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

src/app/pages/pathUtils.ts

@@ -20,6 +20,7 @@ import {
   REGISTER_PATH,
   RESET_PASSWORD_PATH,
   ROOT_PATH,
+  SPACE_FEED_PATH,
   SPACE_LOBBY_PATH,
   SPACE_PATH,
   SPACE_ROOM_PATH,
@@ -28,6 +29,9 @@ import {
 } from './paths';
 import { trimLeadingSlash, trimTrailingSlash } from '../utils/common';
 import { HashRouterConfig } from '../hooks/useClientConfig';
+import type { MatrixClient } from 'matrix-js-sdk';
+import { getCanonicalAliasOrRoomId } from '../utils/matrix';
+import { shouldShowForumLobby } from '../utils/room';
 
 export const joinPathComponent = (path: Path): string => path.pathname + path.search + path.hash;
 
@@ -128,6 +132,21 @@ export const getSpaceLobbyPath = (spaceIdOrAlias: string): string => {
   };
   return generatePath(SPACE_LOBBY_PATH, params);
 };
+export const getSpaceFeedPath = (spaceIdOrAlias: string): string => {
+  const params = {
+    spaceIdOrAlias: encodeURIComponent(spaceIdOrAlias),
+  };
+  return generatePath(SPACE_FEED_PATH, params);
+};
+/** Forum spaces open the post feed; other spaces open the lobby. */
+export const getSpaceDefaultPath = (mx: MatrixClient, spaceId: string): string => {
+  const spaceIdOrAlias = getCanonicalAliasOrRoomId(mx, spaceId);
+  const space = mx.getRoom(spaceId);
+  if (space && shouldShowForumLobby(space)) {
+    return getSpaceFeedPath(spaceIdOrAlias);
+  }
+  return getSpaceLobbyPath(spaceIdOrAlias);
+};
 export const getSpaceSearchPath = (spaceIdOrAlias: string): string => {
   const params = {
     spaceIdOrAlias: encodeURIComponent(spaceIdOrAlias),