refactor(pages,a11y,seo): enhance subpage metadata, semantic HTML, accessibility, and E2E regression tests

- Standardize Next.js Metadata and dynamic generateMetadata across all subpages
- Fix duplicate main landmark in publications page by replacing nested main with div
- Unify Members page spacing (space-y-10 sm:space-y-14, pt-6 md:pt-8) and responsive H2s
- Add aria-label and focus ring to CategoryNav View All links for a11y
- Derive dynamic course history semester ranges in Lectures page
- Add 3 comprehensive E2E test cases (test_08, test_09, test_10) for highlights, active border, CITE brand links, and English H1 headers

refer_landing_page/app/publications/page.tsx

@@ -1,8 +1,9 @@
+import type { Metadata } from "next";
 import { CategoryNav } from "./_components/CategoryNav";
 import { publications } from "../../content/publications";
 
-export const metadata = {
-  title: "Publications | ANL",
+export const metadata: Metadata = {
+  title: "Publications",
   description: "AI Agent Networking Lab (ANL) research publications and patents overview",
 };
 
@@ -23,7 +24,7 @@ export default function PublicationsIndexPage() {
   ).filter((p): p is (typeof publications)[0] => Boolean(p));
 
   return (
-    <main className="container-content py-8 sm:py-12 space-y-10 sm:space-y-14">
+    <div className="container-content py-8 sm:py-12 space-y-10 sm:space-y-14">
       {/* Page Header */}
       <section>
         <h1 className="font-serif text-4xl sm:text-5xl font-normal text-ink tracking-tight">
@@ -68,13 +69,13 @@ export default function PublicationsIndexPage() {
               )}
               {pub.venue && (
                 <p className="text-xs italic text-ink-mute">
-                  {pub.venue}
+                  {pub.venue}{pub.volume ? `, ${pub.volume}` : ""}
                 </p>
               )}
             </article>
           ))}
         </div>
       </section>
-    </main>
+    </div>
   );
 }