aesthetic-improvements: remove excessive hover effects from high-priority files
- Removed scale transforms (hover:scale-[1.02], hover:scale-110, group-hover:scale-110/105) from cards and images
- Removed decorative shadow/glow effects (hover:shadow-neon-cyan/20, hover:shadow-lg) from cards
- Removed hover-lift class (translateY + shadow) from base Card and Button components
- Replaced excessive effects with subtle hover:bg-white/5 or hover:opacity-90
- Preserved functional hover states (group-hover:opacity-100 for play overlays, hover:bg-accent/50 for interactive feedback)
- Updated 14 files: ProductCard, TrackCard, CourseCard, EquipmentCard, PostCard, ProfileView, card.tsx, SearchPage, PlayerControls, OrderSummary, DiscoverView, PlaylistCard, Sidebar, button.tsx
- Effects are now subtle and purposeful, aligning with Surgical Minimalism
- Action 11.4.1.3 complete
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