v0.2.4

Added

• Stateless HTTP server (midigpt[http] install extra) with end-to-end tests.
• CITATION.cff and root CONTRIBUTING.md.
• MkDocs documentation site, dark slate theme, brand styling, docs badge in README.
• Ruff + pre-commit linting setup.
• Curated CHANGELOG.md — release workflow now uses per-version sections as the GitHub Release body.
• Auto-publish GitHub Release on tag push (previously created a draft only).

Changed

• Checkpoint format migrated to safetensors (format_version: 2). The .pt packed-bundle loader still reads format_version: 1.

Fixed

• Session device mismatch on GPU inference.
• PyPI publish environment name.

v0.2.3

Full Changelog: v0.2.2...v0.2.3