PUT verified original_schedule outside the lock, so a concurrent delete
between the check and the write resurrected the entry as a new one, and
two concurrent renames of the same original left both results present.
The existence check now runs inside _save_scheduled_message_locked
against the same snapshot the duplicate check uses, so create, update and
delete are each a single critical section.
Added a concurrency test: two simultaneous creates of one schedule now
produce exactly one 200 and one 409 with a single entry on disk.
Adds a Schedule page that lists every [Scheduled_Messages] entry with its
next run time and supports add, edit and delete. Writes go to config.ini
and queue a config reload, so schedules change without restarting the
bot, which was the actual request.
It edits the config section the bot already reads rather than
introducing a database table. reload_config() already re-runs
setup_scheduled_messages() with rollback, so there is nothing to keep in
sync and the schedule command lists exactly what the page shows.
Validation runs through the same parsers the scheduler uses, so the UI
cannot accept a schedule the bot would later reject. The builder
composes cron from plain-language options and previews the next five
runs; entries the bot cannot run are listed as "Not scheduled" with the
reason instead of being hidden, since a typo that silences a message is
what an operator most needs to see. The 15-minute floor for {cmd:...}
messages is enforced at save time too.
Also relabels the radio Disconnect button to "Stop Bot" behind a
confirmation (#240). It was never a radio-only disconnect: the main loop
runs while self.connected is true, so disconnecting exits the process.
That surprised an operator running under tmux with nothing to restart
it. disconnect_radio()'s docstring now says so as well.
agessaman