Preserve chat transcript and board-load recovery state

[Chris0Jeky]

A successful chat submission could lose the visible user instruction when the follow-up transcript read failed. Keep the submitted instruction beside the assistant reply until an authoritative refresh succeeds. Failed board-option reads now have a persistent error and explicit retry, reducing recovery effort while preserving explicit submission and board selection.

Refs #2004. This is a bounded recovery slice, not completion of the full issue.

Validation at 040c94d against 22fcac4:

• Author: four red regressions before implementation; 89 focused tests passed; full frontend 6,237 passed / 3 skipped; typecheck, scoped lint, build and diff checks passed.
• Fresh independent Terra review: SHIP; independently ran both changed test files, 41 tests passed; no confirmed HIGH/CRITICAL.
• Browser flow has not been exercised for this slice. Hosted CI is pending.
• One non-blocking display duplication case after successful bind followed by another failed refresh is tracked at Automation Chat produces prose, never proposals — the chat workflow needs re-thinking #2004 (comment). It does not resend a server action.

No canonical STATUS or MASTERPLAN edit; coordinator ownership remains reserved. Source and review evidence are recorded in the local milestone checkpoint.

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-09T13:24:45.453025Z	040c94d	PR opened

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[chatgpt-codex-connector]

💡 Codex Review

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Reviewed commit: 040c94d231

ℹ️ About Codex in GitHub

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• Open a pull request for review
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• Comment "@codex review".

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[Chris0Jeky]

Coordinator cleanup: verified local and remote head 040c94d, clean tracked state, and ignored inventory containing only disposable frontend dist/ and node_modules/. Worker confirmed no worktree processes or runtime listeners. Removed the completed worktree with plain git worktree remove; branch and all five changed files remain preserved remotely. No unique ignored artifacts required copying. Full-suite evidence was author tool session 62294 (6237 passed, 3 skipped, exit 0); no file-backed log was produced. Fresh review independently ran 41 tests. Human-action file remains unchanged.

[Chris0Jeky]

Delivery is now held for combined candidate #2830 at 3923500 on main06bd4d18e. It preserves the reviewed source commit, passed the full combined backend9096/5skip and frontend6243/3skip suites, browser SC-005, builds/lint/doc links, and fresh Terra integration review. Do not merge sources independently while the combined exact-base/head hosted gate qualifies. Once #2830 lands, coordinator will verify inclusion and reconcile these source PRs. Existing tracked MEDIUMs remain open; no new feature changes added.

[Chris0Jeky]

Delivered through #2830, merged as cca0716. Main tree c73859a9ba712192935fc13586260ab61a9fb22c exactly equals qualified39235004b; all three source heads are verified ancestors. GitHub automatically marked #2827/#2828/#2829 merged through preserved commits. Required ci-required.yml run34358736114 passed at the exact head/base, fresh Terra review passed and no unresolved threads remained. Tracked MEDIUMs remain follow-ups; no full parent-issue completion claim.