v0.3.9

Highlights

• harden minimal-profile autodetection for status --check and sync --check
• add an explicit hidden marker for new minimal scaffolds
• preserve compatibility for older minimal projects with a stricter legacy fallback

Validation

• pytest: 153 passed
• ruff check + format --check: passed
• markdownlint: passed
• build + twine check: passed
• manual status/sync smoke repro: passed