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/admin/review-queue/[id]/page.tsx

@@ -41,12 +41,12 @@ export default async function ReviewDetailPage({ params }: { params: Promise<{ i
 
   return (
     <main className="mx-auto max-w-6xl px-6 py-10 text-[#e5e7eb]">
-      <Link href="/admin/review-queue" className="text-sm text-[#60a5fa] hover:underline">
+      <Link href="/admin/review-queue" className="text-sm text-[#8FB0C3] hover:underline">
         ← Back to queue
       </Link>
 
       <header className="mt-4 mb-6 border-b border-[#222] pb-4">
-        <div className="flex items-center gap-3 text-xs uppercase tracking-wider text-[#60a5fa]">
+        <div className="flex items-center gap-3 text-xs uppercase tracking-wider text-[#8FB0C3]">
           <span>{persona?.name || "—"}</span>
           <span className="text-[#4b5563]">·</span>
           <span>{art.category}</span>