feat: add item images, product detail page, and gallery support in catalog

- 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

santehray/settings.py

@@ -272,6 +272,8 @@ USE_TZ = True
 # https://docs.djangoproject.com/en/5.2/howto/static-files/
 
 STATIC_URL = '/static/'
+MEDIA_URL = '/media/'
+MEDIA_ROOT = BASE_DIR / 'media'
 
 # Additional locations of static files
 STATICFILES_DIRS = [

santehray/urls.py

@@ -14,6 +14,8 @@ Including another URLconf
     1. Import the include() function: from django.urls import include, path
     2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
 """
+from django.conf import settings
+from django.conf.urls.static import static
 from django.contrib import admin
 from django.urls import path, include
 
@@ -27,3 +29,6 @@ urlpatterns = [
     path('users/', include('users.urls')),
     path('admin/', admin.site.urls),
 ]
+
+if settings.DEBUG:
+    urlpatterns += static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)