Added docker compose + Dockerfile for deployment

Dockerfile

@@ -0,0 +1,36 @@
+# --- STAGE 1: Base build environment ---
+FROM node:lts-alpine3.23 AS base
+WORKDIR /app
+COPY package.json package-lock.json ./
+
+# Install dependencies
+RUN npm ci --legacy-peer-deps
+COPY . .
+
+# Install necessary dependencies for sharp used by next/image (for image optimization)
+RUN apk add --no-cache libc6-compat
+
+# --- STAGE 2: Environments
+# Development
+FROM base AS development
+ARG ENVIRONMENT=development
+ENV NODE_ENV=$ENVIRONMENT
+EXPOSE 3000
+CMD ["npm", "run", "dev"]
+
+# Production
+FROM base AS build
+ARG ENVIRONMENT=production
+ENV NODE_ENV=$ENVIRONMENT
+RUN npm run build
+
+#--- STAGE 3: Production runtime environment
+FROM node:lts-alpine3.23 AS production
+WORKDIR /app
+COPY --from=build /app/.next ./.next
+COPY --from=build /app/package.json ./package.json
+COPY --from=build /app/package-lock.json ./package-lock.json
+COPY --from=build /app/public ./public
+COPY --from=build /app/node_modules ./node_modules
+EXPOSE 3000
+CMD ["npm", "run", "start"]