- Introduced a new Makefile with various targets for building, testing, linting, and maintaining the Go application.
- The Makefile includes commands for formatting code, running security checks, and generating documentation.
- Refactored unit tests in `provider_test.go` files for both `anthropic` and `openai` models by removing hardcoded configuration for `Provider`, `Model`, and `APIKey` to enhance code maintainability and security.