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Benjamin Carlsson
f988ada4bf
## Why A lost Cloud reply stream previously required reopening the conversation, even when it was idle. Recover the displayed conversation automatically while holding queued input until its reply stream is usable. ## What changed - Add bounded retries for transient stream failures in the displayed, idle conversation, with credential and network-policy checks. Keep explicit reopen behavior when recovery is unavailable or fails. - Enable HTTP/2 keepalive pings for Cloud connections. - Queue input while disconnected and resume ordinary submission after recovery. Mark recovered history as potentially incomplete so an explicit reopen reloads missed turns while preserving drafts and reconciling pending submissions. - Store retained input per backend and apply background settings updates to the owning backend's drafts. ## Testing Add regression coverage for queued input during disconnection and extend resume and backend-handoff tests to cover history refresh, draft preservation, and retained settings. GitOrigin-RevId: 3d753e53d3c0d594680a90cac8a75fe33b91e219