- Updated `.env.example` with new LLM configuration variables
- Modified `LiteLLMClient` to support API key and base URL from environment variables
- Enhanced client initialization to use env vars with optional parameter overrides
- Added comprehensive test case for environment variable configuration
- Expanded `.env.example` with additional environment variables for local development, including AWS credentials, database connection strings, and API keys.
- Removed the `api/.env.example` file as its contents have been consolidated into the main `.env.example`.
These changes enhance the local development setup by providing a comprehensive example of required environment variables.