fix: restore rooms and DMs after React Router 7 upgrade

Stop double-encoding Matrix IDs in pathUtils, decode route params on read, fix millify CJS import, and read space children from currentState so channels and joins work again.

src/app/pages/client/direct/RoomProvider.tsx

@@ -1,5 +1,6 @@
 import React, { ReactNode } from 'react';
 import { useParams } from 'react-router-dom';
+import { decodeRouteParam } from '../../pathUtils';
 import { useSelectedRoom } from '../../../hooks/router/useSelectedRoom';
 import { IsDirectRoomProvider, RoomProvider } from '../../../hooks/useRoom';
 import { useMatrixClient } from '../../../hooks/useMatrixClient';
@@ -10,12 +11,19 @@ export function DirectRouteRoomProvider({ children }: { children: ReactNode }) {
   const mx = useMatrixClient();
   const rooms = useDirectRooms();
 
-  const { roomIdOrAlias, eventId } = useParams();
+  const { roomIdOrAlias: rawRoomIdOrAlias, eventId: rawEventId } = useParams();
+  const roomIdOrAlias = decodeRouteParam(rawRoomIdOrAlias);
+  const eventId = decodeRouteParam(rawEventId);
   const roomId = useSelectedRoom();
   const room = mx.getRoom(roomId);
 
   if (!room || !rooms.includes(room.roomId)) {
-    return <JoinBeforeNavigate roomIdOrAlias={roomIdOrAlias!} eventId={eventId} />;
+    return (
+      <JoinBeforeNavigate
+        roomIdOrAlias={roomIdOrAlias ?? rawRoomIdOrAlias!}
+        eventId={eventId}
+      />
+    );
   }
 
   return (