fix(light-mode): JSON panel header dark, orange Ansible card overrides

- JSON panel header (bg-slate-900) no longer flips to light gray inside
  the dark terminal block — scoped override keeps it #161b22
- Title text and copy button styled consistently for dark context
- Orange Ansible status card gets proper light-mode colors (orange-50 bg,
  orange-200 border, orange-600 text)
- application/json badge tweaked to text-indigo-400 for consistency

src/components/BookingDetailsModal.tsx

@@ -320,7 +320,7 @@ export default function BookingDetailsModal({
                 <Database className="w-3.5 h-3.5" />
                 GET /api/bookings/{booking.id}
               </span>
-              <span className="text-indigo-300 bg-indigo-500/15 border border-indigo-500/30 px-1.5 py-0.5 rounded font-mono text-[9px]">application/json</span>
+              <span className="text-indigo-400 bg-indigo-500/20 border border-indigo-500/30 px-1.5 py-0.5 rounded font-mono text-[9px]">application/json</span>
             </div>
             <div className="p-4 relative overflow-x-auto max-h-[260px] overflow-y-auto">
               <button