feat(axol): Enable tailscale

Previously, we set up headscale. As the headscale server doesn't
automatically put the server running it into the tailscale network, we
also need to set up the tailscale daemon

secrets/rekeyed/axol/1ee57cb56c17a905d8f6d68eb574db79-02cace87552ceb629ab03cd084eeae6761008fddebed6b75f9a013d122a25030.age

@@ -0,0 +1,8 @@
+age-encryption.org/v1
+-> ssh-ed25519 JMblKQ /KeQPyNmEYg1qHq5M4z3aQ7Jt4dwozMQMhmb1wzdDDw
+kS77B2HAZxnhMzcD9bTkcyhGiRrkzEv6+UDcE0lonJU
+-> BVh{PUl}-grease K D$G T_Ov7Cb
+vmCUTiAi81FTpapoJgHlCO9e6ZXzUW5QfuclIZbG2gqoL6XKSvED84gdZeIeZ3TA
+tSFu/4eADDeqoGKiFQSt/Ji+qy2XDmIVJh400QwcUsjZasRXMquGPn6jDxo
+--- +5WuWL/wQ0EH3xpoQ3f5mLiHZNsXO8wGpsNBh+PfTkA
+ËA©åߘõTfl—àæ×±×ÆZôdW4‰ÝN–æ÷¤$[P#¡Z‚ÜÔÜ<18>×þƒÃ’æ£A¥ÙFÃr•bïd<C3AF>-`,@ÕµóÈÐäÕ

systems/x86_64-linux/axol/default.nix

@@ -57,6 +57,12 @@
     database_password_path = config.age.secrets."clicks.services.headscale.database_password_path".path;
   };
 
+  clicks.networking.tailscale = {
+    enable = true;
+    server = "vpn.auxolotl.org";
+    authKeyFile = config.age.secrets."clicks.networking.tailscale.authKeyFile".path;
+  };
+
   age.secrets."clicks.services.headscale.database_password_path" = {
     generator.script = "alnum";
     group = "headscale";
@@ -64,5 +70,10 @@
     unstableName = true; # Clicks option to base the name on a hash of the contents ... helps with autorestarting services
   };
 
+  age.secrets."clicks.networking.tailscale.authKeyFile" = {
+    rekeyFile = ./clicks.networking.tailscale.authKeyFile.age;
+    unstableName = true;
+  };
+
   system.stateVersion = "23.11";
 }