Chat replies now list the envs that reach them (keys and descriptions,
never values), so a bot no longer asks for keys that are set or "checks"
them with show_secret or printenv. request_secret refuses a key that's
already set unless the user asked to replace it, and search_computers
says envs aren't loaded in its shell.
start_task and delegate_task results say "Run #N" and that list_tasks
doesn't show it, since bots sent users to the to-do list for queue jobs.
start_task refuses a second open run in the session on the same
computer unless it's separate work, and says how many runs are ahead on
that computer.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
