Restore "Export Chat as .txt File" on iOS

•  iOS v1.15.0 had an option to export a chat as a .txt file, which was removed in v1.16.0 and replaced with export via encrypted link.

•  The .txt export was valuable because importing that file into a new chat effectively resets the context window, significantly reducing credit consumption on long conversations.

•  The encrypted link replacement does not achieve the same outcome:

•  Opening the link in a browser prompts you to download the app.

•  Tapping "Open App" (if already installed) simply copies the full chat back in with the same context usage — no reset occurs.

•  Request: Please bring back the .txt file export option, either as the default or as an additional option alongside the encrypted link.