Add operator-only Control UI chat send timing milestones across gateway dispatch, model selection, agent-run start, dispatch completion, and post-dispatch completion. The Control UI records these server phases into the existing chat send timing buffer, and the gateway broadcast guard now scopes the new timing event with other read-visible chat events.
Harden Workboard modal and drawer accessibility.
Summary:
- Add Workboard dialog focus lifecycle handling for initial focus, Tab/Shift+Tab containment, Escape close, and opener restore.
- Mark Workboard background content inert/aria-hidden while modal or drawer dialogs are active.
- Add focused unit and Chromium browser smoke coverage for the audited modal/drawer accessibility requirements.
- Keep UI browser test aliases able to resolve shared workspace packages used by the Workboard view.
Verification:
- node scripts/run-vitest.mjs ui/src/ui/views/workboard.test.ts
- node scripts/run-vitest.mjs ui/src/ui/views/workboard.browser.test.ts
- (cd ui && pnpm exec vitest run --config vitest.config.ts --project browser src/ui/views/workboard.browser.test.ts)
- GitHub checks green at 6557012430
Start the active Control UI chat refresh after Gateway hello without waiting for the slower bootstrap fetch. Keep startup canvas embeds fail-closed until bootstrap config arrives, and recreate preview iframes when sandbox policy changes.
Fix WebChat stream/history reconciliation so visible assistant text survives stale history reloads, tool-history catch-up, and terminal final/error/abort events.\n\nRefactors the UI path into stream reconciliation, stream text, and typed tool-message helpers so persisted history and live stream state use the same matching rules.\n\nCloses #67035.
Fix the Control UI WebChat race where terminal assistant messages could be committed while chatStream was still live, causing history and active stream to render the same reply twice. Terminal final/aborted handling now snapshots fallback text, clears the active run/stream through the lifecycle owner, then appends the visible assistant message.\n\nFixes #71992.\n\nVerification: node scripts/run-vitest.mjs run ui/src/ui/controllers/chat.test.ts ui/src/ui/chat/run-lifecycle.test.ts ui/src/ui/chat/build-chat-items.test.ts; node scripts/run-vitest.mjs run ui/src/ui/app-chat.test.ts ui/src/ui/controllers/sessions.test.ts; node scripts/run-vitest.mjs run --config test/vitest/vitest.ui-e2e.config.ts --configLoader runner ui/src/ui/e2e/chat-flow.e2e.test.ts; Blacksmith Testbox tbx_01kt6a4zn7awkdy12d6b0q2d1q / run 26873514898; autoreview clean; PR CI 121 pass / 10 skipped.
Fixes #87699.\n\nRoutes ACK-completed Control UI chat sends through the existing run lifecycle reconciliation path so stale selected-session rows cannot re-enable the composer/Stop state after the conversation has already completed.\n\nVerification: focused UI/unit tests, Control UI E2E chat-flow test, autoreview clean, Testbox changed gate tbx_01kt68xvz17fcnmd3wj6f7pk6f, and PR CI run 26872484363 green after failed-job rerun for transient runner setup failures.
Add a coalesced chat.metadata Gateway method so the Control UI can fetch model and command metadata without blocking a clean first message path. Reuses existing models/commands builders, keeps compatibility fallback for older gateways, updates protocol artifacts, and adds focused gateway/UI/e2e coverage.
Add a combined chat.startup gateway method for Control UI startup hydration so first chat load can receive history and agents in one RPC, while falling back to chat.history for older/unadvertised gateways. Verified with focused UI/gateway tests, tsgo/oxlint/diff checks, clean autoreview, and Testbox changed gate tbx_01kt1dt6fqdtdbprsk48z8fn71.
Speed up Control UI first global chat sends by letting safe literal-global startup refresh use the fresh hello default before agents.list finishes, while keeping stale carried/cached agent ids out of that fast path. Adds chat history/send and gateway chat.send timing markers for the next latency pass.
Add chat-send first visible assistant output telemetry in the Control UI, plus Gateway diagnostics correlation attributes for chat.send dispatch spans. Verified with focused UI/Gateway tests, tsgo, oxlint, autoreview, PR checks, and Testbox-through-Crabbox check:changed.
Reduce Control UI draft-update work by guarding chat composer controls while keeping locale, session, model, settings, and busy-state invalidation. Verification: focused UI tests, format/lint/typecheck, autoreview clean, and changed gate tbx_01kt12rgjs8c077p2s0wmcsbyf.
Reduce Control UI draft-update work by guarding transcript group rendering while preserving assistant attachment availability invalidation. Verification: focused UI tests, format/lint/typecheck, autoreview clean, and changed gate tbx_01kt11qyc20ejbsbt8kd79bamx.
Reduce Control UI typing work by avoiding slash-menu rerenders for ordinary non-command drafts. Verification: focused UI tests, format/lint/typecheck, autoreview clean, and changed gate tbx_01kt1086xrbxfzm85vynsf25hq.
Debounce draft-only Control UI chat composer persistence while snapshotting pending drafts so session changes and teardown still flush the correct state. Verified with focused UI lifecycle/composer tests, format, oxlint, tsgo core/UI test, clean autoreview, and PR checks.
