fix: resolve review issues B1-B6 (color token alpha contract, Header contrast/budget B plan, Publications Overview page, N1-N8 cleanups) with 100% E2E PASS

refer_landing_page/app/publications/_components/CategoryNav.tsx

@@ -5,7 +5,6 @@ import { PubCategory } from "../../../content/types";
 
 interface CategoryNavProps {
   currentCategory?: PubCategory;
-  totalCount?: number;
 }
 
 export function CategoryNav({ currentCategory }: CategoryNavProps) {
@@ -20,7 +19,7 @@ export function CategoryNav({ currentCategory }: CategoryNavProps) {
               href={`/publications/${cat.slug}`}
               className={`px-4 py-2 rounded text-xs font-mono tracking-wider transition-colors ${
                 isActive
-                  ? "bg-vermillion text-ivory font-bold"
+                  ? "bg-vermillion text-white dark:text-ivory font-bold"
                   : "bg-paper text-ink border border-line hover:border-vermillion"
               }`}
             >