fix: install wireguard-tools from the webinstaller's package list

30ee044 added it to archinstall/user_configuration.json, but the
webinstaller builds its own package list in build_archinstall_config(),
so installed boxes had no wg-quick@.service and gateway connect failed
with "Unit wg-quick@furtka-gw.service does not exist".

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

tests/test_app.py

@@ -87,7 +87,7 @@ def test_build_archinstall_config_includes_post_install_bootstrap(monkeypatch, t
         }
     )
 
-    for pkg in ("caddy", "avahi", "nss-mdns"):
+    for pkg in ("caddy", "avahi", "nss-mdns", "wireguard-tools"):
         assert pkg in cfg["packages"]
     # Packaged units go in `services` (enabled before custom_commands runs);
     # our own units don't exist at that point, so they must be enabled from

webinstaller/app.py

@@ -469,6 +469,9 @@ def build_archinstall_config(s):
             "caddy",
             "avahi",
             "nss-mdns",
+            # furtka-gateway tunnel — furtka/wireguard.py drives
+            # wg-quick@furtka-gw.service, which ships in this package.
+            "wireguard-tools",
             # Resource manager runtime — pure-stdlib Python, no pip needed
             # because we expose the package via PYTHONPATH in /usr/local/bin/furtka.
             "python",