docs(readme): Update online demo and deployment sections

- Remove redundant online demo section from both README files
- Simplify Vercel deployment introduction
- Maintain consistent messaging across English and Chinese READMEs
- Remove audit report export section for cleaner documentation
- Streamline quick start and deployment instructions

README.md

@@ -59,6 +59,10 @@
 
 ### 主要功能界面
 
+#### 🌐 在线演示
+
+无需部署，直接访问在线演示（数据存储在浏览器本地，支持所有核心功能）：**[https://xcodereviewer-preview.vercel.app](https://xcodereviewer-preview.vercel.app)**
+
 #### 智能仪表盘
 ![智能仪表盘](public/images/example1.png)
 *实时展示项目统计、质量趋势和系统性能，提供全面的代码审计概览*
@@ -71,24 +75,12 @@
 ![项目管理](public/images/example3.png)
 *集成 GitHub/GitLab 仓库，支持多语言项目审计和批量代码分析*
 
-#### 审计报告导出
-![审计报告示例](public/images/审计报告示例.png)
-*支持导出 JSON 和 PDF 格式的专业审计报告，包含完整的问题详情和修复建议*
-
 ## 🚀 快速开始
 
-### ☁️ Vercel 一键部署（最快捷）
+### ☁️ Vercel 一键部署
 
 适合快速部署和体验，无需服务器，全球 CDN 加速。
 
-#### 🌐 在线演示
-
-无需部署，直接访问在线演示：**[https://xcodereviewer-preview.vercel.app](https://xcodereviewer-preview.vercel.app)**
-
-- ✅ 开箱即用，无需配置
-- ✅ 数据存储在浏览器本地
-- ✅ 支持所有核心功能
-
 #### 方式一：一键部署按钮（推荐）⭐
 
 点击下方按钮直接部署到 Vercel：

README_EN.md

@@ -59,6 +59,10 @@ In the fast-paced world of software development, ensuring code quality is crucia
 
 ### Main Feature Interfaces
 
+#### 🌐 Online Demo
+
+No deployment needed, access the online demo directly (data stored locally in browser, all core features supported): **[https://xcodereviewer-preview.vercel.app](https://xcodereviewer-preview.vercel.app)**
+
 #### 📊 Intelligent Dashboard
 ![Intelligent Dashboard](public/images/example1.png)
 *Real-time display of project statistics, quality trends, and system performance, providing comprehensive code audit overview*
@@ -71,24 +75,12 @@ In the fast-paced world of software development, ensuring code quality is crucia
 ![Project Management](public/images/example3.png)
 *Integrated GitHub/GitLab repositories, supporting multi-language project audits and batch code analysis*
 
-#### 📄 Audit Report Export
-![Audit Report Example](public/images/审计报告示例.png)
-*Support exporting professional audit reports in JSON and PDF formats, including complete issue details and fix suggestions*
-
 ## 🚀 Quick Start
 
-### ☁️ Vercel One-Click Deployment (Fastest)
+### ☁️ Vercel One-Click Deployment
 
 Perfect for quick deployment and testing without a server, with global CDN acceleration.
 
-#### 🌐 Online Demo
-
-No deployment needed, access the online demo directly: **[https://xcodereviewer-preview.vercel.app](https://xcodereviewer-preview.vercel.app)**
-
-- ✅ Ready to use out of the box, no configuration needed
-- ✅ Data stored locally in browser
-- ✅ All core features supported
-
 #### Method 1: One-Click Deploy Button (Recommended) ⭐
 
 Click the button below to deploy directly to Vercel: