feat(y2q): add caddy

- Add a runit service for Caddy with a Caddyfile
- Update cloudflared runit service:
  - Add support for multiple subdomains using dynamic YAML generation
  - Each subdomain routes to Caddy running on localhost (port 8080)

home/modules/runit/services/cloudflared.nix

@@ -1,7 +1,10 @@
-{ pkgs, config, rootPath, ... }:
+{ pkgs, config, rootPath, lib, ... }:
 
 let
   tunnel = "cb0d9c2c-48f9-4bca-9e81-ef92423c5afa";
+  subdomains = [
+    "gist.toast.name"
+  ];
 in
 {
   home.file.".cloudflared/${tunnel}.json".source = rootPath + /secrets/gitcrypt/cloudflared/${tunnel}.json;
@@ -11,10 +14,11 @@ in
     credentials-file: ${config.home.homeDirectory}/.cloudflared/${tunnel}.json
 
     ingress:
-      - hostname: gist.toast.name
-        service: http://${config.runit.services.opengist.environment.OG_HTTP_HOST}:${config.runit.services.opengist.environment.OG_HTTP_PORT}
-
-      - service: http_status:404
+    ${lib.concatMapStringsSep "\n" (host: ''
+      ${"  "}- hostname: ${host}
+      ${"  "}  service: http://localhost:80
+    '') subdomains}
+    ${"  "}- service: http_status:404
   '';
 
   runit.services.cloudflared = {