feat: add gatus entry for each subdomain

modules/nixos/features/gatus.nix

@@ -1,43 +1,17 @@
 let
   port = 5025;
   certloc = "/var/lib/acme/fi33.buzz";
+  hostname = "status.fi33.buzz";
+  url = "https://${hostname}";
 in
 {
   services = {
     gatus = {
       enable = true;
-      settings = {
-        web = {
-          inherit port;
-        };
-        endpoints = [
-          {
-            name = "website";
-            url = "https://twin.sh/health";
-            interval = "5m";
-            conditions = [
-              "[STATUS] == 200"
-              "[BODY].status == UP"
-              "[RESPONSE_TIME] < 300"
-            ];
-          }
-        ];
-      };
+      settings.web.port = port;
     };
 
-    # borgmatic.settings = {
-    #   source_directories = [ ];
-    #   postgresql_databases = [
-    #     {
-    #       name = "gatus";
-    #       hostname = "localhost";
-    #       username = "root";
-    #       password = "{credential systemd borgmatic-pg}";
-    #     }
-    #   ];
-    # };
-
-    caddy.virtualHosts."uptime.fi33.buzz".extraConfig = ''
+    caddy.virtualHosts.${hostname}.extraConfig = ''
       reverse_proxy localhost:${toString port}
       tls ${certloc}/cert.pem ${certloc}/key.pem {
         protocols tls1.3