Why: Completion or progress from an earlier task could appear in the process of an unrelated newer answer.
Evidence: The new ownership regression fails before the guard and passes afterward; the frontend suite, TypeScript and unchanged export gate pass.
Impact: Project child progress only into its originating live turn while still reconciling background results.
Refs: feature/workbench-flow-completion chronological display requirement
Why: A rejected result-reference request could discard the user text or uploads after the composer cleared.
Evidence: 286 frontend tests, TypeScript and the unchanged unused-export gate pass; mixed-input browser regression preserves the draft.
Impact: Validate incompatible inputs before clearing, retain failed pending input with its request identity, and require explicit retry while other messages can continue.
Refs: feature/workbench-flow-completion review frontend-races finding
Why: Repeated progress and coupled scrolling obscured chat, and task choices lacked a reliable independent interaction path.
Evidence: 285 frontend unit tests and 23 browser scenarios pass locally before the shared event-loader extraction; final combination checks follow in Dev.
Impact: Coalesce cumulative progress, retain execution records, show timestamps and quiet notifications, support versioned work actions and explicit result references without automatic chat backfill.
Refs: feature/workbench-flow-completion
Why: Background frames blocked terminal reconciliation, stale failures left confirmations busy, and delayed page hydration changed mobile navigation.
Evidence: Review findings #1/#2/#3 have recorded red-to-green checks; all 210 Frontend tests, tsc and knip pass, plus six real navigation browser checks.
Impact: Keep sequence high-water and operation ownership, merge observations by object, and use an explicit preview-opening intent.
Refs: ce-code-review 20261012-165912-cb241b46 #1/#2/#3, UI04/UI09/UI10/UI11
Why: make material, background work, confirmations and files accessible to nontechnical users across desktop and mobile.
Evidence: Dev SELF receipts for Frontend tsc, 190 tests, knip baseline, build, nine fixture browser cases and two real HTTP/browser smoke cases using MockRunner.
Impact: existing API and permissions remain authoritative; stale events/queries and duplicate effects are guarded, while one file preview and reading state are preserved.
Refs: work-companion-ui design r0.2 and plan r1 U2-U5; UI01-UI13.
weichen