feat: add missing packages and programs to base cli-tools

- packages.nix: essential packages (jq, ripgrep, fd, htop, coreutils,
  lazygit, httpie, just, devenv, gcc, go, sqlite, sqlite-vec, nix-index,
  nix-update, progress, comma, fabric-ai, llm, basecamp, hyprpaper-random,
  libnotify, trash-cli, unzip, zip, yazi)
- bat.nix: bat with nix-colors derived syntax theme
- carapace.nix: multi-shell completion (fish, nushell, bash)
- direnv.nix: automatic env loading with nix-direnv
- eza.nix: modern ls with icons, git status, long format
- lf.nix: terminal file manager with bat preview
- zoxide.nix: smarter cd with fish and nushell integration
- zellij-ps.nix: project session manager wrapping cli.zellij-ps

home/base/cli-tools/zoxide.nix

@@ -0,0 +1,19 @@
+# Zoxide — smarter cd with Fish and Nushell integration.
+{
+  config,
+  lib,
+  ...
+}:
+with lib; let
+  cfg = config.base.cliTools.zoxide;
+in {
+  options.base.cliTools.zoxide.enable = mkEnableOption "enable zoxide smarter cd";
+
+  config = mkIf cfg.enable {
+    programs.zoxide = {
+      enable = true;
+      enableFishIntegration = true;
+      enableNushellIntegration = true;
+    };
+  };
+}