Prove one full review journey in a real browser

[itsjling]

Closes #28

Summary:

• run a deterministic browser review journey on desktop and the supported mobile viewport
• cover picker search, file changes, notes, live refresh, loading, empty, error, binary, and truncated states
• retain Playwright traces, screenshots, console errors, and server logs on failure

Stack:

• based on PR Add one-command live and mocked development modes #58 / issue Add one-command live and mocked development modes #25, which is based on PR Make the fresh-checkout demo self-contained #42 / issue Make demo development work in every fresh checkout #24
• also depends on PR Make the presenter headless and automation-friendly #48 / issue Make the presenter headless and automation-friendly #26 and PR Define responsive mobile support #40 / issue Choose and state the supported mobile target #27

Verification:

• npm run lint
• npm test (72 Node tests and 2 browser journeys passed)
• npm run docs:check
• npm run docs:build
• Fallow changed-code audit against codex/issue-025-demo-mode

Stack

1. Keep live refresh ordered and fault-tolerant #61
2. Make the fresh-checkout demo self-contained #42
3. Add one-command live and mocked development modes #58
4. Prove one full review journey in a real browser #59 👈 current

[chatgpt-codex-connector]

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[itsjling]

@codex review

[chatgpt-codex-connector]

💡 Codex Review

Here are some automated review suggestions for this pull request.

Reviewed commit: d47489ef5c

ℹ️ About Codex in GitHub

Your team has set up Codex to review pull requests in this repo. Reviews are triggered when you

• Open a pull request for review
• Mark a draft as ready
• Comment "@codex review".

If Codex has suggestions, it will comment; otherwise it will react with 👍.

Codex can also answer questions or update the PR. Try commenting "@codex address that feedback".