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

deploy/food.service

@@ -0,0 +1,22 @@
+[Unit]
+Description=Food App (Meal Planning API)
+After=network.target
+
+[Service]
+Type=notify
+User=openclaw
+Group=openclaw
+WorkingDirectory=/var/lib/food
+Environment="PATH=/var/lib/food/venv/bin:/usr/bin"
+Environment="DJANGO_SETTINGS_MODULE=food_project.settings"
+ExecStart=/var/lib/food/venv/bin/gunicorn food_project.wsgi:application \
+    --bind 127.0.0.1:8042 \
+    --workers 2 \
+    --timeout 30 \
+    --access-logfile - \
+    --error-logfile -
+Restart=on-failure
+RestartSec=5
+
+[Install]
+WantedBy=multi-user.target