feat: FAQ two-column layout, team swipe & counter, showcase improvements

- FAQ: split into 2 columns on desktop to reduce section height
- Team: remove description line-clamp, show full bio
- ShowcaseLayout: add swipe navigation on mobile, optional counter
- Counter shows current/total with gold accent styling

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

src/components/sections/Team.tsx

@@ -31,6 +31,7 @@ export function Team() {
               activeIndex={activeIndex}
               onSelect={select}
               onHoverChange={setHovering}
+              counter
               renderDetail={(member) => (
                 <div className="relative aspect-[3/4] max-h-[600px] w-full overflow-hidden rounded-2xl">
                   <Image
@@ -65,7 +66,7 @@ export function Team() {
                     )}
 
                     {member.description && (
-                      <p className="mt-4 text-sm leading-relaxed text-white/70 line-clamp-4 sm:line-clamp-6">
+                      <p className="mt-4 text-sm leading-relaxed text-white/70">
                         {member.description}
                       </p>
                     )}