## Description
Exports `getSiblingData`, `getDataByPath`, `reduceFieldsToValues`, and
`unflatten` from `payload`. These utilities were previously accessible
using direct import paths from `@payloadcms/ui`—but this is no longer
advised since moving to a pre-bundled UI library pattern. Instead of
simply exporting these from the `@payloadcms/ui` package, these exports
have been moved to Payload itself to provision for use outside of React
environments.
This is considered a breaking change. If you were previously importing
any of these utilities, the imports paths have changed as follows:
Old:
```ts
import { getSiblingData, getDataByPath, reduceFieldsToValues } from '@payloadcms/ui/forms/Form'
import { unflatten } from '@payloadcms/ui/utilities'
```
New:
```ts
import { getSiblingData, getDataByPath, reduceFieldsToValues, unflatten } from 'payload/shared'
```
The `is-buffer` dependency was also removed in this PR.
- [x] I have read and understand the
[CONTRIBUTING.md](https://github.com/payloadcms/payload/blob/main/CONTRIBUTING.md)
document in this repository.
## Type of change
- [x] Bug fix (non-breaking change which fixes an issue)
## Checklist:
- [x] Existing test suite passes locally with my changes
0a2ecf8a4a