Support { type: 'text', url: ... } chunks

[MaxLeiter]

Feature Description

Model providers and the AI SDK currently support two kinds of "chat chunks":

{ type: 'text', text: '....' }

and

{ type: 'image', url: ... }`

I propose a new option for downloading text attachments:

{ type: 'text', url: '' }

Use Case

This will be very helpful when building e.g. chatbots that support text attachments

Additional context

No response