<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **New Features**
- Added support for a new AES key for license management, improving license encryption and decryption processes.
- **Bug Fixes**
- Improved error messages and handling when activating expired or invalid licenses.
- **Refactor**
- Updated license decryption logic to use a fixed AES key instead of deriving one from the workspace ID.
- Added validation for environment variable values to prevent invalid configurations.
- **Tests**
- Enhanced license-related tests to cover new key usage and updated error messages.
- Updated environment variable validation tests with clearer error messages.
- **Chores**
- Updated environment variable handling for improved consistency.
- Set production environment variable explicitly in build configuration.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
<!-- This is an auto-generated comment: release notes by coderabbit.ai -->
## Summary by CodeRabbit
- **New Features**
- Added support for installing self-hosted team licenses via encrypted license files.
- Introduced a new "Onetime" license variant for self-hosted environments.
- Added a GraphQL mutation to upload and install license files.
- License details now display the license variant.
- **Bug Fixes**
- Improved error messages for license activation and expiration, including dynamic reasons.
- **Localization**
- Updated and improved license-related error messages for better clarity.
- **Tests**
- Added comprehensive end-to-end tests for license installation scenarios.
- **Chores**
- Enhanced environment variable handling and public key management for license verification.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->
