Refactor settings

[sudoping01]

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Pull Request

Description

This PR centralizes configuration management across the SDK by introducing a Settings class using pydantic-settings. It replaces global constant imports with a single, validated source of truth for environment-based configuration (e.g., API key, base URL, speaker IDs). This refactor improves code clarity, safety, and maintainability.

Related Issue(s)

Closes #9 (Refactor settings management)

Changes Made

• Added Settings class using pydantic.BaseSettings with environment variable validation.
• Updated auth, client, and tts modules to use Settings instead of global constants.
• Removed redundant environment variable loading and global imports.
• Added UUID-based validation for the API key in Auth.
• Made base_url an optional parameter with fallback to settings.
• Updated setup.py to ensure compatibility with pydantic-settings.

Testing

• Ran the CLI entry point: python -m cookbook.main — ✅ No runtime errors.
• Verified that API key fallback and validation logic work correctly.
• Confirmed proper loading of environment variables for all components.

Checklist

• Code follows style guidelines (ruff, isort, and optionally black).
• Tests added or updated in the cookbook module.
• Documentation updated (e.g., README.md or docs/).
• All tests pass (python -m cookbook.main).
• No linting errors (ruff check . and isort . --check-only).

Additional Notes

This refactor unifies configuration logic and simplifies dependency injection, especially useful for testing and production overrides.

Tag @sudoping01 for review. Thanks for contributing to Djelia Python SDK! ❤️🇲🇱