Add a docker build step.

docker-compose.yml

@@ -0,0 +1,36 @@
+version: '3.8'
+
+services:
+  backend:
+    build:
+      context: ./backend
+      dockerfile: Dockerfile
+    ports:
+      - "3000:3000"
+    environment:
+      - DATABASE_URL=sqlite:///app/data/local.db
+      - RUST_LOG=info
+    volumes:
+      - backend_data:/app/data
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost:3000/health"]
+      interval: 30s
+      timeout: 10s
+      retries: 3
+      start_period: 40s
+
+  frontend:
+    build:
+      context: ./frontend
+      dockerfile: Dockerfile
+    ports:
+      - "5173:5173"
+    depends_on:
+      backend:
+        condition: service_healthy
+    environment:
+      - VITE_API_URL=http://localhost:3000
+      - API_URL=http://backend:3000
+
+volumes:
+  backend_data: