docs: fix init command documentation (#894)

Author: travzhang

website/docs/en/guide/browser-testing/getting-started.mdx

@@ -10,9 +10,9 @@ import { PackageManagerTabs } from '@theme';
 
 ## Automatic initialization
 
-The quickest way is to use the `rstest init browser` command for automatic configuration:
+The quickest way is to use the `@rstest/core init browser` command for automatic configuration:
 
-<PackageManagerTabs command="rstest init browser" dlx />
+<PackageManagerTabs command="@rstest/core init browser" dlx />
 
 ### Initialization process
 
@@ -30,7 +30,7 @@ When you run the command, Rstest automatically:
 Here's an example output for a React project:
 
 ```bash
-◆ rstest init browser
+◆ @rstest/core init browser
 
   Detecting project...
   ✓ Found React 19.0.0
@@ -59,7 +59,7 @@ After initialization, follow the "Next steps" instructions in the output: instal
 In CI or other non-interactive environments, add the `--yes` flag to skip all prompts and use detected configuration:
 
 ```bash
-npx rstest init browser --yes
+npx @rstest/core init browser --yes
 ```
 
 :::

website/docs/zh/guide/browser-testing/getting-started.mdx

@@ -10,9 +10,9 @@ import { PackageManagerTabs } from '@theme';
 
 ## 自动初始化
 
-最快速的方式是使用 `rstest init browser` 命令自动完成配置：
+最快速的方式是使用 `@rstest/core init browser` 命令自动完成配置：
 
-<PackageManagerTabs command="rstest init browser" dlx />
+<PackageManagerTabs command="@rstest/core init browser" dlx />
 
 ### 初始化过程
 
@@ -30,7 +30,7 @@ import { PackageManagerTabs } from '@theme';
 以下是 React 项目的初始化输出示例：
 
 ```bash
-◆ rstest init browser
+◆ @rstest/core init browser
 
   Detecting project...
   ✓ Found React 19.0.0
@@ -59,7 +59,7 @@ import { PackageManagerTabs } from '@theme';
 在 CI 或其他非交互式环境中，可以添加 `--yes` 参数跳过所有提示，直接使用嗅探到的配置：
 
 ```bash
-npx rstest init browser --yes
+npx @rstest/core init browser --yes
 ```
 
 :::