feat: polish motion with stronger easing, press feedback and reduced motion (#73)

- Override Tailwind ease-out/ease-in-out with stronger curves, add ease-drawer
- hoverOnlyWhenSupported so hover styles never stick on touch devices
- Replace transition-all with explicit properties across the public UI
- Press feedback via active:scale-[0.97] instead of hover:scale-105
- Global prefers-reduced-motion handling (CSS + MotionConfig reducedMotion="user")
- Mobile menu is a real drawer: stays mounted, inert when closed, Escape closes
- Progress and music bars animate scaleX/scaleY instead of width/height
- Fix undefined animate-spin-slow, contain hero CTA shine with overflow-hidden

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

app/_ui/ProjectDetailClient.tsx

@@ -69,7 +69,7 @@ export default function ProjectDetailClient({
           onClick={handleBack}
           className="inline-flex items-center gap-2 text-stone-500 hover:text-stone-900 dark:hover:text-white transition-colors mb-12 group bg-transparent border-none cursor-pointer"
         >
-          <ArrowLeft size={20} className="group-hover:-translate-x-1 transition-transform" />
+          <ArrowLeft size={20} className="group-hover:-translate-x-1 transition-transform duration-200 ease-out" />
           <span className="font-bold uppercase tracking-widest text-xs">
             {tCommon("back")}
           </span>
@@ -127,11 +127,11 @@ export default function ProjectDetailClient({
 
                             {project.live && project.live !== "#" && (
 
-                              <a href={project.live} target="_blank" rel="noopener noreferrer" className="flex items-center justify-between w-full p-5 bg-white text-stone-900 rounded-2xl font-black hover:scale-105 transition-transform group">
+                              <a href={project.live} target="_blank" rel="noopener noreferrer" className="flex items-center justify-between w-full p-5 bg-white text-stone-900 rounded-2xl font-black active:scale-[0.97] transition-transform duration-150 ease-out group">
 
                                 <span>{project.button_live_label || tDetail("liveDemo")}</span>
 
-                                <ExternalLink size={20} className="group-hover:translate-x-1 transition-transform" />
+                                <ExternalLink size={20} className="group-hover:translate-x-1 transition-transform duration-200 ease-out" />
 
                               </a>