refactor(reverse-proxy): use route registry

lib/guests.nix

@@ -3,7 +3,6 @@
   self,
   specialArgs,
   bridgeName,
-  reverseProxyRoutes,
 }:
 let
   inherit (lib) escapeShellArg mapAttrsToList;
@@ -130,9 +129,13 @@ let
             Left null, this guest contributes no address to the address registry.
           '';
         };
-        reverseProxy = reverseProxyRoutes.mkRouteOptions {
-          subject = "guest route";
-          enableDefault = false;
+        reverseProxy = {
+          enable = lib.mkEnableOption "a reverse-proxy route for this guest";
+
+          route = lib.mkOption {
+            type = self.lib.registry.definitions.route.type;
+            description = "Route registry entry published for this guest.";
+          };
         };
         mounts = lib.mkOption {
           type = lib.types.attrsOf (
@@ -279,14 +282,7 @@ let
 
         registry.address.${config.networking.hostName}.${machineName} = lib.mkIf (cfg.address != null) cfg.address;
 
-        modules.reverse-proxy.routes.${machineName} = lib.mkIf cfg.reverseProxy.enable (
-          reverseProxyRoutes.routeFields (
-            cfg.reverseProxy
-            // lib.optionalAttrs (cfg.reverseProxy.backend == null && cfg.reverseProxy.endpoint == null) {
-              endpoint = "${config.networking.hostName}-${machineName}";
-            }
-          )
-        );
+        registry.route.${config.networking.hostName}.${machineName} = lib.mkIf cfg.reverseProxy.enable cfg.reverseProxy.route;
 
         assertions = [
           {