Recapture the current Ember Light product UI

[lastobelus]

Outcome

Replaces every public product screenshot with a real, sanitized capture of the current #195 three-region UI in Ember Light.

Stack

• Base: public-theme PR Restyle public surfaces for Ember Light #212 (t3code/public-ember-light)
• This is slice 3 of the visual-refresh stack under umbrella PR Coordinate Ember Light public visual refresh #205.
• The demo and final launch-assets PR will stack on this slice.

What changed

• npm run capture:stills builds and seeds the isolated capture instance, drives only its real renderer over a loopback-only CDP endpoint, captures four stable UI states, validates each PNG, stops the app, and restores the pristine fixture.
• Replaced the same four public assets at 2360×1520, RGB, 144 dpi: review editor, Projects + All Annotations, source proposal diff, and Review context.
• README now uses only the strongest editor capture; Pages keeps all four with current alt text and captions.
• The launch manifest pins producing commit 354c9ef023fc181745413fa5f5746bfbc9b447c9 and each output SHA-256.

Verification

• Original-resolution visual inspection passed for all four images.
• Visible paths, repositories, review/thread IDs, PRs, provider, and machine labels are fixture-only; no canonical or private state was used.
• npm run ci:local: 921/921 tests plus smoke passed.
• Focused public capture + Pages tests: 26/26 passed.
• GitHub CI is green on head 011c050.
• Capture app stopped; fixture reset to Inbox → block 1 → Selected block.

Human product QA remains deferred by the machine interaction policy; deterministic rendered inspection is complete.

Boundary

This PR owns capture-only UI automation, replacement of the same four PNGs, their alt text/captions, README image selection, and binary/privacy validation. It does not record the demo, generate final social cards, or mutate live GitHub metadata.

Tracks the screenshot portion of #16. Child of #205, #210, and #212.

[lastobelus]

Work intent

phase: completed
summary: "Captured and verified four sanitized current-UI Ember Light stills through the isolated real app renderer."
touch-points:
  - "scripts/capture-stills.ts and package.json"
  - "docs/user/assets/markover-*@2x.png"
  - "docs/user/index.html screenshot alt text and captions"
  - "README.md strongest-image presentation"
  - "doc/launch/issue-16/capture-manifest.json"
  - "test/public-capture.test.ts and test/docs-site.test.ts"
done-when:
  - "one opt-in command launches the sanitized real app with automation limited to the loopback capture instance and exact recorded clean commit"
  - "the four stable screenshot names show editor, All annotations, source proposal, and Review context states in the current App header and three-pane Ember Light UI"
  - "every PNG is exactly 2360x1520 RGB at 144 dpi, with no compositing, regeneration, AI editing, private paths, real repositories, real review/thread IDs, notifications, or unrelated chrome"
  - "README uses only the strongest editor capture and Pages exposes all four with accurate current alt text and captions"
  - "focused asset/privacy checks, npm run ci:local, git diff --check, and human visual inspection of all four captures pass"
excludes:
  - "recording, encoding, or publishing the demo movie"
  - "generating social-card or poster assets"
  - "mutating live GitHub metadata or uploading a social preview"
  - "changing product UI behavior or adding a general screenshot service"
  - "using canonical, development-instance, or private review state"
blocked-by: []
may-block:
  - "demo-and-launch-assets child PR"
branch: "t3code/current-product-captures"
base: "t3code/public-ember-light"
pull-request: 213
head: "011c050"

Completion: merged after one finding-bearing review round; the stale pre-restack provenance hash was replaced with its retained equivalent, all focused checks and 921-test local CI passed, and the exact final head received a no-findings review.

[chatgpt-codex-connector]

Codex Review Summary

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Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-08-30T23:00:28.488580Z	3dae5d0	Manual request

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[chatgpt-codex-connector]

💡 Codex Review

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Reviewed commit: 7103028edb

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[lastobelus]

@codex review

[chatgpt-codex-connector]

Codex Review: Didn't find any major issues. Breezy!

Reviewed commit: 3dae5d0a5b

ℹ️ About Codex in GitHub

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• Comment "@codex review".

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

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