add:deploy stuff

docker-compose.yml

@@ -0,0 +1,35 @@
+services:
+  backend:
+    build:
+      context: ./backend
+    ports:
+      - "4500:4500"
+    env_file:
+      - ./backend/.env
+    environment:
+      # These override anything in .env so they are always correct for Docker
+      NODE_ENV: production
+      HOST: "0.0.0.0"
+      DB_PATH: /app/data/app.db
+    volumes:
+      - db_data:/app/data
+    restart: unless-stopped
+
+  frontend:
+    build:
+      context: ./frontend
+      args:
+        # VITE_API_URL is read from frontend/.env and baked into the bundle
+        # at build time by Vite. It must be the URL the browser uses to reach
+        # the backend — not an internal Docker hostname.
+        VITE_API_URL: ${VITE_API_URL}
+    env_file:
+      - ./frontend/.env
+    ports:
+      - "4501:4501"
+    depends_on:
+      - backend
+    restart: unless-stopped
+
+volumes:
+  db_data: