Uploading scan/photo of table of contents to book page

### Feature Request

Dear OpenLibrary developers,

For undigitized books specifically, it would be great if it were possible to upload pictures of the table of contents.

For example, here are some pics of an undigitized, rare book's table of contents I found on an online marketplace that I think should be uploaded to and viewable on that book's OpenLibrary page (https://openlibrary.org/books/OL5742973M/La_bibbia_del_Forte_dei_Marmi.):

I appreciate you considering my suggestion.

### Breakdown

Implementation Details (for maintainers)

#### Related files

Refer to [this map of common Endpoints](https://docs.openlibrary.org/developers/backend/endpoints.html):
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#### Requirements Checklist
Checklist of requirements that need to be satisfied in order for this issue to be closed:
* [ ]

#### Stakeholders

*

#### Instructions for Contributors

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Review the common Endpoints map linked in the issue and the referenced OpenLibrary book page to identify the upload and display entry points. Define the supported image workflow, permissions, storage, and completion checks with maintainers; the issue currently leaves its requirements checklist and related files empty.

Written by the indexing model from the issue text.