slice 4: accent palette refinement — blue → teal

Replace the four accent-family hex codes site-wide with the teal palette
(keeps the dark theme; only swaps the accent family, not the dark base):

  #3b82f6 (accent primary CTA)   → #5B7C8D  (teal)        [839×]
  #2563eb (accent-dark / hover)  → #4A6473  (darker teal) [44×]
  #60a5fa (info link, lighter)   → #8FB0C3  (mid teal)    [68×]
  #1e3a5f (accent-muted bg)      → #2F4F5F  (navy)        [44×]

tailwind.config.js tokens updated to match (accent/accent-dark/accent-muted).
Sweep also covers tailwind.css. 108 files touched. The dark base (#0d0d0d,
#111, #161616, #1a1a1a etc.) is intentionally untouched.

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

src/app/about/team/page.tsx

@@ -57,7 +57,7 @@ export default async function TeamPage() {
               <div className="flex-1">
                 <h2 className="font-serif text-lg font-semibold">{p.name}</h2>
                 {p.beat && (
-                  <div className="text-[10px] font-mono uppercase tracking-wider text-[var(--color-text-info,#60a5fa)] mt-0.5">
+                  <div className="text-[10px] font-mono uppercase tracking-wider text-[var(--color-text-info,#8FB0C3)] mt-0.5">
                     {p.beat.replace(/-/g, " ")}
                   </div>
                 )}