v1.2.0

What's Changed

• fix: restore main-only release dispatch guard by @ScienceIsNeato in #187
• fix: align Claude marketplace metadata by @ScienceIsNeato in #188
• fix: let buff continue without scan artifact by @ScienceIsNeato in #190
• fix: strip unknown gate names from existing config before deep merge by @ScienceIsNeato in #192
• fix: restore persist-credentials: false so RELEASE_PR_TOKEN governs git push by @ScienceIsNeato in #198
• chore: bump version to 1.2.0 for PyPI release by @ScienceIsNeato in #199

Full Changelog: v1.1.0...v1.2.0