Phase 4: HTMX frontend with dark palette

- 4 pages: Pantry, Recipes, Shopping List, Cook Log
- HTMX-powered: add/delete pantry items, toggle shopping, generate smart list
- Custom 13-colour palette from Lospec (dark bg, yellow accent)
- Mobile-responsive
- Whitenoise for static files in production
- All routes under /app/
- API (/api/) stays internal, frontend (/app/) for browser use

food_project/urls.py

@@ -21,4 +21,5 @@ urlpatterns = [
     path('admin/', admin.site.urls),
     path('api/', include('kitchen.urls')),
     path('api-auth/', include('rest_framework.urls')),  # browsable API login
+    path('app/', include('kitchen.urls_htmx')),  # HTMX frontend
 ]