feat: Add Dockerfile for production deployment

Dockerfile

@@ -0,0 +1,41 @@
+# ---- Stage 1: Build the React App ----
+# Use an official Node.js image as the base for building
+FROM node:20-alpine AS build
+
+# Set the working directory inside the container
+WORKDIR /app
+
+# Copy package.json and package-lock.json to leverage Docker layer caching
+COPY package*.json ./
+
+# Install all dependencies
+RUN npm install
+
+# Copy the rest of the application source code
+COPY . .
+
+# Build the application for production
+# This runs "vite build" and creates the /app/dist folder
+RUN npm run build
+
+# ---- Stage 2: Serve the App in a Production Environment ----
+# Use a smaller, secure Node.js image for the final container
+FROM node:20-alpine
+
+WORKDIR /app
+
+# We only need package.json to install the 'serve' package
+COPY package*.json ./
+
+# Install ONLY production dependencies (in this case, 'serve')
+RUN npm install --omit=dev
+
+# Copy the built static files from the 'build' stage
+COPY --from=build /app/dist ./dist
+
+# Expose the port that 'serve' will run on
+EXPOSE 3000
+
+# The command to start the web server
+# This runs "serve -s dist"
+CMD [ "npm", "start" ]