docs: SEO 强化 — 关键词优化(README/manifest/GitHub 仓库)

- README 开头定位句融入 Obsidian 社区插件/AI 聊天助手/CodeBuddy CLI/Vault 关键词
- manifest.json description 中英双语,覆盖流式回复/@引用/图片视觉/MCP/diff 撤销等市场搜索词
- GitHub 仓库 About 描述中英双语,topics 增至 17 个(obsidian-ai/workbuddian/vault/notes)
- 版本不变(v2.1.0)

Author: jiang198012

README.en.md

@@ -14,7 +14,7 @@
 
 > **Primary audience is Chinese-speaking Obsidian users. The canonical README is in Simplified Chinese ([中文](./README.md)); this English page is a condensed entry point.**
 
-Turn your local **CodeBuddy CLI** into an AI chat agent living inside your Obsidian vault — chat, reference notes, and edit your writing without ever switching windows.
+**Workbuddian** is an **Obsidian community plugin** that turns your local **CodeBuddy CLI** into an **AI chat agent** living inside your vault — chat, reference notes with `@`, stream replies, and edit your writing without ever switching windows.
 
 > ⚠️ **Desktop only** (Windows / macOS), requires Obsidian 1.7.2+. Linux is not supported yet.
 

README.md

@@ -13,7 +13,7 @@
   <strong>简体中文</strong> | <a href="./README.en.md">English</a>
 </p>
 
-在 Obsidian 里，把本地 **CodeBuddy CLI** 变成你的 **AI 工作搭档**——不用切窗口，在笔记里直接聊天、引用、改稿。
+**Workbuddian** 是一个 **Obsidian 社区插件**，把本地 **CodeBuddy CLI** 变成你笔记里的 **AI 聊天助手**——不用切窗口，直接在 Vault 里聊天、`@` 引用笔记、流式回复、改稿。
 
 > ⚠️ **仅桌面端**（Windows / macOS），需 Obsidian 1.7.2+。Linux 暂不支持。
 

manifest.json

@@ -2,7 +2,7 @@
   "id": "workbuddian",
   "name": "Workbuddian",
   "minAppVersion": "1.7.2",
-  "description": "Chat with the local WorkBuddy/CodeBuddy CLI as an AI agent in your vault: streaming replies, screenshot vision, persistent custom instructions, @-reference any file, model/permission toolbar, slash commands, inline edit, export and search.",
+  "description": "把本地 CodeBuddy CLI 变成 Obsidian 里的 AI 聊天插件:流式回复、@引用笔记、图片视觉、MCP 管理、行级 diff 一键撤销。Chat with the local WorkBuddy/CodeBuddy CLI as an AI agent in your vault: streaming replies, screenshot vision, @-reference any file, MCP servers, inline edit, export and search.",
   "author": "jiang198012",
   "authorUrl": "https://github.com/jiang198012",
   "isDesktopOnly": true,