RealRyte Admin Menu v2.3

- /lxadmin opens the full RealRyte Admin panel.
- /realryte opens the quick menu.
- /luxu remains as a backward-compatible alias to /realryte.
- F9 executes /lxadmin through the original command permission path.
- F10 executes /realryte through the original command permission path.
- Removed duplicate fallback key mappings.
- Visible Luxu text is replaced with RealRyte while the UI is open.
- RealRyte logo/status/watermarks stay hidden when the menu is closed.
- NUI page background stays transparent.

NOTE: FiveM saves keybind overrides in the client profile. If F9/F10 were previously rebound, reset the RealRyte Admin bindings once in FiveM Settings > Key Bindings > FiveM.
