feat(waybar): add waybar module, refine hyprland config, add private configs

- Add waybar with base16-themed bar, modules (workspaces, window, volume, battery, network, vpn, cpu, memory, date, time), and CSS style
- Replace polybar with waybar in desktop imports
- Launch waybar + hyprpaper on hyprland startup
- Extract hyprpaper into its own module with eDP-2 output target
- Tweak border colors (active: base07→base03, inactive: base03→base00)
- Enable Nordzy cursor theme with hyprcursor support
- Add private email (neomutt) and git (signing key) configs
- Remove chromium force-device-scale-factor flag
- Drop explicit desktop.hyprland.enable from user config
- Add result to gitignore

1 files changed, 11 insertions, 0 deletions

diff --git a/modules/desktop/waybar/module/vpn.nix b/modules/desktop/waybar/module/vpn.nix
new file mode 100644
index 0000000..04366e1
--- /dev/null
+++ b/modules/desktop/waybar/module/vpn.nix
@@ -0,0 +1,11 @@
+{
+  config,
+  lib,
+  pkgs,
+}:
+with config.scheme.withHashtag;
+{
+  exec = "${pkgs.runtimeShell} -c '${lib.getExe' pkgs.iproute2 "ip"} a | ${lib.getExe pkgs.gnugrep} -q tun0 && printf \" VPN\"'";
+  interval = 5;
+  format = "{}";
+}