* fix(app): keep the draft-create handoff until the new chat is current
Creating an agent from the draft composer on web flashed the "Updating
messages" panel toast for 40-200ms. That toast means "this chat may be out
of date, we are catching up" — a chat this client just created cannot be.
The timeline reducer released the create handoff at the first synchronized
page, but the visibility catch-up flag only clears once catch-up settles,
and a fresh chat always has a parked follow-up "after" page because live
rows arrive during the tail fetch. Between the two releases the state
machine saw a hydrated chat with no handoff and a pending catch-up, which
resolves to the resume toast. #4863 turned that branch from silent to
status, which is what made the window visible.
Both signals now flip in one synchronous call: createViewedTimelineSync
gains an onTimelineCurrent port, called from setVisibilityCatchUpReady —
the single place the sync declares a chat current, already covering the
parked follow-up and the fetchLatestTail overflow path. The owner
implements it by clearing the handoff. The optimistic "running" override
therefore lasts one extra round trip.
The state machine and sync-status rules are unchanged; they were correct.
* fix(app): release the create handoff when a chat leaves timeline demand
Closing a new chat's tab before catch-up settled left its sent attempt in
useCreateFlowStore forever. Reopening it in the same session then supplied
optimistic-create continuity for an authoritative chat: the panel showed it
as running and suppressed "Updating messages" while the real catch-up ran —
the state this fix exists to protect. An offline or slow host widens that
window from milliseconds to minutes.
Leaving the demanded set ends the owner's obligation to a chat exactly as
reaching current does, so onTimelineCurrent becomes onCatchUpEnded and fires
on both. It reports after the membership commit, so the sync never describes
itself mid-transition. Disconnect and backgrounding preserve demand and
therefore preserve the handoff.
Give each observation a server-issued ID owned by its physical connection. Preserve snapshot-only reads and combined list-and-subscribe, source-bound replies, lifecycle cleanup and legacy wire compatibility.
* Revert "Restore cached conversations before reconnecting (#4421)"
This reverts commit 1c51b52d07.
* fix(app): restore provider loading on native
* fix(app): preserve native navigators across appearance changes
Reapply the isolated appearance boundaries and native menu transform origin from #4421 so appearance hydration preserves native navigator and gesture host lifetimes.
* fix(app): retain cached baselines during live updates
Read the timeline concurrently with agent preparation and reconcile display-only cache rows beneath the live head using the existing reducer. Merge cached directory entries beneath live state while preserving the existing checkpoint race guard.
* fix(app): restore cached conversations before reconnecting
Give each host one timeline write authority so cache restores, live events and fetched pages publish consistent rows and coverage. Persist a moving 40-entry restart page independently of loaded scrollback, and keep native navigation mounted while startup settings hydrate.
* fix(app): recover cache writes after initialization failures
Keep accepted writes pending and retry initialization without another UI update. Publish the storage index only after loading succeeds, while queued host identity changes still settle in order.
* test(app): wait for sidebar and workspace transitions
Viewport intersection and leaving the creation route can precede completed UI transitions. Wait for the layering hit test and selected agent tab before asserting or navigating again.
* fix(app): restore provider loading on native clients
The native AbortSignal lacks throwIfAborted, so successful provider responses failed before reaching every model selector. Preserve both cancellation boundaries using the supported aborted property and the existing query cancellation error.
* perf(app): restore live sessions immediately after resume
Foregrounding now reconnects every host without waiting for scheduled backoff, while cached turns, timelines, agents, and workspaces remain internally consistent until authoritative catch-up arrives. Replica persistence is keyed and incremental so ordinary updates avoid whole-directory serialization.
* fix(app): preserve turn ownership through session updates
Stream turn closure now wakes queued-message delivery, while same-turn snapshots retain local cancellation state. Offline liveness remains visible until an authoritative close arrives.
* fix(app): preserve pending chat cache writes and trim resume refactor
Directory baseline replacement must preserve independently accepted timeline changes until the deferred flush. Keep the reconnect and persistence fixes while removing the session-data facade and broad read-hook migration.
* fix(app): initialize reconnect policy from current app state
Initialize visibility before host bootstrap so a background mount cannot leave reconnect enabled. Seed sidebar fixtures through the workspace owner so cache hydration preserves their rows.
* test(app): verify submission settlement across reconnect
Keep submission acknowledgement separate from turn liveness: disconnect preserves the running turn until authoritative catch-up. Wait for confirmed running chrome before exercising queued cancellation so the alternate-send shortcut cannot race turn startup.
* docs: remove cache implementation recap
Drive the streaming assertion from the actual turn lifecycle so iframe replacement at completion is not mistaken for diagram loss. Preserve the cached timeline range during reload reconciliation so a projected message spanning the cache cursor replaces its partial prefix instead of being appended to it.
* fix(app): preserve archived agent navigation
Make explicit archived-agent opens one atomic layout command and defer them until persisted layout hydration. Use the provider's numeric active-session sentinel so recovery can complete.
* fix(app): preserve timeline resume during hydration
Paint persisted canonical rows with the current live head and retain their resume cursor. This prevents tail replay without dropping stream updates that arrive while replica storage loads.
* fix(app): serialize replica reads with cache writes
* fix(app): paint cached conversations before reconnect
Cold startup restored every saved host before publishing any session, so a valid cached chat was blocked behind unrelated directory validation and network-only readiness. Directory and timeline owners now resolve demand through typed storage and authoritative reconciliation while consumers remain source-agnostic.
* fix(app): stabilize demand-driven cache restore
Create host projections before network availability, route cached workspace and timeline preparation through their owners, and coalesce directory reconciliation per online connection. Update browser cache fixtures for per-agent timeline rows.
* fix(app): resume cached timeline through owner
* fix(app): surface timeline owner load errors
Mohamed Boudra