fix(redesign): continue reproducible answers in live chat

[HomenShum]

What changed

• separates immutable receipt reruns from Continue in chat
• restores the receipt prompt, answer, and source lineage above the real live composer
• persists bounded role-aware continuation context and parent hash for reload recovery
• redacts private continuation context from public hash receipts
• fixes mobile min-content expansion that clipped the transcript and composer
• keeps the route-lazy markdown editor out of Workbox precache so dependency drift cannot trip the 2 MiB ceiling

Root cause

The reproducible answer page only linked to a fresh rerun and the chat launch/runtime contract had no parent transcript. The first responsive journey also exposed automatic grid min-content sizing expanding the restored chat beyond the mobile viewport.

Validation

• npx tsc --noEmit --pretty false
• 14 focused continuation/chat lifecycle/honesty/composer tests
• 13 design-system tests
• 3 Playwright pixel journeys: receipt desktop, continued chat desktop, continued chat mobile
• zero console errors, mojibake, or horizontal overflow; mobile composer enables after follow-up input

Local no-lock dependency extraction repeatedly omitted unrelated transitive files while building; the application and PWA bundles completed before the missing-package resolver report. Required clean-install CI remains the release gate.

No out-of-band Convex deploy was performed.

[vercel]

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Project	Deployment	Actions	Updated (UTC)
nodebench-ai	Ready	Preview, Comment	Jul 16, 2026 9:46pm

[github-actions]

PR size advisory

This PR adds 457 lines of substantive change. CONTRIBUTING.md defines a soft limit of ~400 LOC.

If the PR is genuinely cohesive (e.g. an architecture map, a generated migration, a deletion of a dead module), no action is needed. Otherwise consider:

• splitting into 2-3 PRs along independent concerns
• pre-discussing the architecture change in a GitHub Discussion before merge

This is advisory — it does not block the merge.

[github-actions]

✅ Dogfood Visual QA Gate: PASSED

Check	Status
Screenshots	23 captured (pass)
Walkthrough	9 chapters (pass)
Key Frames	9 extracted (pass)
Scribe Steps	8 how-to steps (pass)
Build	success

Artifacts

Download the dogfood-evidence-fafcb90 artifact from the Actions tab for full screenshots, frames, and walkthrough video.

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