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> [!IMPORTANT]
> Fixes ESM import issue by adding a plugin for implicit `index.js` and
renames interface files for consistency.
>
> - **Behavior**:
> - Adds `fixImportExtensions` plugin in `configs/tsup/js-library.ts` to
handle ESM imports with implicit `index.js`.
> - **Renames**:
> - Renames `adminInterface.ts` to `admin-interface.ts` and updates
imports in `index.ts` and `admin-app-impl.ts`.
> - Renames `clientInterface.ts` to `client-interface.ts` and updates
imports in `server-interface.ts`.
> - Renames `serverInterface.ts` to `server-interface.ts` and updates
imports in `adminInterface.ts`.
>
> <sup>This description was created by </sup>[<img alt="Ellipsis"
src="https://img.shields.io/badge/Ellipsis-blue?color=175173">](https://www.ellipsis.dev?ref=stack-auth%2Fstack-auth&utm_source=github&utm_medium=referral)<sup>
for 1fcd668be4. You can
[customize](https://app.ellipsis.dev/stack-auth/settings/summaries) this
summary. It will automatically update as commits are pushed.</sup>
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---------
Co-authored-by: ellipsis-dev[bot] <65095814+ellipsis-dev[bot]@users.noreply.github.com>
Co-authored-by: Konsti Wohlwend <n2d4xc@gmail.com>
