505b36b7af
The Feishu, WeCom, QQ onboarding and Telegram managed-bot flows printed a
hard-coded 'pip install qrcode' tip when the qrcode package was missing. In
Hermes' isolated venv the bare pip either doesn't exist or targets an
unrelated system Python. Print '{sys.executable} -m pip install qrcode'
instead, matching the existing codebase convention for install hints.
Fixes #111695