Add traefik routing configs to GitOps

Sync all conf.d routing configs from core:
- authentik.yml - routes to ubuntu-prod:9000
- gitea.yml - routes to ubuntu-prod:3001
- middlewares.yaml - forward-auth, redirects, security headers
- dynamic.yml, library.yaml, meshmon.yaml, minecraft.yaml
- radio.yml, spider.yml, tlc.yml, wille.yaml

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

stacks/traefik/conf.d/radio.yml

@@ -0,0 +1,23 @@
+core:
+  defaultRuleSyntax: v2
+
+http:
+  routers:
+    radio:
+      entrypoints:
+        - https
+        - http
+      rule: Host(`radio.uplink.tel`)
+      service: radio
+      tls:
+        certResolver: http
+      middlewares:
+        - securityHeaders
+
+  services:
+    radio:
+      loadBalancer:
+        passHostHeader: true
+        servers:
+          - url: "http://wunder.localdomain:3000"
+