Every bot notice carries a Hide button, which deletes the message it sits on.
On a backup that message is the file itself: one tap, with no confirmation,
could remove the admin's only copy of the database. Backup files (the .db and
config.json, from the backup button, the scheduled job and the panel's
backup-to-Telegram endpoint) are now sent without a keyboard; other notices,
including the ban log file, keep Hide.
The backup button also left the menu above the files it sent, out of view at
the bottom of the chat. It now sends the Maintenance menu again below them and
removes the old one. A scheduled backup leaves the menu where it is.
Typed commands edited the remembered menu message, which a user who cleared the chat can no longer see, and then deleted the command, so /start left the chat empty again. Typed commands (/start, /status, /usage, /clearall) now send a new screen and then remove the old menu, or retire its buttons when it is past Telegram's delete window; button taps still edit in place. Closes#6997.
The bot rewrite sent only the rotated previous ban log, so today's bans stayed hidden until the daily rotation, and an empty file was uploaded and rejected. The bot now sends the previous and then the current log, skips missing or empty files, and replies No results only when neither can be sent. Closes#6990.
Every bot message is sent HTML-parsed while the intended markup lives
in the translation templates, yet the values filled into them were
escaped only at some call sites. Remarks and e-mails, which a node
chooses for the inbounds it reports, reached the scheduled report and
the client info unescaped and turned into markup, and the reports that
escaped their whole text instead showed the templates' own tags.
I18nBot now escapes every parameter value, the call sites drop their
own escaping and the whole-report escapes, the two values concatenated
outside a template are escaped where they are written, and callback
answers, which are plain text, are unescaped again.
The bot answered every action with a new message, so a chat filled with stale
menus whose buttons still acted, and long client or inbound lists were paged
through dozens of buttons. Each chat now has one live screen that is edited in
place: the menu is grouped into Server, Clients, Traffic and Maintenance, lists
open through inline search, the add-client flow starts from a draft card, QR
codes arrive as one labelled sheet, and repeated notices collapse into one with
a counter. A client's /start and /usage show only that client's own links and
usage, groups are refused, and the settings page warns when the bot's inline
mode is off. Admin topics, the indexed Telegram lookup and every locale,
Slovak included, carry over.