Security fixes, ready-to-deploy image, and rewritten docs
Audit fixes: - Wallet names were used unvalidated as file paths, so a name like "../<other-id>/x" reached another user's wallet directory or overwrote bot_settings.json. Names are now validated and every path is resolved and confirmed to sit inside the caller's own directory, which also blocks a planted symlink from escaping. - Tor mode leaked: the mempool.space fee check opened a direct clear-net connection, tying the server's IP to its Bitcoin activity. It now goes through Tor's SOCKS proxy to mempool's onion service, DNS included. - The xpub message was left in the chat forever. It reveals the wallet's whole address and balance history, so it is now deleted like the password is. - Inline buttons stay live on old messages, so a user removed from the allow-list could keep using them. Callbacks re-check authorisation, and auth_check now works for callback queries instead of raising on a null message. - Wallet names echoed back in callback_data are confirmed against the user's real wallet list. - Settings are written via temp file + atomic rename; a crash mid-write used to truncate the file and lose every user's wallet selection. - Replies were sent against messages that had just been deleted; deletion is now best-effort and cannot abort the flow. Deployment: - Allow-list can come from ALLOWED_USERS instead of a bind-mounted file, so a deployment needs no files on disk. Both sources merge when both are present. - A missing bind-mounted allowed_users.txt made Docker create a directory in its place and silently lock everyone out; the entrypoint now detects that and stops with an explanation. - Standard mode honours ELECTRUM_SERVER, which previously only worked in Tor mode despite being documented. - Added VERSION, push.sh, docker-compose.deploy.yml and .env.deploy.example for a two-file deploy off the published image. Docs rewritten in English and Persian around the name Telegtrum, leading with the security model and what it does not protect against. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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