add docker files

Dockerfile

@@ -0,0 +1,28 @@
+# Use Node.js 20 Alpine as base image for smaller size
+FROM node:20-alpine
+
+# Set working directory
+WORKDIR /app
+
+# Install dependencies for node-gyp and other native modules
+RUN apk add --no-cache python3 make g++
+
+# Copy package files
+COPY package.json yarn.lock ./
+
+# Install dependencies
+RUN yarn install --frozen-lockfile
+
+# Copy source code
+COPY . .
+
+# Expose port 3000 (default React dev server port)
+EXPOSE 3000
+
+# Set environment variables for development
+ENV NODE_ENV=development
+ENV CHOKIDAR_USEPOLLING=true
+ENV WATCHPACK_POLLING=true
+
+# Start the development server
+CMD ["yarn", "start"]