🔧 chore(docker): update working directory path

- change working directory from /app to /workspace for better environment consistency

Dockerfile

@@ -20,7 +20,7 @@ RUN pnpm config set registry https://registry.npmmirror.com/
 RUN pnpm config set @jsr:registry https://npm.jsr.io
 
 # 设置工作目录
-WORKDIR /app
+WORKDIR /workspace
 
 # 复制根目录配置文件
 COPY package.json pnpm-workspace.yaml pnpm-lock.yaml .npmrc ./