- **docker-compose.yml**
- Added Redis service configuration to support token storage.
- Set up health checks and volume for Redis persistence.
- Configured VRCAuthProxy service to depend on Redis.
- **HttpClientCookieContainer.cs**
- Added `Username` property to support user-specific token management.
- **Program.cs**
- Integrated Redis for storing and retrieving authentication tokens.
- Updated login and token rotation logic to utilize Redis.
- Improved async/await usage for better reliability.
- **VRCAuthProxy.csproj**
- Added `StackExchange.Redis` package for Redis connectivity.
- Corrected `Otp.NET` package reference.
- **API.cs**
- Updated `TotpVerifyResponse` and `User` classes to be nullable-aware.
- **RedisService.cs**
- Implemented Redis service for managing authentication tokens.
- Added methods for saving, retrieving, and deleting tokens.
