Resolve the PR #8/#9/#10 stack on current dev, including Bitrix24 install callback hardening, migration renumbering, duplicate-domain fail-closed routing, UI textarea/mobile cleanup, and review hardening.
Guard unit coverage:
- MessageTargetEnforced helper table (10 session shapes)
- TestMessageToolCrossTargetGuard — 9 scenarios: DM/group same-target
pass, cross-target block, forward opt-in pass with notice; cron,
heartbeat, subagent, team FREE
- TestMessageToolCrossTargetGuard_TraceReplay — anchors the 019d9fcf
production trace against regression
- NoticeFallbackSender — msgBus-less deployment still gets the audit
breadcrumb via t.sender
- NoNoticeOnSendFailure — failed forward does not post a phantom notice
System prompt coverage:
- <current_reply_target> emitted for direct + group, omitted when
ChatID is empty
Pre-existing TestSelfSendGuard/text_to_different_chat_allowed updated
to pass forward=true — the test now correctly isolates the self-send
guard from the new cross-target guard.
Duy /zuey/