[Feature Request] Filter on saved view

Description

I built myself a cli tool to send me a summary of documents in a specific saved view (I use it via cron to remind myself of documents that need to be processed).

However, there is no *"all documents for saved view 42"* filter. Instead, one has to fetch the saved view detail info (which is not really documented as far as I can tell) and re-build the query. This is not optimal, because I don't care about the exact inner working of a view, all I want is fetch documents. Also, this breaks if new filter types are added to paperless.

I propose adding a "saved_view=42" filter to the /api/documents/? endpoint, so that API clients can fetch documents without having to re-implement the saved views logic.

Other

_No response_