nochmal, nun alles docker-zeugs dabei

backend/Dockerfile

@@ -0,0 +1,18 @@
+FROM node:20-alpine
+
+WORKDIR /app
+
+# Copy package files
+COPY package*.json ./
+
+# Install dependencies
+RUN npm ci
+
+# Copy source code
+COPY . .
+
+# Expose the application port
+EXPOSE 3001
+
+# Start the application
+CMD ["npm", "run", "dev"]