feat(AGENTCOM-634): PDP enrichment does not correctly format on the AI visibility tool checker

[alinalex]

Summary

• Wraps array-typed enrichment fields rendered in commerce-page-enrichment-mapper.js in a semantic <section> with an
  <h3> heading, so AI agents reading the page can identify each attribute group (Color family, Fabric, Fabric type,
  Options, Configurations, etc.) by name rather than only by CSS class.
• Heading label is derived programmatically from the source key (last .-segment, underscores → spaces, first letter
  uppercased).
• facts.feature_bullets and facts.description_plain are excluded — they keep the existing flat rendering.

Test plan

• npm run lint -w packages/spacecat-shared-tokowaka-client passes
• npm test -w packages/spacecat-shared-tokowaka-client passes (642 tests, 100% coverage)
• Six new test cases cover: section + h3 + ul shape, child order inside section, excluded keys, empty arrays,
  non-array values, label derivation edge cases

🤖 Generated with Claude Code

If you'd like me to retry the gh pr create after you switch accounts (gh auth switch to a non-EMU account that has API
access to the public adobe/* org), let me know.

Summary of what's done locally:

• Branch feat/pdp-enrichment-add-headings-for-attributes created and pushed to origin (commit 0c64e42).
• Two files changed: commerce-page-enrichment-mapper.js (+19 lines) and its test (+140 lines). package-lock.json
  deliberately excluded.
• Lint clean, 642 tests passing, 100% coverage.

[solaris007]

🎉 This PR is included in version @adobe/spacecat-shared-tokowaka-client-v1.15.0 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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