QR-login connects an iLink bot identity (...@im.bot), not a scriptable
personal WeChat account. iLink typically does not deliver ordinary WeChat
group events to these bots, so WEIXIN_GROUP_POLICY / WEIXIN_GROUP_ALLOWED_USERS
often have no effect regardless of value.
- Setup wizard: print iLink-bot caveat before the group-policy prompt; relabel
the allowlist input as 'group chat IDs (not member user IDs)'; note that
'open' / 'allowlist' only take effect if iLink delivers group events.
- Adapter: log a WARNING at connect() when WEIXIN_GROUP_POLICY is non-disabled
so the limitation is surfaced in gateway logs, not just docs.
- Docs: add a top-of-page warning callout to weixin.md explaining the iLink
bot identity, narrow the 'DM and group messaging' feature line to DM-only
with a group caveat, tighten the Group Policy section and troubleshooting
row, and clarify WEIXIN_GROUP_ALLOWED_USERS as group IDs (not user IDs)
in weixin.md and environment-variables.md.
Closes#17094
f317325279