Add News link to nav and Ginger Cat digest blurb on home

app/components/nav.tsx

@@ -8,6 +8,7 @@ const NAV_LINKS = [
   { href: "/about", label: "About", external: false },
   { href: "/projects", label: "Projects", external: false },
   { href: "/notes", label: "Notes", external: false },
+  { href: "https://news.kaichen.dev", label: "News", external: true },
   { href: "https://substack.com/@kaiiiichen", label: "Blog", external: true },
   { href: "/gallery", label: "Gallery", external: false },
 ];

app/page.tsx

@@ -95,6 +95,24 @@
             <p className="mt-1"><ListeningLine /></p>
           </div>
 
+          <div style={{ width: 40, height: 1, margin: "0" }} className="bg-zinc-200 dark:bg-zinc-700" />
+
+          <div style={{ fontFamily: "'Bitter'", fontWeight: 400, fontSize: 15, lineHeight: 1.9 }} className="text-zinc-700 dark:text-zinc-300">
+            <p>Want a daily digest from my Ginger Cat bot?</p>
+            <p className="mt-1">
+              It’s on{" "}
+              <a
+                href="https://news.kaichen.dev"
+                target="_blank"
+                rel="noopener noreferrer"
+                className="underline underline-offset-2 decoration-zinc-300 dark:decoration-zinc-600 hover:text-zinc-900 dark:hover:text-zinc-100 transition-colors duration-150"
+              >
+                news.kaichen.dev
+              </a>
+              .
+            </p>
+          </div>
+
           {/* Social links — icon row, pinned to bottom */}
           <div className="flex items-center gap-4 mt-auto">
             <a
@@ -146,7 +164,7 @@
               rel="noopener noreferrer"
               aria-label="Signal"
             >
               <img
                 src="/Signal-Logo-Black.svg"
                 alt="Signal"
                 className="w-5 h-5 opacity-35 hover:opacity-100 transition-opacity duration-300 ease-out"