Deploy-1 fix + P0-6/7/8: Suspense wrap, carousel arrows, banner reposition, search-box removal

Deploy-1 build failed because NewsPageClient now calls useSearchParams.
- src/app/news/page.tsx: wrap NewsPageClient in <Suspense> so static
  generation can bail out to client rendering cleanly.

P0-6 (Featured carousel arrows):
- FeaturedBento: brighten arrow buttons (text-[#ccc] over bg-[#1a1a1a]
  with #3a3a3a border; previously near-invisible #666 over the same
  background), enlarge to w-8 h-8, hover fills to blue. Wrap the
  arrow group with role/aria + Left/Right keyboard nav.

P0-7 (728x90 reposition):
- Header: move the leaderboard block from above the main nav to AFTER
  the sticky nav, so it sits between the nav and The Beat ticker.

P0-8 (remove Latest search box):
- ArticleFeed: drop the in-section search input + clear button. The
  top-right header search is now the sole search UI. searchQuery state
  remains since the active-filter chip code still references it.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/app/home-page/components/ArticleFeed.tsx

@@ -506,39 +506,9 @@ export default function ArticleFeed() {
             <span className="font-body text-xs text-[#555]">{sortedFiltered.length?.toLocaleString()} article{sortedFiltered.length !== 1 ? "s" : ""}</span>
           </div>
 
-          {/* Search + Filters */}
+          {/* Filters only — site-wide search lives in the top-right header */}
           <div className="mb-4 space-y-3">
-            {/* Search bar row with Advanced Filters toggle */}
             <div className="flex items-center gap-2">
-              <div className="relative flex-1">
-                <label htmlFor={`${feedId}-search`} className="sr-only">Search articles</label>
-                <SearchIcon
-                  size={14}
-                  strokeWidth={1.75}
-                  className="absolute left-3 top-1/2 -translate-y-1/2 text-[#555] pointer-events-none"
-                  aria-hidden="true"
-                />
-                <input
-                  id={`${feedId}-search`}
-                  ref={searchRef}
-                  type="search"
-                  value={searchQuery}
-                  onChange={(e) => { setSearchQuery(e.target.value); setPage(1); }}
-                  placeholder="Search articles by title, topic, or author..."
-                  aria-label="Search articles"
-                  aria-controls={`${feedId}-results`}
-                  className="search-input search-input-enhanced w-full pl-9 pr-9 py-2 text-sm"
-                />
-                {searchQuery && (
-                  <button
-                    type="button"
-                    onClick={clearSearch}
-                    aria-label="Clear search"
-                    className="search-clear-btn right-2.5">
-                    <CloseIcon size={11} />
-                  </button>
-                )}
-              </div>
               {/* Advanced filters toggle button */}
               <button
                 type="button"