Desktop P0: integrate composer transcript optimistic IM#278
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This was referenced Jun 5, 2026
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Summary
Desktop P0 integration PR replacing the separate R3/R5/R6A draft PR flow.
This combines:
useComposerCore, attachment utilities, PromptInput/IM input behavior alignment.docs/review/findings into P0/P1/P3 instead of keeping a second backlog.Supersedes draft PRs #272, #274, and #275.
Verification
git diff --check dev/delicious233..HEADcd app/desktop && corepack.cmd pnpm exec vitest run src\__tests__\useComposerCore.test.ts src\__tests__\attachment.test.ts src\__tests__\IMBlockRenderer.test.tsx src\__tests__\IMMessageView.test.tsx src\__tests__\useIMChat.test.ts --reporter=dot-> 5 files, 91 tests passedcd app/desktop && corepack.cmd pnpm typecheckKnown Baseline Debt Not Introduced Here
cd app/desktop && corepack.cmd pnpm test -- --reporter=dotcurrently fails outside this diff: shared UI tests hit React duplicate/renderer version invalid-hook-call failures, and edge-real tests still assert pre-envelope response shapes/lowercase error codes. Roadmap now tracks this under P3 CI governance.