Render generic resource lists as cards, not raw JSON dump

A jq-shaped resource (e.g. the GiteaStarred showcase) previously fell
through to the raw <pre> JSON dump - same fallback path meant for
truly unstructured data. Added a card renderer for the common case
(array of plain objects): name/title as a linked heading, description
as body text, everything else as small key/value chips - same visual
language as AnswerRow's answer-fields, just for non-Answer data.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

style/main.css

@@ -374,6 +374,43 @@ input:focus, textarea:focus {
 .answer-action:hover { border-color: var(--accent); color: var(--accent); }
 .answer-action:disabled { opacity: 0.5; cursor: wait; }
 
+.item-list { display: grid; gap: 0.8rem; }
+
+.item-card {
+  border: 1px solid var(--line);
+  border-radius: 0.8rem;
+  padding: 1rem 1.1rem;
+  display: grid;
+  gap: 0.4rem;
+}
+
+.item-card-title {
+  font-family: var(--sans);
+  font-weight: 600;
+  font-size: 1rem;
+}
+
+.item-card-title a { color: var(--ink); text-decoration: none; }
+.item-card-title a:hover { color: var(--accent); text-decoration: underline; }
+
+.item-card-description { font-size: 0.9rem; color: var(--ink-dim); }
+
+.item-card-fields {
+  display: flex;
+  flex-wrap: wrap;
+  gap: 0.4rem 0.9rem;
+  margin-top: 0.2rem;
+}
+
+.item-card-field { font-size: 0.82rem; color: var(--ink-dim); }
+
+.item-card-field-key {
+  text-transform: uppercase;
+  letter-spacing: 0.06em;
+  font-size: 0.68rem;
+  margin-right: 0.3rem;
+}
+
 @media (max-width: 640px) {
   .hero { padding: 3rem 1.25rem 2rem; }
   .alt-card { padding: 1.4rem 1.3rem; }