feat: expose admin console on HTTPS via Traefik port 3002

Traefik-only change: new entrypoint + router for TLS termination.
No changes to Logto ADMIN_ENDPOINT or bootstrap script.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

traefik.yml

@@ -11,6 +11,8 @@ entryPoints:
           scheme: https
   websecure:
     address: ":443"
+  admin-console:
+    address: ":3002"
 
 providers:
   docker: