chore: completely remove all decorative animations as requested

Former-commit-id: 1efd9a9ae1d934a64375765f984740af874dd1a9

components/blocks/HeroSection.tsx

@@ -3,8 +3,6 @@ import Image from 'next/image';
 import Reveal from '@/components/Reveal';
 import { Badge, Container, Heading } from '@/components/ui';
 import { Button } from '@/components/ui/Button';
-import { HDDBoreAnimation } from '@/components/ui/decorations/HDDBoreAnimation';
-import { TrenchLayingAnimation } from '@/components/ui/decorations/TrenchLayingAnimation';
 
 export interface HeroSectionProps {
   title: string;
@@ -72,10 +70,6 @@ export const HeroSection: React.FC<HeroSectionProps> = (props) => {
             )}
           </div>
         </Container>
-        {/* Content-Aware Animation: HDD Drilling & Pipe Pullback */}
-        <HDDBoreAnimation className="top-1/3 -translate-y-1/2 opacity-60" />
-        {/* Content-Aware Animation: Trench Cutting & Pipe Laying */}
-        <TrenchLayingAnimation className="bottom-0 opacity-60" />
       </section>
     </Reveal>
   );