Fix: use event.getRoomId() in invite handler (member.room can be undefined)

index.js

@@ -64,8 +64,9 @@ function loadQuotes() {
         // Auto-accept invites so the bot can be invited into rooms.
         client.on('RoomMember.membership', (event, member) => {
             if (member.userId === userId && member.membership === 'invite') {
-                console.log(`📩 Invited to ${member.room.roomId}, joining...`);
-                client.joinRoom(member.room.roomId).catch((err) => {
+                const roomId = event.getRoomId();
+                console.log(`📩 Invited to ${roomId}, joining...`);
+                client.joinRoom(roomId).catch((err) => {
                     console.error('Failed to join room:', err.message);
                 });
             }