Chat Auto-Deletion with Pinned Chat & "Projects" Preservation

Please consider adding a feature for automatic chat deletion. I'd like options to auto-delete chats after set times (e.g., 24 hours, 1 week, 1 month). Crucially, there should be a setting to always keep pinned chats and chats within the SOON™️ to be released "Projects" feature, exempting them from auto-deletion. To be clear, this request is for permanent deletion, not a temporary trash bin feature. This would help manage chat history and privacy effectively.

Thanks,