Enhancement: Add branding footer to PR review comments

[ajianaz]

Description

When Cora self-review finds no issues, the PR comment is:

✅ No issues found. Code looks good!

When issues are found, the comment includes a footer:

Review powered by cora-cli · BYOK · MIT

The "No issues found" message is missing this footer.

Expected

Always include the footer in all review comment variants:

✅ No issues found. Code looks good!

Review powered by cora-cli · BYOK · MIT

Location

.github/actions/cora-review/action.yml — the Post PR comment step's JavaScript.

Priority

Low — cosmetic improvement for brand consistency.

Labels

enhancement, good first issue