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* feat(lark): prefetch surrounding group context on @-mention (MUL-3084) In Feishu group chats the Bot only saw the single message that @-mentioned it — never the surrounding conversation — because the inbound enricher only inlined context the user explicitly attached (a quoted reply or a merge_forward), and the API client had no way to list a chat's history. Add APIClient.ListChatMessages (GET /open-apis/im/v1/messages, container_id_type=chat, ByCreateTimeDesc, page_size clamped to Lark's 50 cap) and, for a group message addressed to the Bot, prefetch a bounded window of recent messages and inline them as a <recent_context> block ahead of the user's own message. The trigger and any quoted parent are excluded so nothing is duplicated; speakers are labeled positionally (User 1/2 / Bot); failures degrade to a visible placeholder and never block ingestion. Window size is configurable via InboundEnricherConfig.RecentContextSize (<=0 disables); production wires DefaultRecentContextSize (20). One list call per addressed turn keeps the fetch within the inbound ACK / EnrichTimeout budget. Co-authored-by: multica-agent <github@multica.ai> * feat(lark): anchor group context window to trigger time, default 10 Address review feedback on MUL-3084: - Anchor the recent-context prefetch to the trigger message's time: thread the message create_time through InboundMessage and pass it as the list end_time (millis -> seconds), so the window is the conversation up to the @-mention rather than whatever is newest when the slightly-later prefetch HTTP call runs. end_time is omitted when the time is missing/unparseable (falls back to newest N). - Lower DefaultRecentContextSize from 20 to 10. Co-authored-by: multica-agent <github@multica.ai> * docs(lark): clarify recent-context persistence stance and fetch-window semantics Co-authored-by: multica-agent <github@multica.ai> * fix(lark): region-aware doJSON for ListChatMessages after rebase origin/main merged #3815 (Lark dual-region support), which changed doJSON to take a per-call baseURL resolved via resolveBaseURL(creds). Adapt the new ListChatMessages call to that signature so the backend build passes against latest main, and refresh the now-stale ListMessagesParams comment (EndTime is exposed). Co-authored-by: multica-agent <github@multica.ai> --------- Co-authored-by: J <j@multica.ai> Co-authored-by: multica-agent <github@multica.ai>