[EVIDENCE-030] Prepare Evidence Sprint release assets

[ootakazuhiko]

Summary

• Adds docs/product/EVIDENCE-SPRINT-RELEASE-ASSETS-2026-07-01.md with the Evidence Sprint release note draft, concept article outline, practical dogfood article outline, short/long announcement copy, supported/unsupported claims checklist, and follow-up issue candidates.
• Links the release assets from README, docs index, and articles index.
• Keeps outward-facing claims tied to observed repository evidence or marked as unsupported/future hypothesis.

Parent / Issue

• Closes [EVIDENCE-030] Prepare release note, article outline, and public announcement assets #3575
• Part of [Epic] Evidence Sprint: dogfood, measure, and publish ae-framework effectiveness #3567 / EVIDENCE-030

Acceptance

• Every outward-facing claim in the new release asset doc links to evidence or is marked unsupported/hypothesis.
• The practical article outline references the case study, evidence pack, and first-run demo.
• The concept outline explains ae-framework as an agent-neutral assurance control plane.
• The materials avoid vendor benchmarking and unsupported productivity/speed/safety claims.

Validation

• pnpm -s run check:doc-consistency
• pnpm -s run docs:lint
• node scripts/ci/validate-json.mjs
• pnpm -s run check:schemas
• pnpm -s run types:check
• pnpm -s run verify:lite (passed; existing lint findings remain warn-only under baseline)
• git diff --check
• git diff --cached --check

Boundaries / Rollback

• Documentation/navigation only; no runtime, schema, CI policy, assurance contract, demo behavior, or release automation behavior is changed.
• Release assets are draft materials, not a product launch or benchmark result.
• Rollback by reverting this PR to remove the release assets and navigation links.

[github-actions]

Generate Artifacts Preview

Generated at: 2026-07-01T12:14:05.203Z

• tests/api/generated: clean
• artifacts/codex: clean
• artifacts/spec: clean

[github-actions]

KvOnce Trace Validation

• OTLP: ✅ Success (Issues: 0)
• NDJSON: ✅ Success (Issues: 0)

[Copilot]

Pull request overview

Prepares outward-facing “Evidence Sprint” release materials and wires them into the repository’s documentation/navigation, keeping public claims bounded to observable in-repo evidence.

Changes:

• Add a new Evidence Sprint release-assets document (release note draft, article outlines, announcement copy, claim checklist, follow-up issues).
• Link the new release-assets doc from the root README, docs index, and articles index.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
README.md	Adds the new release-assets doc to the English/Japanese “preview launch material” and evidence/limitations link sets.
docs/README.md	Adds the new release-assets doc to recommended reading/index sections and the product doc list.
docs/product/EVIDENCE-SPRINT-RELEASE-ASSETS-2026-07-01.md	Introduces the Evidence Sprint outward-facing release assets package with explicit claim boundaries and evidence links.
docs/articles/README.md	Adds an index entry pointing to the release-assets source doc.

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