No está permitido reescribir una ruta estática.

ForbiddenRewrite: You tried to rewrite the on-demand route ‘FROM’ with the static route ‘TO’, when using the ‘server’ output.

The static route ‘TO’ is rendered by the component ‘COMPONENT’, which is marked as prerendered. This is a forbidden operation because during the build, the component ‘COMPONENT’ is compiled to an HTML file, which can’t be retrieved at runtime by Astro.

¿Qué salió mal?

Astro.rewrite() no puede ser usado para reescribir una ruta de servidor con una ruta estática cuando se utiliza la salida "server".