refactor(reverse-proxy): use route registry

guests/reverse-proxy.nix

@@ -2,7 +2,7 @@
   config,
   lib,
   my,
-  reverseProxyFleetRoutes ? config.modules.reverse-proxy.routes,
+  registry,
   ...
 }:
 let
@@ -35,7 +35,7 @@ in
       interior = {
         modules.reverse-proxy = {
           enable = true;
-          routes = reverseProxyFleetRoutes // legacyRoutes;
+          routes = registry.route // { legacy = legacyRoutes; };
         };
 
         networking.firewall.allowedTCPPorts = [ 2022 ];