chore: Docker生产部署配置 + 部署脚本

frontend/Dockerfile.prod

@@ -0,0 +1,18 @@
+# ============================================================
+# 前端生产 Dockerfile — 多阶段构建：Vite 打包 → Nginx 托管
+# ============================================================
+
+# --- 阶段 1：编译 React ---
+FROM node:20-alpine AS builder
+WORKDIR /app
+COPY package.json package-lock.json ./
+RUN npm ci --production=false
+COPY . .
+RUN npx vite build
+
+# --- 阶段 2：Nginx 托管静态文件 ---
+FROM nginx:alpine
+COPY nginx.conf /etc/nginx/conf.d/default.conf
+COPY --from=builder /app/dist /usr/share/nginx/html
+EXPOSE 80
+CMD ["nginx", "-g", "daemon off;"]

frontend/nginx.conf

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+server {
+    listen 80;
+    server_name _;
+
+    root /usr/share/nginx/html;
+    index index.html;
+
+    # Gzip 压缩
+    gzip on;
+    gzip_types text/css application/javascript application/json image/svg+xml;
+    gzip_min_length 256;
+
+    # 静态文件缓存
+    location /assets/ {
+        expires 1y;
+        add_header Cache-Control "public, immutable";
+    }
+
+    # API 代理到后端
+    location /api/ {
+        proxy_pass http://backend:8000;
+        proxy_set_header Host $host;
+        proxy_set_header X-Real-IP $remote_addr;
+        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
+        proxy_set_header X-Forwarded-Proto $scheme;
+    }
+
+    # SPA 路由回退
+    location / {
+        try_files $uri $uri/ /index.html;
+    }
+}