[DX] Automatically generate schemas from component props in `content.config.ts`

[maximepvrt]

Opening this issue after a quick discussion with @larbish on Discord.

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💭 Context

In a project like nuxt-ui-pro/landing, we define content schemas using zod, like this : https://github.com/nuxt-ui-pro/landing/blob/main/content.config.ts

This type of schema is great for validating content and enabling autocompletion.
However, it quickly becomes redundant with the component prop definitions themselves (UPageHero, UPageFeatures, etc.).

✨ Idea

It would be great to allow an API like:

sections: z.array(z.component('UPageFeatures'))

Where the schema is automatically generated based on the component props.

This would eliminate the need to manually maintain Zod schemas for each component.