refactor: centralize gold tokens, extract sub-components, clean up unused code

- Replace hardcoded hex colors with gold/gold-light/gold-dark Tailwind tokens
- Extract Schedule into DayCard, ScheduleFilters, MobileSchedule sub-components
- Extract Team into TeamCarousel, TeamMemberInfo sub-components
- Add UI_CONFIG for centralized magic numbers (timings, thresholds)
- Add reusable IconBadge component, simplify Contact section
- Convert Pricing clickable divs to semantic buttons for a11y
- Remove unused SocialLinks, btn-outline, btn-ghost, nav-link CSS classes
- Fix React setState-during-render error in TeamCarousel (deferred update pattern)

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

src/components/ui/FloatingHearts.tsx

@@ -1,6 +1,7 @@
 "use client";
 
 import { useEffect, useState } from "react";
+import { UI_CONFIG } from "@/lib/config";
 
 interface Heart {
   id: number;
@@ -15,7 +16,7 @@ export function FloatingHearts() {
   const [hearts, setHearts] = useState<Heart[]>([]);
 
   useEffect(() => {
-    const generated: Heart[] = Array.from({ length: 12 }, (_, i) => ({
+    const generated: Heart[] = Array.from({ length: UI_CONFIG.team.floatingHeartsCount }, (_, i) => ({
       id: i,
       left: Math.random() * 100,
       size: 8 + Math.random() * 16,
@@ -33,7 +34,7 @@ export function FloatingHearts() {
       {hearts.map((heart) => (
         <div
           key={heart.id}
-          className="absolute text-[#c9a96e]"
+          className="absolute text-gold"
           style={{
             left: `${heart.left}%`,
             bottom: "-20px",