docs: integrate type-check default into option description

Author: chenjiahan

website/docs/en/guide/cli/check.mdx

@@ -38,14 +38,12 @@ This runs `rs lint --fix` to apply available lint fixes. If linting and any enab
 
 ### `--type-check`
 
-Enable TypeScript type checking as part of linting:
+By default, `rs check` checks only lint and formatting issues. Add `--type-check` to also check TypeScript types during linting:
 
 ```bash
 rs check --type-check
 ```
 
-Type checking is disabled by default.
-
 ### `-h, --help`
 
 Display usage and option information without running checks:

website/docs/zh/guide/cli/check.mdx

@@ -38,14 +38,12 @@ rs check --fix
 
 ### `--type-check`
 
-在 lint 过程中启用 TypeScript 类型检查：
+默认情况下，`rs check` 只检查 lint 和格式问题。添加 `--type-check` 可在 lint 过程中同时检查 TypeScript 类型：
 
 ```bash
 rs check --type-check
 ```
 
-默认不启用类型检查。
-
 ### `-h, --help`
 
 显示命令用法和选项信息，但不运行检查：