Wire Signal, Email, SMS (Twilio), DingTalk, Feishu/Lark, and WeCom into
the hermes setup gateway interactive wizard. These platforms all had
working adapters and _PLATFORMS entries in gateway.py but were invisible
in the setup checklist — users had to manually edit .env to configure them.
Changes:
- gateway.py: Add _setup_email/sms/dingtalk/feishu/wecom functions
delegating to _setup_standard_platform (Signal already had a custom one)
- setup.py: Add wrapper functions for all 6 new platforms
- setup.py: Add all 6 to _GATEWAY_PLATFORMS checklist registry
- setup.py: Add missing env vars to any_messaging check
- setup.py: Add all missing platforms to _get_section_config_summary
(was also missing Matrix, Mattermost, Weixin, Webhooks)
- docs: Add FEISHU_ALLOWED_USERS and WECOM_ALLOWED_USERS examples
Incorporates and extends the work from PR #7918 by bugmaker2.