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/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';