add aspects/cli/ home-manager modules

CLI tool configurations: btop, comma, direnv, helix, hm-cli, starship, tmux

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

aspects/cli/btop.nix

@@ -0,0 +1,13 @@
+{ ... }:
+{
+  flake.modules.homeManager.cli-btop = { config, lib, pkgs, ... }: {
+    programs.btop = {
+      enable = true;
+      settings = {
+        theme_background = false;
+        proc_sorting = "cpu direct";
+        update_ms = 500;
+      };
+    };
+  };
+}