/"
-          ".codex/"
+          ".codex"
         ];
         settings = {
           init.defaultBranch = "main";

modules/hosts/zenith/default.nix

@@ -20,9 +20,17 @@ let
       { pkgs, ... }:
       {
         home.packages = [
-          pkgs.rustup
           pkgs.usql
         ];
+
+        programs.git.ignores = [
+          # Devenv stuff
+          "devenv.*"
+          ".devenv*"
+          ".direnv"
+          "pre-commit-config.yaml"
+          ".envrc"
+        ];
       }
     )
   ];