telegramR 0.0.1

• Initial CRAN release.
• Full MTProto client for Telegram: authentication, serialisation/deserialisation of the TL schema, encrypted transport, and session management.
• High-level helpers for downloading channel messages, reactions, and replies at scale (download_channel_messages(), batch_download_channels()).
• Two-factor authentication support via PasswordKdf.
• Story support via functions_stories.R request classes.