Add author bio with credentials and photo

Author attribution with genuine, verifiable credentials functions as a trust signal that both human readers and search systems increasingly weight in evaluating content credibility, and the underlying logic is straightforward: content making claims or offering advice carries more warranted confidence when a real, identifiable, credentialed person stands behind it than when it's anonymous or attributed only to a generic organizational voice.

The specificity of the bio is what actually generates this trust effect — a vague "our team of experts" attribution provides no real, checkable signal, since there's nothing concrete to evaluate. A genuine bio, with real credentials and real, specific relevant experience, gives a reader or evaluating system something they could, in principle, verify, and that verifiability is precisely what separates genuine credibility signal from decorative attribution that provides no real substance.

The photo requirement is not merely aesthetic — a real photo, rather than a generic avatar or stock image, reinforces the sense that a genuine, specific person is behind the content, which measurably affects reader trust even though it's a subtle, largely unconscious signal most readers wouldn't articulate as a deliberate factor in their evaluation of the content's credibility.

Applying this consistently across every post, rather than only on select high-value content, matters for the cumulative trust effect across the site — a site where author attribution is inconsistent, present on some posts and absent on others, sends a weaker overall signal than one where every piece of content is consistently and genuinely attributed, since consistency itself becomes part of the credibility signal, demonstrating a genuine, sustained editorial standard rather than selective effort applied only where it felt worthwhile.