RealRyte Admin Menu - renamed resource

Resource folder name:
  realryte_admin

server.cfg:
  ensure realryte_admin

ACE required if the menu needs server commands:
  add_ace resource.realryte_admin command allow

Do NOT keep `ensure luxu_admin` for this renamed copy.
The SQL table/event/state namespaces intentionally remain `luxu_admin_*` / `luxu_admin:*`
for database and protocol compatibility. The actual FiveM resource name is now realryte_admin.

Security cleanup in this build:
- Removed shared/main.js remote-code downloader.
- Disabled the external fallback that could submit server token/player identifiers.
