🤖 Harden auto-continue idempotency: requestId guard + backend dedupe #344
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Why another fix?
Message-ID guard reduced duplicates but users still observed rare double-sends.
Root cause in those cases: two distinct summary messages were created for
one compaction-run (different IDs) due to duplicated completion signals
(delete + message + final bump, reconnect/replay, or abort/accept flows).
What changed
Why this is obviously correct
Testing notes
_Generated with _