<!--
Make sure you've read the CONTRIBUTING.md guidelines:
https://github.com/stack-auth/stack-auth/blob/dev/CONTRIBUTING.md
-->
<!-- ELLIPSIS_HIDDEN -->
----
> [!IMPORTANT]
> Add secure Neon connection string handling and update connection
routes with new APIs and tests.
>
> - **Features**:
> - Add Neon integration APIs in `route.tsx` for project provisioning
and branch connection string registration.
> - Securely store Neon connection strings in a data vault in
`prisma-client.tsx` and `seed.ts`.
> - Automatically run migrations on provision/update in `route.tsx`.
> - **Refactor**:
> - Change schema resolution to asynchronous in `crud.tsx` and
`metrics/route.tsx`.
> - **Chores**:
> - Add backend environment variables for various services in
`package.json`.
> - Add new backend dependency `@stackframe/stack` in `package.json`.
> - **Tests**:
> - Add end-to-end tests for Neon provisioning and updates in
`provision.test.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 4cd96a74ff. You can
[customize](https://app.ellipsis.dev/stack-auth/settings/summaries) this
summary. It will automatically update as commits are pushed.</sup>
----
<!-- ELLIPSIS_HIDDEN -->
<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit
- New Features
- Added Neon integration APIs to provision projects and register branch
connection strings.
- Securely store Neon connection strings in the data vault and run
migrations automatically on provision/update.
- Refactor
- Switched schema resolution to asynchronous calls across sessions,
users, and internal metrics for improved reliability.
- Chores
- Introduced comprehensive backend environment variables for auth,
email, storage, webhooks, telemetry, and payments.
- Added a new backend dependency for stack integration.
- Tests
- Expanded end-to-end coverage for Neon provisioning, updates,
validation, and vault-based decryption.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
---------
Co-authored-by: Konsti Wohlwend <n2d4xc@gmail.com>
