docs: update README with platform overview and console details, add related images

Author: Anonymous Committer

README.md

@@ -11,7 +11,17 @@
 
 Official Python SDK for accessing [Just One API](https://justoneapi.com/en?utm_source=github.com&utm_medium=referral&utm_campaign=justoneapi_justoneapi_python&utm_content=repo_readme) - a unified data service platform that provides structured data from social media, e-commerce, and content platforms.
 
-Supported platforms include Taobao & Tmall, Xiaohongshu, Xiaohongshu Pugongying, Douyin, Douyin Xingtu, Kuaishou, Weibo, Bilibili, JD, WeChat, Douban, TikTok, TikTok Shop, Youku, Instagram, YouTube, Reddit, Toutiao, Zhihu, Amazon, Facebook, X (Twitter), Beike, IMDb, and more. To explore the full API catalog, visit the [official website]([https://justoneapi.com](https://justoneapi.com/en?utm_source=github.com&utm_medium=referral&utm_campaign=justoneapi_justoneapi_python&utm_content=repo_readme)).
+Supported platforms include Taobao & Tmall, Xiaohongshu, Xiaohongshu Pugongying, Douyin, Douyin Xingtu, Kuaishou, Weibo, Bilibili, JD, WeChat, Douban, TikTok, TikTok Shop, Youku, Instagram, YouTube, Reddit, Toutiao, Zhihu, Amazon, Facebook, X (Twitter), Beike, IMDb, and more. To explore the full API catalog, visit the [official website](https://justoneapi.com/en?utm_source=github.com&utm_medium=referral&utm_campaign=justoneapi_justoneapi_python&utm_content=repo_readme).
+
+## Platform Overview
+
+The documentation center helps you browse endpoint health, versioned API paths, request parameters, and platform-specific usage notes.
+
+![Just One API documentation overview](docs/images/readme/api-docs-en.jpg)
+
+The console provides API token management, balance visibility, request logs, usage trends, and spending analytics.
+
+![Just One API console overview](docs/images/readme/console-en.jpg)
 
 ## Installation
 

README.zh-CN.md

@@ -11,6 +11,16 @@ Just One API 是一个统一的数据服务平台，提供来自社交媒体、
 
 支持的平台包括淘宝、天猫、小红书、小红书蒲公英、抖音、抖音星图、快手、微博、哔哩哔哩、京东、微信、豆瓣、TikTok、TikTok Shop、优酷、Instagram、YouTube、Reddit、头条、知乎、亚马逊、Facebook、X(Twitter)、贝壳、IMDb 等接口。想了解更多，可以访问[官网](https://justoneapi.com/zh/?utm_source=github.com&utm_medium=referral&utm_campaign=justoneapi_justoneapi_python&utm_content=repo_readme)。
 
+## 系统概览
+
+文档中心支持查看接口健康状态、版本化 API 路径、请求参数以及各平台的使用提示。
+
+![Just One API 文档中心界面](docs/images/readme/api-docs-zh.jpg)
+
+控制台提供 API 令牌管理、余额展示、接口调用记录、调用量趋势和消费金额分析。
+
+![Just One API 控制台概览](docs/images/readme/console-zh.jpg)
+
 ## 安装
 
 ```bash