Add a prominent link to the full portfolio

The top bar's accent button becomes Portfolio (Email stays in the hero and
the contact band), the hero gets a Full portfolio button, and the project
list ends with a large block linking to it. The link points at Gitea's list
of repos with the portfolio topic; the sync supplies the count and the
resume file can override the target and label. Also eases the display
weight and tracking of the name in the dark theme.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01XtcZtnG4GQA1d6mW5PNrS9

components/projects.module.css

@@ -235,3 +235,48 @@
   }
   .item[data-span='6'] .plate { aspect-ratio: 16 / 10; }
 }
+
+/* The whole row is a link to the full portfolio; it closes the list. */
+.more {
+  display: flex;
+  flex-wrap: wrap;
+  align-items: center;
+  justify-content: space-between;
+  gap: 24px 40px;
+  margin-top: clamp(56px, 7vw, 104px);
+  padding: clamp(28px, 4vw, 52px) 0;
+  border-top: 1px solid var(--ink);
+  border-bottom: 1px solid var(--line);
+  text-decoration: none;
+}
+
+.more > span:first-child {
+  display: flex;
+  flex-direction: column;
+  gap: 10px;
+}
+
+.moreTitle {
+  font: 700 clamp(28px, 3.8vw, 54px) / 1.05 var(--font-head);
+  letter-spacing: -0.035em;
+}
+
+.moreText {
+  max-width: 52ch;
+  color: var(--muted);
+}
+
+.moreButton {
+  flex: none;
+  padding: 16px 28px;
+  border-radius: var(--radius-control);
+  background: var(--ink);
+  color: var(--paper);
+  font: 600 17px/1.2 var(--font-body);
+  transition: background-color 0.2s, color 0.2s;
+}
+
+.more:hover .moreButton {
+  background: var(--z);
+  color: #fff;
+}