fix: correct systemd path and service configuration for Caddy route reload

caddy.nix

@@ -32,16 +32,19 @@
     '';
   };
 
-  systemd.path."caddy-routes-reload" = {
+
+  systemd.paths."caddy-routes-reload" = {
     wantedBy = [ "multi-user.target" ];
     pathConfig = {
       PathChanged = "/var/lib/containers/routes/routes.caddy";
     };
   };
 
-  systemd.service."caddy-routes-reload" = {
-    script = ''
-      systemctl reload caddy
-    '';
+  systemd.services."caddy-routes-reload" = {
+    serviceConfig = {
+      Type = "oneshot";
+      ExecStart = "${pkgs.systemd}/bin/systemctl reload caddy.service";
+    };
   };
+
 }