- Added `ItemImage` model with migration for image handling and metadata
- Implemented product gallery in `detail.html` with thumbnails for additional images
- Updated `Item` model to include `primary_image` property for gallery logic
- Enhanced `catalog/index.html` to support item thumbnails
- Updated `catalog.css` for responsive gallery and item list styling
- Extended catalog views to prefetch images for efficient queries
- Added comprehensive tests for catalog and detail views
- Configured Django to serve media files in development
- Updated admin with inline support for managing `ItemImage` entities
- Created `side-bar.html` and `item-list.html` fragments for catalog page layout
- Updated `catalog/index.html` to include sidebar and item list templates
- Added styles for catalog layout in `catalog.css`
- Enabled `DEBUG=True` in settings for local development
- Adjusted CSS in shipping and services for consistent spacing
