update Homebrew configuration: change cleanup strategy to 'zap', add azure-cli, and fix logi-options package name; add zsh configuration in shell.nix

modules/home/stephen/shell.nix

@@ -0,0 +1,12 @@
+{ config, pkgs, lib, ... }:
+
+{
+  # Configure zsh through programs.zsh instead of home.file
+  programs.zsh = {
+    enable = true;
+    initContent = ''
+      eval "$(starship init zsh)"
+      export PATH="''${KREW_ROOT:-/Users/${config.home.username}/.krew}/bin:$PATH"
+    '';
+  };
+}