fix(git): remove --signoff flag from ci alias

- Updated `ci` alias in both NixOS and Home modules to exclude the `--signoff` flag.
- Ensures compatibility and avoids unnecessary signing for commit alias.

modules/home/tools/git/default.nix

@@ -58,7 +58,7 @@ in
         };
         alias = {
           co = "checkout";
-          ci = "commit --signoff";
+          ci = "commit";
           dlog = "-c diff.external=difft log --ext-diff -p";
           dshow = "-c diff.external=difft show --ext-diff";
           ddiff = "-c diff.external=difft diff";

modules/nixos/tools/git/default.nix

@@ -1,5 +1,4 @@
 {
-  options,
   config,
   pkgs,
   lib,
@@ -51,7 +50,7 @@ in
           };
           alias = {
             co = "checkout";
-            ci = "commit --signoff";
+            ci = "commit";
           };
           pull.ff = "only";
           core.pager = "${pkgs.delta}/bin/delta";