feat(home): extract CLI tools into modular home/base structure

- Add individual modules for: bat, carapace, direnv, eza, fzf, lf, nitch,
  television, zellij, zellij-ps, zoxide
- Centralize in home/base/cli-tools/ with default.nix aggregator
- Simplify home/base/packages by removing extracted tools

home/base/cli-tools/lf.nix

@@ -0,0 +1,27 @@
+# Lf — terminal file manager with bat preview and Dracula theme.
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+with lib; let
+  cfg = config.base.cliTools.lf;
+in {
+  options.base.cliTools.lf.enable = mkEnableOption "enable lf terminal file manager";
+
+  config = mkIf cfg.enable {
+    home.packages = [pkgs.lf];
+
+    programs.lf = {
+      enable = true;
+      settings = {
+        preview = true;
+        drawbox = true;
+        hidden = true;
+        icons = true;
+        previewer = "bat";
+      };
+    };
+  };
+}