fix(rooms): members can start and join calls in new private rooms (#328)

createRoom granted org.matrix.msc3401.call.member at user level only for
voice rooms. Every other room fell back to Synapse's state_default (50),
so in a private group room (where Lotus shows the call button and rings)
only admins could start a call; members saw "1 Live · Join" and then
"You don't have permission to join!". All new non-space rooms now get
call.member: 0 (spaces keep their own override).

Verified headless through Create Room → Private: before, no call.member
entry (state_default 50); now 0. Existing rooms are unchanged; an admin
can set it in room permissions.

Fixes #328

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

src/app/components/create-room/utils.ts

@@ -139,8 +139,11 @@ export const createRoom = async (mx: MatrixClient, data: CreateRoomData): Promis
       data.allowFederation,
       data.additionalCreators,
     ),
-    power_level_content_override:
-      data.type === RoomType.Call ? createVoiceRoomPowerLevelsOverride() : undefined,
+    // [Gitea #328] Every non-space room gets call.member at user level, not just
+    // voice rooms: the call button is shown in private group rooms too, and with
+    // Synapse's state_default (50) only admins could start or join a call there
+    // ("You don't have permission to join!").
+    power_level_content_override: createVoiceRoomPowerLevelsOverride(),
     initial_state: initialState,
   };
 

src/app/components/invite-user-prompt/InviteUserPrompt.tsx

@@ -51,10 +51,9 @@ import { useMatrixClient } from '../../hooks/useMatrixClient';
 import { BreakWord } from '../../styles/Text.css';
 import { useAlive } from '../../hooks/useAlive';
 import { copyToClipboard } from '../../utils/dom';
+import { getMatrixToRoom } from '../../plugins/matrix-to';
 import { getViaServers } from '../../plugins/via-servers';
 import { useModalStyle } from '../../hooks/useModalStyle';
-import { useLotusShareBase } from '../../hooks/useLotusLinkBase';
-import { getLotusRoomPermalink, getLotusSpacePermalink } from '../../plugins/lotus-permalink';
 
 const SEARCH_OPTIONS: UseAsyncSearchOptions = {
   limit: 1000,
@@ -76,14 +75,10 @@ export function InviteUserPrompt({ room, requestClose }: InviteUserProps) {
   const [linkCopied, setLinkCopied] = useState(false);
   const [showQr, setShowQr] = useState(false);
 
-  // [Gitea #285] A link into this deployment; matrix.to can't open Lotus Chat.
-  const lotusBase = useLotusShareBase();
   const inviteUrl = (() => {
     const roomIdOrAlias = getCanonicalAliasOrRoomId(mx, room.roomId);
     const viaServers = isRoomAlias(roomIdOrAlias) ? undefined : getViaServers(room);
-    return room.isSpaceRoom()
-      ? getLotusSpacePermalink(lotusBase, roomIdOrAlias, viaServers)
-      : getLotusRoomPermalink(lotusBase, roomIdOrAlias, undefined, viaServers);
+    return getMatrixToRoom(roomIdOrAlias, viaServers);
   })();
 
   const handleCopyLink = () => {