Patrons would like to edit their loan history

### Feature Request

## Problem / Opportunity

Patrons frequently ask to edit their loan history. This is currently not possible.

It's a frequent patron request.

Solved when patrons can edit their loan history.
## Proposal

### Breakdown

Implementation Details (for maintainers)

#### Related files

Refer to [this map of common Endpoints](https://docs.openlibrary.org/developers/backend/endpoints.html):
*

#### Requirements Checklist
Checklist of requirements that need to be satisfied in order for this issue to be closed:
* [ ]

#### Stakeholders

*

#### Instructions for Contributors

* **Before** [creating a new branch](https://docs.openlibrary.org/developers/tools/git.html#making-changes-and-creating-a-pull-request) or pushing up changes to a PR, please first [run these commands](https://docs.openlibrary.org/developers/tools/git.html#working-on-your-branch) to ensure your repository is up to date, as the pre-commit bot may add commits to your PRs upstream.

The issue names no related files, tests, or specific implementation proposal. Start with the linked map of common Endpoints and identify where patron loan history is exposed; define the editing workflow, requirements, and verification criteria before implementation.

Written by the indexing model from the issue text.