fix(rooms): "Rename for me" names in Ctrl+K, forward/share pickers and notifications (#336)

The personal room name (io.lotus.room_names) was only used by the
sidebar, header, intro and call bar; the quick switcher couldn't find a
room by it ("No match found") and showed the server name, as did the
forward/share pickers, toasts, OS notifications and reminders.

useRoomMeta gains useLocalRoomNames() / getLocalRoomName(); the quick
switcher matches both names and shows the personal one, the forward and
share pickers show and filter by it, and message/reminder notifications
use it for the room title.

Verified headless with general renamed to "Zebra Lounge": Ctrl+K "Zebra"
and "general" both list "Zebra Lounge"; the forward picker filtered by
"zebra" lists "Zebra Lounge".

Not covered here (follow-up): message-search result headers, the inbox
notifications page and the threads list still use the server name.

Refs #336

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

src/app/features/room/message/ForwardMessageDialog.tsx

@@ -48,6 +48,7 @@ import {
   addRecentForwardTarget,
 } from '../../../state/recentForwardTargets';
 import { buildForwardContent, buildPlaintextAttachmentContent } from './forwardContent';
+import { useLocalRoomNames } from '../../../hooks/useRoomMeta';
 
 type RoomRowProps = {
   room: Room;
@@ -58,6 +59,7 @@ type RoomRowProps = {
   sending: boolean;
 };
 function RoomRow({ room, dm, useAuthentication, selected, onToggle, sending }: RoomRowProps) {
+  const localNames = useLocalRoomNames();
   const mx = useMatrixClient();
   const avatarMxc = room.getMxcAvatarUrl();
   const avatarUrl = avatarMxc
@@ -97,7 +99,7 @@ function RoomRow({ room, dm, useAuthentication, selected, onToggle, sending }: R
     >
       <Box direction="Column">
         <Text size="T300" truncate>
-          {room.name}
+          {localNames[room.roomId] ?? room.name}
         </Text>
         {dm && (
           <Text size="T200" priority="300" truncate>
@@ -212,6 +214,7 @@ function RecentChip({
   onToggle: () => void;
   sending: boolean;
 }) {
+  const localNames = useLocalRoomNames();
   const mx = useMatrixClient();
   const avatarMxc = room.getMxcAvatarUrl();
   const avatarUrl = avatarMxc
@@ -240,7 +243,7 @@ function RecentChip({
       }
     >
       <Text size="B300" truncate style={{ maxWidth: toRem(120) }}>
-        {room.name}
+        {localNames[room.roomId] ?? room.name}
       </Text>
     </Chip>
   );
@@ -252,6 +255,7 @@ type Props = {
 };
 
 export function ForwardMessageDialog({ mEvent, onClose }: Props) {
+  const localNames = useLocalRoomNames();
   const mx = useMatrixClient();
   const modalStyle = useModalStyle(400);
   const directs = useAtomValue(mDirectAtom);
@@ -296,8 +300,10 @@ export function ForwardMessageDialog({ mEvent, onClose }: Props) {
   const filtered = useMemo(() => {
     if (!query) return allRooms;
     const q = query.toLowerCase();
-    return allRooms.filter((r) => r.name.toLowerCase().includes(q));
-  }, [allRooms, query]);
+    return allRooms.filter((r) =>
+      [r.name, localNames[r.roomId]].some((nm) => nm?.toLowerCase().includes(q)),
+    );
+  }, [allRooms, query, localNames]);
 
   // Resolve recent target ids to still-joined rooms (drop ones left/gone).
   const recentRooms = useMemo(