1. Get both the better auth session tokens from appliations/cookies in .env
<img width="852" height="316" alt="image" src="https://github.com/user-attachments/assets/0177c496-103c-4111-8a80-089d1f4a6f94" />
2. Enter the email you wish to send to in .env
3. `cd packages/testing`
3. run `npm test:e2e:headed`
thats it tbh
https://github.com/user-attachments/assets/b703e78c-2373-40a2-b431-f9ba53d5d871
<!-- This is an auto-generated description by cubic. -->
---
## Summary by cubic
Added Playwright end-to-end tests for the mail inbox flow, including authentication setup and email send/reply actions.
- **New Features**
- Added Playwright config, test scripts, and environment variables for E2E testing.
- Implemented tests to sign in, send an email, and reply within the same session.
<!-- End of auto-generated description by cubic. -->
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
## Summary by CodeRabbit
* **New Features**
* Introduced a comprehensive testing package with support for unit, UI, and end-to-end tests.
* Added Playwright-based authentication setup and mail inbox end-to-end test scripts.
* Provided a dedicated test configuration and TypeScript setup for robust test execution.
* **Chores**
* Updated environment variable examples to support Playwright testing.
* Enhanced main project scripts to facilitate various testing modes.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
