test: fix broken tests due to invite feature

Author: ricardogarim

apps/meteor/tests/data/rooms.helper.ts

@@ -424,3 +424,32 @@ export const loadHistory = async (
 		unreadNotLoaded?: number;
 	};
 };
+
+/**
+ * Accepts a room invite for the authenticated user.
+ *
+ * Processes a room invitation by accepting it, which grants the user
+ * access to the room. This is essential for federated room workflows
+ * where users receive invitations rather than auto-joining.
+ *
+ * @param roomId - The unique identifier of the room
+ * @param config - Optional request configuration for custom domains
+ * @returns Promise resolving to the acceptance response
+ */
+export const acceptRoomInvite = (roomId: IRoom['_id'], config?: IRequestConfig) => {
+	const requestInstance = config?.request || request;
+	const credentialsInstance = config?.credentials || credentials;
+
+	return new Promise<{ success: boolean }>((resolve) => {
+		void requestInstance
+			.post(api('rooms.invite'))
+			.set(credentialsInstance)
+			.send({
+				roomId,
+				action: 'accept',
+			})
+			.end((_err: any, req: any) => {
+				resolve(req.body);
+			});
+	});
+};