Add wave emoji favicon, update footer with nofi + mycofi links

- Add 🌊 SVG favicon to fix 404 on /favicon.ico
- Remove "Back to NoFi" button from CTA section
- Add nofi.lol and mycofi.earth links to footer

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

app/icon.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><text y=".9em" font-size="90">🌊</text></svg>

components/sections/CTASection.tsx

@@ -92,14 +92,6 @@ export default function CTASection() {
           </p>
         </ScrollReveal>
 
-        <ScrollReveal delay={0.5}>
-          <a
-            href="https://nofi.lol"
-            className="inline-block border border-flow/15 px-10 py-4 text-foam/30 hover:text-flow/60 hover:border-flow/40 hover:bg-flow/5 transition-all duration-700 text-sm rounded-full font-light"
-          >
-            ← back to NoFi
-          </a>
-        </ScrollReveal>
       </div>
 
       {/* Footer — clean, minimal */}
@@ -109,12 +101,20 @@ export default function CTASection() {
         <span className="text-mist/20 text-xs font-light">
           Part of the CoFi cinematic universe
         </span>
-        <a
-          href="https://nofi.lol"
-          className="text-mist/20 text-xs font-light hover:text-flow/40 transition-all duration-700"
-        >
-          nofi.lol
-        </a>
+        <div className="flex gap-6">
+          <a
+            href="https://nofi.lol"
+            className="text-mist/20 text-xs font-light hover:text-flow/40 transition-all duration-700"
+          >
+            nofi.lol
+          </a>
+          <a
+            href="https://mycofi.earth"
+            className="text-mist/20 text-xs font-light hover:text-flow/40 transition-all duration-700"
+          >
+            mycofi.earth
+          </a>
+        </div>
       </footer>
     </section>
   )