fix(rooms): "Rename for me" names in search results, inbox and threads (#336)

Follow-up to #359: the personal room name now also shows in message-search
result groups and the search room filter (whose room search matches it
too), Inbox → Notifications, the threads list and the thread panel header.

Verified headless with general renamed to "Zebra Lounge": a global message
search and Inbox → Notifications both show "Zebra Lounge".

Fixes #336

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017PCb59uY3UKqDqt7B6hzd5

src/app/features/room/thread/ThreadsListPanel.tsx

@@ -48,6 +48,7 @@ import { useTimestampFormatter } from '../../../hooks/useTimestampFormatter';
 import { formatRelativeAge } from '../../../utils/formatTimestamp';
 import { useRoomNavigate } from '../../../hooks/useRoomNavigate';
 import { ScreenSize, useScreenSizeContext } from '../../../hooks/useScreenSize';
+import { useLocalRoomNames } from '../../../hooks/useRoomMeta';
 
 // Persisted across panel opens (the panel unmounts on close). getOnInit reads
 // localStorage synchronously so the chosen filter/sort apply on first render.
@@ -235,6 +236,7 @@ export type ThreadsListPanelProps = {
   onOpenThread: (threadId: string) => void;
 };
 export function ThreadsListPanel({ room, onClose, onOpenThread }: ThreadsListPanelProps) {
+  const localNames = useLocalRoomNames();
   const { navigateRoom } = useRoomNavigate();
   const screenSize = useScreenSizeContext();
   const handleJump = useCallback(
@@ -361,7 +363,7 @@ export function ThreadsListPanel({ room, onClose, onOpenThread }: ThreadsListPan
               Threads
             </Text>
             <Text size="T200" truncate style={{ opacity: 0.65 }}>
-              {room.name}
+              {localNames[room.roomId] ?? room.name}
             </Text>
           </Box>
           {totalUnread > 0 && (