feat: complete Changan digital manuals web application with mobile layout fix

Dockerfile

@@ -0,0 +1,24 @@
+# ============================================================
+# Stage 1: Build
+# ============================================================
+FROM node:20-alpine AS build
+
+WORKDIR /app
+
+COPY package.json package-lock.json ./
+RUN npm ci
+
+COPY . .
+RUN npm run build
+
+# ============================================================
+# Stage 2: Production Nginx Server
+# ============================================================
+FROM nginx:1.27-alpine
+
+RUN rm -f /etc/nginx/conf.d/default.conf
+COPY nginx.conf /etc/nginx/conf.d/
+COPY --from=build /app/dist /usr/share/nginx/html
+
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]