FLT 75 REVIEW ROUND6

The tests pass, but leadership loss can still produce duplicate Jira tickets, and an interrupted or held success path can permanently retain a completed request as the thread's active envelope.

Full review comments:

• [P1] Recheck the leader fence after Jira creation — C:\Users\fives\source\repos\founder-intake-wt-c456\FounderIntake.Host\ConversationResponder.cs:239-240 If CreateAsync runs longer than the five-minute idempotency lease and this host loses leadership, the new leader can reclaim the reservation and create another ticket while the stale leader still proceeds to persist its result. Checking the fence only before the external call does not prevent this split-brain path; validate ownership again after the call before committing metadata, or otherwise make Jira creation itself durably idempotent.

• [P1] Close requests when a completed ticket is recovered — C:\Users\fives\source\repos\founder-intake-wt-c456\FounderIntake.Host\ConversationResponder.cs:157-160 When Jira creation succeeded but the confirmation reply was held or the process stopped before lines 267–268, the next confirmation enters this completed-ticket branch and returns without transitioning the request to Done or closing its active envelope. Every later message in that thread then remains bound to the old executing request, preventing the requester from starting a new request there; reconcile the state and active envelope before returning.