fix: establish version 5.8.6 and add version sync automation

- Set version to 5.8.6 in pyproject.toml to match config.py
- Add automatic version sync script for GitHub Actions
- Configure semantic-release for proper version tracking
- Ensure __updated__ field auto-updates with each release

pyproject.toml

@@ -87,6 +87,9 @@ ignore = [
 [tool.semantic_release]
 version_toml = ["pyproject.toml:project.version"]
 branch = "main"
+version_source = "tag"
+version_pattern = "v(?P<major>\d+)\.(?P<minor>\d+)\.(?P<patch>\d+)"
+major_on_zero = false
 build_command = "python -m pip install --upgrade build && python -m build"
 dist_path = "dist/"
 upload_to_vcs_release = true