feat(hooks): rank-based API tied to permission_ranks DB table

Drop the SecurityLevel-named family (useIsModerator / useIsAdmin /
useIsCommunity / useIsPlayerSupport / useHasSecurityLevel /
useUserSecurityLevel) in favour of a rank-based family tied to the
operator's actual `permission_ranks` rows in the Arcturus DB:

- `useUserRank()` returns `{ id, name, level, badge, prefix,
  prefixColor }` derived from the snapshot. Powered by the renderer's
  extended IUserDataSnapshot (companion commit 87e67d5 on
  feat/react19-event-bus).
- `useHasRankLevel(min)` replaces useHasSecurityLevel; consumers
  pass a `permission_ranks.level` threshold from the deployment.
- `useIsRank(name)` matches `permission_ranks.rank_name` exactly.

To avoid bare integers in widget bodies, added a deployment-scoped
constants file at `src/api/nitro/session/RankLevels.ts`:

  export const STAFF_LEVELS = {
      MEMBER: 1, SUPPORT: 4, MOD: 5, SUPER_MOD: 6, ADMIN: 7
  };

A deployment that re-numbers `permission_ranks` only edits this file.

Migrated all 11 consumer reads (same set as the earlier session's
useIsModerator migration plus the audit catch): ToolbarView,
CatalogClassicView, CatalogModernView, ChooserWidgetView,
CalendarView, YouTubePlayerView, FurniEditorView,
InfoStandWidgetFurniView, AvatarInfoWidgetPetView,
FurnitureMannequinView, NavigatorRoomInfoView. The
NavigatorRoomInfoView `staff_pick` permission was previously
`securityLevel >= COMMUNITY (7)` via the renderer-enum wrapper —
ported to `useHasRankLevel(STAFF_LEVELS.ADMIN)` because in the
default seed level 7 is Administrator, which is the actual rank that
gets the `acc_anyroomowner`-style permissions for staff-picking.

Tests refreshed under `useSessionSnapshots.test.tsx`:
- useUserRank surfaces the full metadata block;
- useHasRankLevel does `>=` against the threshold;
- useIsRank exact-matches against rank_name;
- a runtime promote (snapshot mutation + SESSION_DATA_UPDATED
  dispatch) flips the result, locking in the reactive contract.

Mock extended only minimally — kept the SecurityLevel enum class for
any consumer outside the dropped family that still imports it.

Verification: yarn typecheck clean, yarn lint:hooks clean, yarn test
213/213. The Arcturus-side composer change (UserPermissionsComposer
appending the 5 extra fields) is staged but UNCOMMITTED on Arcturus
main (which has unrelated WIP); the wire is backward-compatible so
the React client works against both pre- and post-extension
emulators.

src/components/navigator/views/NavigatorRoomInfoView.tsx

@@ -1,10 +1,10 @@
 import { CreateLinkEvent, GetCustomRoomFilterMessageComposer, GetGuestRoomMessageComposer, GetSessionDataManager, NavigatorSearchComposer, RemoveOwnRoomRightsRoomMessageComposer, RoomControllerLevel, RoomMuteComposer, RoomSettingsComposer, ToggleStaffPickMessageComposer, UpdateHomeRoomMessageComposer } from '@nitrots/nitro-renderer';
 import { FC, useEffect, useMemo, useState } from 'react';
 import { FaLink, FaSignOutAlt } from 'react-icons/fa';
-import { DispatchUiEvent, GetGroupInformation, LocalizeText, ReportType, SendMessageComposer, ToggleFavoriteRoom } from '../../../api';
+import { DispatchUiEvent, GetGroupInformation, LocalizeText, ReportType, SendMessageComposer, STAFF_LEVELS, ToggleFavoriteRoom } from '../../../api';
 import { Button, Column, Flex, LayoutBadgeImageView, LayoutRoomThumbnailView, NitroCardContentView, NitroCardHeaderView, NitroCardView, Text, UserProfileIconView } from '../../../common';
 import { RoomWidgetThumbnailEvent } from '../../../events';
-import { useHelp, useIsCommunity, useIsModerator, useNavigator, useRoom } from '../../../hooks';
+import { useHasRankLevel, useHelp, useNavigator, useRoom } from '../../../hooks';
 import { classNames } from '../../../layout';
 
 export interface NavigatorRoomInfoViewProps {
@@ -19,8 +19,8 @@ export const NavigatorRoomInfoView: FC<NavigatorRoomInfoViewProps> = props =>
     const { report = null } = useHelp();
     const { navigatorData = null, favouriteRoomIds = [] } = useNavigator();
     const { roomSession = null } = useRoom();
-    const isModerator = useIsModerator();
-    const isCommunity = useIsCommunity();
+    const isModerator = useHasRankLevel(STAFF_LEVELS.MOD);
+    const isAdmin = useHasRankLevel(STAFF_LEVELS.ADMIN);
 
     const enteredRoomId = navigatorData?.enteredGuestRoom?.roomId ?? 0;
 
@@ -55,7 +55,7 @@ export const NavigatorRoomInfoView: FC<NavigatorRoomInfoViewProps> = props =>
             case 'settings':
                 return (GetSessionDataManager().userId === navigatorData.enteredGuestRoom.ownerId || isModerator);
             case 'staff_pick':
-                return isCommunity;
+                return isAdmin;
             case 'floor':
                 return roomSession?.controllerLevel >= RoomControllerLevel.GUEST;
             case 'guest':