{"success":true,"data":{"message":"Dokkai API Service","version":"1.2.0","defaultVersion":"v1","availableVersions":["v1","v2"],"currentVersion":{"stable":"v1","preview":"v2"},"endpoints":["GET /api/v1 - v1版本API信息","GET /api/articles - 获取文章列表 (默认v1)","GET /api/articles/{id} - 获取文章详情 (默认v1)","GET /api/articles/{id}/levels/{level} - 获取特定级别数据 (默认v1)","GET /api/categories - 获取分类列表 (默认v1)","GET /api/categories/popular - 获取流行分类 (默认v1)","GET /api/tags - 获取标签列表 (默认v1)","GET /api/tags/popular - 获取流行标签 (默认v1)","GET /api/stats - 获取完整统计信息 (默认v1)","GET /api/stats/categories - 获取分类统计 (默认v1)","GET /api/stats/tags - 获取标签统计 (默认v1)","GET /api/search?q={query} - 搜索文章 (默认v1)","GET /api/v2 - v2版本API信息 (预览版)","POST /api/v2/users/guest - 创建访客用户 (Mock)","GET /api/v2/multimedia/articles/{id}/audio - 音频资源 (Mock)","GET /api/v2/analytics/users/{id}/analytics - 学习分析 (Mock)","GET /health - 健康检查"],"notes":{"v1":"Stable version with full functionality","v2":"Preview version with mock data for future features","migration":"V1 remains fully supported, V2 is for testing and feedback"}},"timestamp":"2026-10-21T16:50:56.815Z"}