feat: refactor Product page to match prototype design

Redesigned ProductCard and Product page based on original prototype:

ProductCard Component:
- Added gradient background matching prototype style
- Copied all SVG icons from prototype (US flags, HK flag, etc.)
- Implemented proper icon display with white background container
- Added category color variants (blue, green, purple)
- Risk level indicators with accurate colors
- Styled progress bar matching prototype
- Proper spacing and typography from CSS

Visual Elements:
- Radial gradient backgrounds on cards
- Glass-morphism effect with transparency
- Shadow and border effects from prototype
- Icon container with white background and shadow ring
- Category badges with colored backgrounds

Assets Added:
- frame-9230.svg, frame-9231.svg (US flag icons)
- hk0.svg (HK flag icon)
- chart-square1.svg
- All component SVG files from prototype
- View toggle icons

Styling:
- Followed prototype's style.css specifications
- Maintained exact color values and gradients
- Proper border radius and spacing
- Typography matching prototype

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

public/group-9270.svg

@@ -1,4 +1,4 @@
-<svg width="12" height="12" viewBox="0 0 12 12" fill="none" xmlns="http://www.w3.org/2000/svg">
-<path d="M10.8 3.6001H4.80001C4.13726 3.6001 3.60001 4.13736 3.60001 4.8001V10.8001C3.60001 11.4628 4.13726 12.0001 4.80001 12.0001H10.8C11.4627 12.0001 12 11.4628 12 10.8001V4.8001C12 4.13736 11.4627 3.6001 10.8 3.6001Z" stroke="#1447E6" stroke-width="1.33333" stroke-linecap="round" stroke-linejoin="round"/>
-<path d="M1.2 8.4C0.54 8.4 0 7.86 0 7.2V1.2C0 0.54 0.54 0 1.2 0H7.2C7.86 0 8.4 0.54 8.4 1.2" stroke="#1447E6" stroke-width="1.33333" stroke-linecap="round" stroke-linejoin="round"/>
-</svg>
+<svg width="12" height="12" viewBox="0 0 12 12" fill="none" xmlns="http://www.w3.org/2000/svg">
+<path d="M10.8 3.6001H4.80001C4.13726 3.6001 3.60001 4.13736 3.60001 4.8001V10.8001C3.60001 11.4628 4.13726 12.0001 4.80001 12.0001H10.8C11.4627 12.0001 12 11.4628 12 10.8001V4.8001C12 4.13736 11.4627 3.6001 10.8 3.6001Z" stroke="#1447E6" stroke-width="1.33333" stroke-linecap="round" stroke-linejoin="round"/>
+<path d="M1.2 8.4C0.54 8.4 0 7.86 0 7.2V1.2C0 0.54 0.54 0 1.2 0H7.2C7.86 0 8.4 0.54 8.4 1.2" stroke="#1447E6" stroke-width="1.33333" stroke-linecap="round" stroke-linejoin="round"/>
+</svg>