{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "type": "object",
  "description": "离线兜底版本清单：联网查询可安装版本列表失败时的替代数据，消除「空列表 + 无限重试」。各字段条目形状与对应实时接口的最终返回值完全同构，前端无需区分解析",
  "required": [
    "generatedAt",
    "node",
    "python",
    "pkgManagers"
  ],
  "properties": {
    "generatedAt": {
      "type": "string",
      "description": "快照生成时间（ISO 8601），用于展示「离线列表可能不是最新」的提示"
    },
    "node": {
      "type": "array",
      "description": "Node.js 版本条目快照（nodejs.org/dist/index.json 元素子集，含 version/date/lts/npm 等字段）",
      "items": {
        "type": "object",
        "required": [
          "version"
        ],
        "properties": {
          "version": {
            "type": "string",
            "description": "版本号（带 v 前缀，如 \"v24.18.0\"）"
          }
        },
        "additionalProperties": true
      }
    },
    "python": {
      "type": "array",
      "description": "Python 发行版条目快照（与 `hatch python show` 解析结果同构）",
      "items": {
        "type": "object",
        "required": [
          "name",
          "version"
        ],
        "properties": {
          "name": {
            "type": "string",
            "description": "Hatch distribution 名（如 \"3.13\"、\"pypy3.11\"）"
          },
          "version": {
            "type": "string",
            "description": "精确版本号（如 \"3.13.9\"）"
          }
        },
        "additionalProperties": false
      }
    },
    "pkgManagers": {
      "type": "object",
      "description": "包管理器 release 条目快照（与 listAvailablePkgManagers 最终返回形状一致：已过滤预发布、yarn 已归一化 tag_name）",
      "required": [
        "npm",
        "pnpm",
        "yarn"
      ],
      "properties": {
        "npm": {
          "type": "array",
          "description": "npm 的正式版本条目",
          "items": {
            "type": "object",
            "required": [
              "tag_name"
            ],
            "properties": {
              "tag_name": {
                "type": "string",
                "description": "版本 tag（如 \"v11.18.0\"）"
              },
              "created_at": {
                "type": "string",
                "description": "发布时间（ISO 8601）"
              }
            },
            "additionalProperties": true
          }
        },
        "pnpm": {
          "type": "array",
          "description": "pnpm 的正式版本条目",
          "items": {
            "type": "object",
            "required": [
              "tag_name"
            ],
            "properties": {
              "tag_name": {
                "type": "string",
                "description": "版本 tag（如 \"v10.12.1\"）"
              },
              "created_at": {
                "type": "string",
                "description": "发布时间（ISO 8601）"
              }
            },
            "additionalProperties": true
          }
        },
        "yarn": {
          "type": "array",
          "description": "yarn (berry) 的正式版本条目",
          "items": {
            "type": "object",
            "required": [
              "tag_name"
            ],
            "properties": {
              "tag_name": {
                "type": "string",
                "description": "版本 tag（如 \"v4.17.0\"，已从 name 字段归一化）"
              },
              "created_at": {
                "type": "string",
                "description": "发布时间（ISO 8601）"
              }
            },
            "additionalProperties": true
          }
        }
      },
      "additionalProperties": false
    }
  },
  "additionalProperties": false
}