feat(hooks): useIsModerator() + migrate 6 component reads

Adds a reactive `useIsModerator()` derived from
`useUserDataSnapshot().securityLevel >= SecurityLevel.MODERATOR`
(mirrors the renderer-side getter at SessionDataManager.ts:684), and
migrates the six React component-body reads of
`GetSessionDataManager().isModerator`:

- ToolbarView (mod-only chat-input button)
- CatalogClassicView, CatalogModernView (admin toggles in catalog
  header)
- ChooserWidgetView (room-object id column visibility)
- YouTubePlayerView (room-control affordance — hook moved above the
  `if (!isOpen) return null` early return so the hook order stays
  stable when the player opens/closes)
- CalendarView (mod-only "open all" affordance)

UX impact: any future promote/demote that flips
SESSION_DATA_UPDATED now re-renders the mod-only UI live, instead of
requiring an F5. Imperative call sites
(AvatarInfoUtilities.populate*, CanManipulateFurniture,
RoomChatHandler) still read the manager directly — they run at click
time, not in a React render, so reactivity has no upside there.

Five of the six call sites are top-level component-body reads (no
early-return interaction). YouTubePlayerView has an
`if (!isOpen) return null` below the hook list, so the hook had to
move ABOVE it; same shape as the recent CatalogPurchaseWidgetView and
CatalogItemGridWidgetView fixes.

Verification: yarn typecheck clean, yarn lint:hooks clean, yarn test
209/209.

src/components/campaign/CalendarView.tsx

@@ -1,7 +1,7 @@
-import { GetSessionDataManager } from '@nitrots/nitro-renderer';
 import { FC, useState } from 'react';
 import { CalendarItemState, ICalendarItem, LocalizeText } from '../../api';
 import { Button, Column, Grid, NitroCardContentView, NitroCardHeaderView, NitroCardView, Text } from '../../common';
+import { useIsModerator } from '../../hooks';
 import { CalendarItemView } from './CalendarItemView';
 
 interface CalendarViewProps
@@ -23,6 +23,7 @@ export const CalendarView: FC<CalendarViewProps> = props =>
     const { onClose = null, campaignName = null, currentDay = null, numDays = null, missedDays = null, openedDays = null, openPackage = null, receivedProducts = null } = props;
     const [ selectedDay, setSelectedDay ] = useState(currentDay);
     const [ index, setIndex ] = useState(Math.max(0, (selectedDay - 1)));
+    const isModerator = useIsModerator();
 
     const getDayState = (day: number) =>
     {
@@ -109,7 +110,7 @@ export const CalendarView: FC<CalendarViewProps> = props =>
                                 <Text>{ dayMessage(selectedDay) }</Text>
                             </div>
                             <div>
-                                { GetSessionDataManager().isModerator &&
+                                { isModerator &&
                                     <Button variant="danger" onClick={ forceOpen }>Force open</Button> }
                             </div>
                         </div>

src/components/catalog/CatalogClassicView.tsx

@@ -1,9 +1,9 @@
-import { AddLinkEventTracker, GetSessionDataManager, ILinkEventTracker, RemoveLinkEventTracker } from '@nitrots/nitro-renderer';
+import { AddLinkEventTracker, ILinkEventTracker, RemoveLinkEventTracker } from '@nitrots/nitro-renderer';
 import { FC, useEffect } from 'react';
 import { FaCog, FaEdit, FaEye, FaEyeSlash, FaPlus, FaTrash } from 'react-icons/fa';
 import { CatalogType, GetConfigurationValue, LocalizeText } from '../../api';
 import { Column, Grid, NitroCardContentView, NitroCardHeaderView, NitroCardTabsItemView, NitroCardTabsView, NitroCardView } from '../../common';
-import { useCatalogActions, useCatalogData, useCatalogUiState } from '../../hooks';
+import { useCatalogActions, useCatalogData, useCatalogUiState, useIsModerator } from '../../hooks';
 import { CatalogAdminProvider, useCatalogAdmin } from './CatalogAdminContext';
 import { CatalogAdminOfferEditView } from './views/admin/CatalogAdminOfferEditView';
 import { CatalogAdminPageEditView } from './views/admin/CatalogAdminPageEditView';
@@ -28,7 +28,7 @@ const CatalogClassicViewInner: FC<{}> = () =>
     {});
     const loading = catalogAdmin?.loading ?? false;
 
-    const isMod = GetSessionDataManager().isModerator;
+    const isMod = useIsModerator();
     const buildersClubHeaderStyle = (currentType === CatalogType.BUILDER)
         ? { borderColor: '#d79d2e', borderBottomColor: '#000', background: 'linear-gradient(180deg, #d89f2d 0%, #c68515 100%)' }
         : undefined;

src/components/catalog/CatalogModernView.tsx

@@ -1,9 +1,9 @@
-import { AddLinkEventTracker, GetSessionDataManager, ILinkEventTracker, RemoveLinkEventTracker } from '@nitrots/nitro-renderer';
+import { AddLinkEventTracker, ILinkEventTracker, RemoveLinkEventTracker } from '@nitrots/nitro-renderer';
 import { FC, useEffect, useState } from 'react';
 import { FaCog, FaEdit, FaEye, FaEyeSlash, FaHeart, FaPlus, FaStar, FaTrash } from 'react-icons/fa';
 import { CatalogType, LocalizeText } from '../../api';
 import { NitroCardContentView, NitroCardHeaderView, NitroCardView } from '../../common';
-import { useCatalogActions, useCatalogData, useCatalogFavorites, useCatalogUiState } from '../../hooks';
+import { useCatalogActions, useCatalogData, useCatalogFavorites, useCatalogUiState, useIsModerator } from '../../hooks';
 import { CatalogAdminProvider, useCatalogAdmin } from './CatalogAdminContext';
 import { CatalogAdminOfferEditView } from './views/admin/CatalogAdminOfferEditView';
 import { CatalogAdminPageEditView } from './views/admin/CatalogAdminPageEditView';
@@ -32,7 +32,7 @@ const CatalogModernViewInner: FC<{}> = () =>
     const { favoriteOfferIds, favoritePageIds } = useCatalogFavorites();
     const [ showFavorites, setShowFavorites ] = useState(false);
 
-    const isMod = GetSessionDataManager().isModerator;
+    const isMod = useIsModerator();
     const totalFavs = favoriteOfferIds.length + favoritePageIds.length;
     const buildersClubHeaderStyle = (currentType === CatalogType.BUILDER)
         ? { borderColor: '#d79d2e', borderBottomColor: '#000', background: 'linear-gradient(180deg, #d89f2d 0%, #c68515 100%)' }

src/components/room/widgets/choosers/ChooserWidgetView.tsx

@@ -1,7 +1,8 @@
-import { FurniturePickupAllComposer, GetSessionDataManager } from '@nitrots/nitro-renderer';
+import { FurniturePickupAllComposer } from '@nitrots/nitro-renderer';
 import { FC, useEffect, useEffectEvent, useMemo, useState } from 'react';
 import { LocalizeText, RoomObjectItem, SendMessageComposer, chooserSelectionVisualizer } from '../../../../api';
 import { Button, Flex, InfiniteScroll, NitroCardContentView, NitroCardHeaderView, NitroCardView, Text } from '../../../../common';
+import { useIsModerator } from '../../../../hooks';
 import { NitroInput, classNames } from '../../../../layout';
 
 const LIMIT_FURNI_PICKALL = 100;
@@ -23,7 +24,7 @@ export const ChooserWidgetView: FC<ChooserWidgetViewProps> = props =>
     const [ searchValue, setSearchValue ] = useState('');
     const [ checkAll, setCheckAll ] = useState(false);
     const [ checkedIds, setCheckedIds ] = useState<number[]>([]);
-    const canSeeId = GetSessionDataManager().isModerator;
+    const canSeeId = useIsModerator();
 
     const ownerNames = useMemo(() =>
     {

src/components/toolbar/ToolbarView.tsx

@@ -1,9 +1,9 @@
-import { CreateLinkEvent, Dispose, DropBounce, EaseOut, GetSessionDataManager, JumpBy, Motions, NitroToolbarAnimateIconEvent, PerkAllowancesMessageEvent, PerkEnum, Queue, Wait, YouTubeRoomSettingsEvent } from '@nitrots/nitro-renderer';
+import { CreateLinkEvent, Dispose, DropBounce, EaseOut, JumpBy, Motions, NitroToolbarAnimateIconEvent, PerkAllowancesMessageEvent, PerkEnum, Queue, Wait, YouTubeRoomSettingsEvent } from '@nitrots/nitro-renderer';
 import { AnimatePresence, motion, Variants } from 'framer-motion';
 import { FC, useEffect, useState } from 'react';
 import { GetConfigurationValue, MessengerIconState, OpenMessengerChat, setYoutubeRoomEnabled, VisitDesktop } from '../../api';
 import { Flex, LayoutAvatarImageView, LayoutItemCountView } from '../../common';
-import { useAchievements, useFriends, useInventoryUnseenTracker, useMessageEvent, useMessenger, useNitroEvent, useSessionInfo, useWiredTools } from '../../hooks';
+import { useAchievements, useFriends, useInventoryUnseenTracker, useIsModerator, useMessageEvent, useMessenger, useNitroEvent, useSessionInfo, useWiredTools } from '../../hooks';
 import { ToolbarItemView } from './ToolbarItemView';
 import { ToolbarMeView } from './ToolbarMeView';
 import { YouTubePlayerView } from './YouTubePlayerView';
@@ -49,7 +49,7 @@ export const ToolbarView: FC<{ isInRoom: boolean }> = props =>
     const { requests = [] } = useFriends();
     const { iconState = MessengerIconState.HIDDEN } = useMessenger();
     const { openMonitor, showToolbarButton } = useWiredTools();
-    const isMod = GetSessionDataManager().isModerator;
+    const isMod = useIsModerator();
     const isVisible = (isToolbarOpen || !isInRoom);
     const visibilityVariant = isVisible ? 'visible' : 'hidden';
 

src/components/toolbar/YouTubePlayerView.tsx

@@ -1,9 +1,9 @@
 import { ControlYoutubeDisplayPlaybackMessageComposer, YouTubeRoomBroadcastEvent, YouTubeRoomPlayComposer, YouTubeRoomSettingsEvent, YouTubeRoomWatchersEvent, YouTubeRoomWatchingComposer } from '@nitrots/nitro-renderer';
 import { FC, useEffect, useRef, useState } from 'react';
 import ReactPlayer from 'react-player/youtube';
-import { GetRoomSession, getYoutubeRoomEnabled, GetSessionDataManager, LocalizeText, SendMessageComposer, YoutubeVideoPlaybackStateEnum } from '../../api';
+import { GetRoomSession, getYoutubeRoomEnabled, LocalizeText, SendMessageComposer, YoutubeVideoPlaybackStateEnum } from '../../api';
 import { NitroCardContentView, NitroCardHeaderView, NitroCardView, LayoutAvatarImageView } from '../../common';
-import { useFurnitureYoutubeWidget, useMessageEvent } from '../../hooks';
+import { useFurnitureYoutubeWidget, useIsModerator, useMessageEvent } from '../../hooks';
 
 const CONTROL_COMMAND_PREVIOUS_VIDEO = 0;
 const CONTROL_COMMAND_NEXT_VIDEO = 1;
@@ -46,6 +46,9 @@ export const YouTubePlayerView: FC<{}> = () =>
     const [broadcastPlaylist, setBroadcastPlaylist] = useState<string[]>([]);
     const [watcherIds, setWatcherIds] = useState<Set<number>>(new Set());
     const [youtubeEnabled, setYoutubeEnabled] = useState(getYoutubeRoomEnabled());
+    // Reactive — must sit above the `if (!isOpen) return null` below
+    // so the hook order stays stable across renders.
+    const isModerator = useIsModerator();
 
     useMessageEvent<YouTubeRoomSettingsEvent>(YouTubeRoomSettingsEvent, event =>
     {
@@ -270,7 +273,7 @@ export const YouTubePlayerView: FC<{}> = () =>
     const isPlaying = currentVideoState === YoutubeVideoPlaybackStateEnum.PLAYING;
     const isPaused = currentVideoState === YoutubeVideoPlaybackStateEnum.PAUSED;
     const roomSession = GetRoomSession();
-    const isMyRoom = GetSessionDataManager().isModerator || (roomSession && roomSession.isRoomOwner);
+    const isMyRoom = isModerator || (roomSession && roomSession.isRoomOwner);
 
     const QuickVolumeButton = ({
         value,

src/hooks/session/useSessionSnapshots.ts

@@ -1,4 +1,4 @@
-import { GetEventDispatcher, GetRoomSessionManager, GetSessionDataManager, GetSoundManager, IRoomSessionSnapshot, IRoomUserData, ISoundVolumesSnapshot, IUserDataSnapshot, NitroEventType } from '@nitrots/nitro-renderer';
+import { GetEventDispatcher, GetRoomSessionManager, GetSessionDataManager, GetSoundManager, IRoomSessionSnapshot, IRoomUserData, ISoundVolumesSnapshot, IUserDataSnapshot, NitroEventType, SecurityLevel } from '@nitrots/nitro-renderer';
 import { useMemo } from 'react';
 import { useExternalSnapshot } from '../events/useExternalSnapshot';
 
@@ -123,6 +123,20 @@ export const useIsUserIgnored = (name: string): boolean =>
     return useMemo(() => list.includes(name), [ list, name ]);
 };
 
+/**
+ * Reactive equivalent of `GetSessionDataManager().isModerator`. Derives
+ * from `useUserDataSnapshot().securityLevel` so any future
+ * promote/demote that flips the SESSION_DATA_UPDATED event re-renders
+ * the consumer without an F5. Mirrors the renderer-side getter at
+ * `SessionDataManager.ts:684` (`securityLevel >= SecurityLevel.MODERATOR`).
+ */
+export const useIsModerator = (): boolean =>
+{
+    const userData = useUserDataSnapshot();
+
+    return userData.securityLevel >= SecurityLevel.MODERATOR;
+};
+
 export const useGroupBadgesSnapshot = (): ReadonlyMap<number, string> =>
     useExternalSnapshot(
         subscribeTo(NitroEventType.GROUP_BADGES_UPDATED),