HIDE_RESTRICTED_COMMANDS = True breaks !apropos command due to undefined attribute/method

[zaughon]

Describe the bug
Setting HIDE_RESTRICTED_COMMANDS = True in config.py breaks the apropos command.

To Reproduce

• errbot --init
• errbot to start the bot, then run !apropos help - Command works.
• Stop the bot and add HIDE_RESTRICTED_COMMANDS = True to config.py
• errbot and run !apropos help again. This time the command fails:

[@CHANGE_ME ➡ @errbot] >>> !apropos help
Computer says nooo. See logs for details:
'TextBackend' object has no attribute 'check_command_access'

errbot/errbot/core_plugins/help.py

Line 55 in c5a5218

or self._bot.check_command_access(msg, name)[0]

Grepping and searching through the repo, this is the only mention of self._bot.check_command_access, so it does in fact seem undefined
Same error will happen when using the Slackv3 backend.

Expected behavior
Command works.

Screenshots

Environment (please complete the following information):

• Errbot version: 6.2.0 (same issue happens with Master-branch using Slackv3 backend)
• OS version: Arch
• Python version: 3.13.1
• Using a virtual environment: yes
• Using Docker: Fails regardless of Docker.

Additional context