Release 0.3.0

[0.3.0] - 2026-01-28

Added

• Markdown support in Sphinx documentation via myst-parser
• Test initialization example for SDK validation
• Production credentials in .env file for testing

Fixed

• Class name corrected from SteadastClient to SteadfastClient throughout codebase
• Sphinx documentation build warnings resolved
• GitHub Actions artifact upload action updated to v4
• Badge URLs fixed to use correct GitHub Actions workflow paths

Changed

• Documentation build no longer treats warnings as errors
• Removed non-existent _static path from Sphinx configuration