Post Public Key Link Step 4 Implementation Summary

Stage 1 - Add conditional public-key link metadata

• Changes:

  • Added canonical public-key path and /source/current/ link metadata during post hydration when the author identity and stored key resolve successfully.

  • Reused post_identity_details.php for thread-root, thread-post, and single-post rendering.

  • Preserved the existing bootstrap-post public-key details display and keyless-post behavior.

• Verification:

  • php -l src/ForumRewrite/Application.php

  • php -l templates/partials/post_identity_details.php

  • php tests/run.php LocalAppSmokeTest::testPostAndActivityLinkAdjacentSignatureFiles

  • Reflection smoke check confirmed the expected uppercase fixture key path and href.

  • git diff --check passed for the stage files.

• Notes:

  • The repository already validates and serves canonical public-key files through the existing source routes; no new route or schema change was needed.

Stage 2 - Add signed and keyless rendering coverage

• Changes:

  • Added a smoke test that verifies no public-key link is shown for a keyless post.

  • Added assertions that the same canonical public-key link appears in both thread and single-post views when the author key is available.

• Verification:

  • php -l tests/LocalAppSmokeTest.php

  • php tests/run.php LocalAppSmokeTest::testPostPagesExposeAvailableAuthorPublicKeyLink

  • php tests/run.php LocalAppSmokeTest::testPostAndActivityLinkAdjacentSignatureFiles

  • git diff --check passed for the stage files.

• Notes:

  • Coverage uses the existing parity fixture and read-model profile data; no fixture or schema changes were required.

Stage 3 - Move link to post details page

• Changes:

  • Removed the public-key link from shared thread and post-card identity details.

  • Added the conditional link to the individual post details header at /posts/{post_id}.

  • Kept the existing bootstrap-post technical key display unchanged.

• Verification:

  • Focused rendering coverage confirms the link is absent from the thread view and present once on the individual post view.

  • Existing keyless-post and adjacent-signature behavior remain covered.

• Notes:

  • This follows the clarified placement requirement without adding a new route or data contract.

Stage 4 - Place link below signature metadata

• Changes:

  • Moved the individual post public-key link below the existing source and signature metadata block.

  • Added a regression assertion for the required ordering.

• Verification:

  • Focused post rendering test confirms Signature: precedes Public key:.

  • PHP syntax checks and whitespace validation pass.

• Notes:

  • The link remains limited to individual post details pages.