release(main): 集成 nginx 同域入口恢复

nginx/Dockerfile

@@ -0,0 +1,14 @@
+FROM node:20-alpine AS frontend-build
+
+WORKDIR /app
+
+COPY frontend/package*.json ./
+RUN npm ci
+
+COPY frontend/ ./
+RUN npm run build
+
+FROM nginx:1.27-alpine
+
+COPY nginx/nginx.conf /etc/nginx/nginx.conf
+COPY --from=frontend-build /app/dist /usr/share/nginx/html