feat: replace technical drawings with premium animated design elements (DrillOrbit + StratumLines)

Former-commit-id: f56a9d40b6b4068691b1d8851da455da6514fa3c

components/blocks/ReferencesSlider.tsx

@@ -5,6 +5,7 @@ import { motion } from 'framer-motion';
 import Link from 'next/link';
 import Image from 'next/image';
 import { HoverShineOverlay } from '@/components/ui/HoverShineOverlay';
+import { DrillOrbit } from '@/components/ui/decorations/DrillOrbit';
 
 export interface Reference {
   id: string;
@@ -151,6 +152,8 @@ export function ReferencesSlider(props: ReferencesSliderProps) {
           <svg xmlns="http://www.w3.org/2000/svg" className="w-5 h-5" viewBox="0 0 24 24" fill="none" stroke="currentColor" strokeWidth="2.5" strokeLinecap="round" strokeLinejoin="round"><line x1="5" y1="12" x2="19" y2="12"></line><polyline points="12 5 19 12 12 19"></polyline></svg>
         </Link>
       </div>
+      {/* Decorative: abstract HDD bore trajectory */}
+      <DrillOrbit side="left" />
     </section>
   );
 }