feat(legal): update AGB to version 3-2026 and add support for markdown links in AGB text

app/[locale]/agb/page.tsx

@@ -74,7 +74,7 @@ export default function AGB() {
               <p className="text-slate-500 font-medium">{stand}</p>
             </div>
             <a
-              href="/assets/AGB MB Grid 1-2026.pdf"
+              href="/assets/AGB MB Grid 3-2026.pdf"
               download
               className="btn-primary !py-3 !px-6 flex items-center gap-2"
             >
@@ -91,7 +91,24 @@ export default function AGB() {
                 </h2>
                 <div className="space-y-4">
                   {section.content.map((paragraph, pIndex) => (
-                    <p key={pIndex}>{paragraph}</p>
+                    <p key={pIndex}>
+                      {paragraph.split(/(\[.*?\]\(.*?\))/g).map((part, i) => {
+                        const match = part.match(/\[(.*?)\]\((.*?)\)/);
+                        if (match) {
+                          return (
+                            <a
+                              key={i}
+                              href={match[2]}
+                              className="text-primary hover:underline font-medium"
+                              download={match[2].endsWith(".pdf")}
+                            >
+                              {match[1]}
+                            </a>
+                          );
+                        }
+                        return part;
+                      })}
+                    </p>
                   ))}
                 </div>
               </div>