docs: 统一双语 README 头部格式与版本线说明（目录换行、JDK 版本线修正、锚点修复）

Author: loong10k

README.md

@@ -1,25 +1,29 @@
 # opencode-java-sdk
 
-<div align="center">
-
-**Pure Java SDK (no Spring) for the OpenCode Server: HTTP REST API, SSE event stream and local CLI**
-
-![Java](https://img.shields.io/badge/Java-17-orange) ![License](https://img.shields.io/badge/license-Apache%202.0-green)
+[English](./README.md) | [简体中文](./README.zh-CN.md)
 
+Pure Java SDK (no Spring) for the OpenCode Server: HTTP REST API, SSE event stream and local CLI
 [简体中文](./README.zh-CN.md)
 
-[1. Project Overview](#1-project-overview) · [2. Features & Status](#2-features--status) · [3. Requirements & Compatibility](#3-requirements--compatibility) · [4. Architecture & Modules](#4-architecture--modules) · [5. Installation](#5-installation) · [6. Quick Start](#6-quick-start) · [7. Configuration](#7-configuration) · [8. Core Usage](#8-core-usage) · [9. Testing & Build](#9-testing--build) · [10. Versioning & Branches](#10-versioning--branches) · [11. Contributing & License](#11-contributing--license)
-
-</div>
+> **Current branch**: `feature/2.0.x`
+> **Version**: `2.0.x.x.20260630-SNAPSHOT`
+> **JDK baseline**: 8
+> **Project status**: stable (1.0.x line). Not yet published to Maven Central; artifacts are distributed via the Aliyun Maven repository and GitHub Releases.
 
----
+## Table of Contents
 
-> **Current branch**: `feature/2.0.x`<br>
-> **Version**: `2.0.x.x.20260630-SNAPSHOT`<br>
-> **JDK baseline**: 8<br>
-> **Project status**: stable (1.0.x line). Not yet published to Maven Central; artifacts are distributed via the Aliyun Maven repository and GitHub Releases.
+- [1. Project Overview](#1-project-overview)
+- [2. Features & Status](#2-features--status)
+- [3. Requirements & Compatibility](#3-requirements--compatibility)
+- [4. Architecture & Modules](#4-architecture--modules)
+- [5. Installation](#5-installation)
+- [6. Quick Start](#6-quick-start)
+- [7. Configuration](#7-configuration)
+- [8. Core Usage](#8-core-usage)
+- [9. Testing & Build](#9-testing--build)
+- [10. Versioning & Branches](#10-versioning--branches)
+- [11. Contributing & License](#11-contributing--license)
 
-<a id="1-project-overview"></a>
 ## 1. Project Overview
 
 ### 1.1 What it is

README.zh-CN.md

@@ -1,25 +1,28 @@
 # opencode-java-sdk
 
-<div align="center">
-
-**纯 Java 库（无 Spring）：通过 HTTP REST API、SSE 事件流与本地 CLI 与 OpenCode Server 交互**
-
-![Java](https://img.shields.io/badge/Java-17-orange) ![License](https://img.shields.io/badge/license-Apache%202.0-green)
-
 [English](./README.md) | [简体中文](./README.zh-CN.md)
 
-[1. 项目概述](#1-project-overview) · [2. 能力与状态](#2-features--status) · [3. 运行要求与兼容性](#3-requirements--compatibility) · [4. 架构与模块](#4-architecture--modules) · [5. 引入依赖](#5-installation) · [6. 快速开始](#6-quick-start) · [7. 配置](#7-configuration) · [8. 核心用法](#8-core-usage) · [9. 测试与构建](#9-testing--build) · [10. 版本线与分支](#10-versioning--branches) · [11. 贡献与许可证](#11-contributing--license)
+纯 Java 库（无 Spring）：通过 HTTP REST API、SSE 事件流与本地 CLI 与 OpenCode Server 交互
 
-</div>
+> **当前分支**：`feature/2.0.x`
+> **版本**：`2.0.x.x.20260630-SNAPSHOT`
+> **JDK 基线**：8
+> **项目状态**：稳定（1.0.x 线）。尚未发布 Maven Central；制品通过 Aliyun Maven 仓库与 GitHub Releases 分发。
 
----
+## 目录
 
-> **当前分支**：`feature/2.0.x`<br>
-> **版本**：`2.0.x.x.20260630-SNAPSHOT`<br>
-> **JDK 基线**：8<br>
-> **项目状态**：稳定（1.0.x 线）。尚未发布 Maven Central；制品通过 Aliyun Maven 仓库与 GitHub Releases 分发。
+- [1. 项目概述](#1-项目概述)
+- [2. 能力与状态](#2-features--status)
+- [3. 运行要求与兼容性](#3-requirements--compatibility)
+- [4. 架构与模块](#4-architecture--modules)
+- [5. 引入依赖](#5-installation)
+- [6. 快速开始](#6-quick-start)
+- [7. 配置](#7-configuration)
+- [8. 核心用法](#8-core-usage)
+- [9. 测试与构建](#9-testing--build)
+- [10. 版本线与分支](#10-versioning--branches)
+- [11. 贡献与许可证](#11-contributing--license)
 
-<a id="1-project-overview"></a>
 ## 1. 项目概述
 
 ### 1.1 是什么