[Feature Request] There is need html render for radio option

### Existing Component
是

### Component Name
mt-radio

### Description
when i use the mt-radio component，i have a option like 10^9 ,i try to use the 10₉,but it doesn't work, so i think there should be a function we can use to render html in option configrations.

Start by locating the mt-radio component and its option configuration handling. Confirm how option labels are currently rendered, then verify that an option containing 10₉ displays the intended formatted result without breaking ordinary radio labels.

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