* feishu: pass per-group systemPrompt to inbound context
The Feishu extension schema supports systemPrompt in per-group config
(channels.feishu.accounts.<id>.groups.<groupId>.systemPrompt) but the
value was never forwarded to the inbound context as GroupSystemPrompt.
This means per-group system prompts configured for Feishu had no effect,
unlike IRC, Discord, Slack, Telegram, Matrix, and other channels that
already pass this field correctly.
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* line: pass per-group systemPrompt to inbound context
Same issue as feishu: the Line config schema defines systemPrompt in
per-group config but the value was never forwarded as GroupSystemPrompt
in the inbound context payload.
Added resolveLineGroupSystemPrompt helper that mirrors the existing
resolveLineGroupConfig lookup logic (groupId > roomId > wildcard).
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
* Changelog: note Feishu and LINE group systemPrompt propagation
---------
Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Tak Hoffman <781889+Takhoffman@users.noreply.github.com>
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