refactor: simplify Dockerfile for development and add docker-compose

- Simplify Dockerfile to single-stage development setup
- Add docker-compose.yml for easier container management

Co-Authored-By: Claude <noreply@anthropic.com>

Dockerfile

@@ -1,33 +1,20 @@
-# ==================== 构建阶段 ====================
-FROM node:24-alpine AS builder
+FROM node:24-alpine
 WORKDIR /app
 
-# 配置 npm 镜像
+# 配置阿里云 npm 镜像
 RUN npm config set registry https://registry.npmmirror.com
 
-# 复制依赖文件并安装
+# 复制依赖文件
 COPY package*.json ./
-RUN npm ci
 
-# 复制源代码并构建
+# 安装所有依赖（包括 devDependencies）
+RUN npm install
+
+# 复制源代码
 COPY . .
-RUN npm run build
-
-# ==================== 运行阶段 ====================
-FROM node:24-alpine AS runner
-WORKDIR /app
-
-# 只安装服务器依赖（独立的 package.json）
-COPY server/package.json ./
-RUN npm config set registry https://registry.npmmirror.com && npm install --omit=dev
-
-# 复制构建产物
-COPY --from=builder /app/dist ./dist
-COPY --from=builder /app/server-dist ./server-dist
 
+# 暴露端口
 EXPOSE 3000
 
-ENV PORT=3000
-ENV HOST=0.0.0.0
-
-CMD ["node", "server-dist/server/index.js"]
+# 运行开发服务器
+CMD ["npm", "run", "dev", "--", "--port", "3000"]