feat: Implement forum feed layout and refactor space navigation logic to support new routing structure

src/app/features/forum/ForumSpaceLayout.tsx

@@ -1,30 +1,8 @@
-import React, { ReactNode, useMemo } from 'react';
-import { useMatrixClient } from '../../hooks/useMatrixClient';
-import { useSelectedRoom } from '../../hooks/router/useSelectedRoom';
-import { useSpace } from '../../hooks/useSpace';
-import { isForumContainer, shouldShowForumLobby } from '../../utils/room';
-import { ForumBoardProvider } from './ForumBoardContext';
+import React, { ReactNode } from 'react';
 
-/** Shares forum board state between space sidebar and lobby/room outlet. */
+/**
+ * @deprecated Forum board context now lives in ForumAwareSpaceLayout.
+ */
 export function ForumSpaceLayout({ children }: { children: ReactNode }) {
-  const mx = useMatrixClient();
-  const space = useSpace();
-  const selectedRoomId = useSelectedRoom();
-
-  const scope = useMemo(() => {
-    const room = selectedRoomId ? mx.getRoom(selectedRoomId) : null;
-    const topicRoomId =
-      room && room.roomId !== space.roomId && !isForumContainer(room) ? room.roomId : undefined;
-    return { forumSpaceId: space.roomId, topicRoomId };
-  }, [mx, selectedRoomId, space.roomId]);
-
-  if (!shouldShowForumLobby(space)) {
-    return children;
-  }
-
-  return (
-    <ForumBoardProvider forumSpace={space} scope={scope}>
-      {children}
-    </ForumBoardProvider>
-  );
+  return children;
 }