feat(website): group changelog patches by minor release

Keep each patch dated and directly linkable while reducing top-level changelog noise.

packages/website/src/styles.css

@@ -176,6 +176,7 @@
 }
 
 .changelog-release-heading:hover .changelog-heading-anchor,
+.changelog-patch-heading:hover .changelog-heading-anchor,
 .changelog-heading-anchor:focus {
   opacity: 1;
 }
@@ -184,13 +185,44 @@
   color: var(--color-foreground);
 }
 
+.changelog-patches {
+  display: grid;
+  gap: 2.5rem;
+}
+
+.changelog-patch + .changelog-patch {
+  border-top: 1px solid var(--color-border);
+  padding-top: 2.5rem;
+}
+
+.changelog-patch-heading {
+  position: relative;
+  display: flex;
+  align-items: baseline;
+  gap: 0.625rem;
+  scroll-margin-top: 1.5rem;
+  margin-bottom: 1.25rem;
+}
+
+.changelog-patch-title {
+  color: var(--color-foreground);
+  font-size: 1rem;
+  font-weight: 500;
+  line-height: 1.4;
+}
+
+.changelog-patch-heading .changelog-release-date {
+  margin-bottom: 0;
+}
+
 .changelog-release-notes {
   color: color-mix(in srgb, var(--color-foreground) 76%, transparent);
   font-size: 0.9375rem;
   line-height: 1.7;
 }
 
-.changelog-release-notes h3 {
+.changelog-release-notes h3,
+.changelog-release-notes h4 {
   margin-top: 1.75rem;
   margin-bottom: 0.625rem;
   color: var(--color-muted-foreground);
@@ -199,7 +231,8 @@
   line-height: 1.4;
 }
 
-.changelog-release-notes h3:first-child {
+.changelog-release-notes h3:first-child,
+.changelog-release-notes h4:first-child {
   margin-top: 0;
 }