fix: [FL-124][修复Docker构建npm ci失败问题]

- 修改docker-compose配置，将web服务构建上下文从web目录改为项目根目录
- 调整Dockerfile文件路径引用，适配新的构建上下文
- 将基础镜像从node:22-alpine改为node:22-slim，解决lightningcss在musl环境的兼容性问题
- 修改用户创建命令，适配Debian系统（从alpine的addgroup/adduser改为groupadd/useradd）

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Co-authored-by: multica-agent <github@multica.ai>

deploy/dev-deploy/compose.yml

@@ -192,8 +192,8 @@ services:
 
   web:
     build:
-      context: ../../web
-      dockerfile: Dockerfile
+      context: ../..
+      dockerfile: web/Dockerfile
       args:
         NODE_BASE_IMAGE: ${NODE_BASE_IMAGE}
         NEXT_PUBLIC_API_BASE_URL: ${NEXT_PUBLIC_API_BASE_URL}