docs(blueprint): fix Cocos extension installation instructions

- Change from manual copy to zip import via Extension Manager
- Add first-launch dependency installation flow description
- Plugin auto-detects and prompts to install @esengine/blueprint

docs/src/content/docs/en/modules/blueprint/cocos-editor.md

@@ -7,37 +7,26 @@ This document explains how to install and use the blueprint visual scripting edi
 
 ## Installation
 
-### 1. Copy Extension to Project
+### 1. Download Extension
 
-Copy the `cocos-node-editor` extension to your Cocos Creator project's `extensions` directory:
+Download the `cocos-node-editor.zip` extension package from the release page.
 
-```
+### 2. Import Extension
-your-project/
-├── assets/
-├── extensions/
-│   └── cocos-node-editor/    # Blueprint editor extension
-└── ...
-```
-
-### 2. Install Dependencies
-
-Install dependencies in the extension directory:
-
-```bash
-cd extensions/cocos-node-editor
-npm install
-```
-
-### 3. Enable Extension
 
 1. Open Cocos Creator
 2. Go to **Extensions → Extension Manager**
-3. Find `cocos-node-editor` and enable it
+3. Click the **Import Extension** button
+4. Select the downloaded `cocos-node-editor.zip` file
+5. Enable the extension after importing
 
 ## Opening the Blueprint Editor
 
 Open the blueprint editor panel via menu **Panel → Node Editor**.
 
+### First Launch - Install Dependencies
+
+When opening the panel for the first time, the plugin will check if `@esengine/blueprint` is installed in your project. If not installed, it will display **"Missing required dependencies"** prompt. Click the **"Install Dependencies"** button to install automatically.
+
 ## Editor Interface
 
 ### Toolbar

docs/src/content/docs/modules/blueprint/cocos-editor.md

@@ -7,37 +7,26 @@ description: "在 Cocos Creator 中使用蓝图可视化脚本系统"
 
 ## 安装扩展
 
-### 1. 复制扩展到项目
+### 1. 下载扩展
 
-将 `cocos-node-editor` 扩展复制到你的 Cocos Creator 项目的 `extensions` 目录：
+从发布页面下载 `cocos-node-editor.zip` 扩展包。
 
-```
+### 2. 导入扩展
-your-project/
-├── assets/
-├── extensions/
-│   └── cocos-node-editor/    # 蓝图编辑器扩展
-└── ...
-```
-
-### 2. 安装依赖
-
-在扩展目录中安装依赖：
-
-```bash
-cd extensions/cocos-node-editor
-npm install
-```
-
-### 3. 启用扩展
 
 1. 打开 Cocos Creator
 2. 进入 **扩展 → 扩展管理器**
-3. 找到 `cocos-node-editor` 并启用
+3. 点击 **导入扩展包** 按钮
+4. 选择下载的 `cocos-node-editor.zip` 文件
+5. 导入后启用扩展
 
 ## 打开蓝图编辑器
 
 通过菜单 **面板 → Node Editor** 打开蓝图编辑器面板。
 
+### 首次打开 - 安装依赖
+
+首次打开面板时，插件会检测项目中是否安装了 `@esengine/blueprint` 依赖包。如果未安装，会显示 **"缺少必要的依赖包"** 提示，点击 **"安装依赖"** 按钮即可自动安装。
+
 ## 编辑器界面
 
 ### 工具栏