nixos/yubikey-touch-detector: init (#254947)

* nixos/yubikey-touch-detector: init

* nixos/yubikey-touch-detector: enable user socket

nixos/modules/module-list.nix

···
   ./programs/xwayland.nix
   ./programs/yabar.nix
   ./programs/yazi.nix
+  ./programs/yubikey-touch-detector.nix
   ./programs/zmap.nix
   ./programs/zsh/oh-my-zsh.nix
   ./programs/zsh/zsh-autoenv.nix

nixos/modules/programs/yubikey-touch-detector.nix

···
+{ config, lib, pkgs, ... }:
+let cfg = config.programs.yubikey-touch-detector;
+in {
+  options = {
+    programs.yubikey-touch-detector = {
+      enable = lib.mkEnableOption "yubikey-touch-detector";
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    systemd.packages = [ pkgs.yubikey-touch-detector ];
+
+    systemd.user.services.yubikey-touch-detector = {
+      path = [ pkgs.gnupg ];
+      wantedBy = [ "graphical-session.target" ];
+    };
+    systemd.user.sockets.yubikey-touch-detector = {
+      wantedBy = [ "sockets.target" ];
+    };
+  };
+}