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/space/RoomProvider.tsx

@@ -1,6 +1,7 @@
 import React, { ReactNode } from 'react';
 import { useParams } from 'react-router-dom';
 import { useAtom, useAtomValue } from 'jotai';
+import { decodeRouteParam } from '../../pathUtils';
 import { useSelectedRoom } from '../../../hooks/router/useSelectedRoom';
 import { IsDirectRoomProvider, RoomProvider } from '../../../hooks/useRoom';
 import { useMatrixClient } from '../../../hooks/useMatrixClient';
@@ -22,7 +23,9 @@ export function SpaceRouteRoomProvider({ children }: { children: ReactNode }) {
   const mDirects = useAtomValue(mDirectAtom);
   const allRooms = useAtomValue(allRoomsAtom);
 
-  const { roomIdOrAlias, eventId } = useParams();
+  const { roomIdOrAlias: rawRoomIdOrAlias, eventId: rawEventId } = useParams();
+  const roomIdOrAlias = decodeRouteParam(rawRoomIdOrAlias);
+  const eventId = decodeRouteParam(rawEventId);
   const viaServers = useSearchParamsViaServers();
   const roomId = useSelectedRoom();
   const room = mx.getRoom(roomId);
@@ -31,7 +34,7 @@ export function SpaceRouteRoomProvider({ children }: { children: ReactNode }) {
     // room is not joined
     return (
       <JoinBeforeNavigate
-        roomIdOrAlias={roomIdOrAlias!}
+        roomIdOrAlias={roomIdOrAlias ?? rawRoomIdOrAlias!}
         eventId={eventId}
         viaServers={viaServers}
       />
@@ -59,7 +62,7 @@ export function SpaceRouteRoomProvider({ children }: { children: ReactNode }) {
 
     return (
       <JoinBeforeNavigate
-        roomIdOrAlias={roomIdOrAlias!}
+        roomIdOrAlias={roomIdOrAlias ?? rawRoomIdOrAlias!}
         eventId={eventId}
         viaServers={viaServers}
       />