Add server docker file and related action tests

server/Dockerfile

@@ -0,0 +1,20 @@
+# Use the official Node.js image as the base image
+FROM node:20
+
+# Set the working directory inside the container
+WORKDIR /server
+
+# Copy package.json and package-lock.json (if available) to the working directory
+COPY package*.json ./
+
+# Install dependencies
+RUN npm install
+
+# Copy the rest of the application code to the working directory
+COPY . .
+
+# Expose the port on which your Node.js application will run
+EXPOSE 3000
+
+# Command to run the Node.js application
+CMD ["node", "server.js"]