v0.0.1-beta.3

What's Changed

• feat: reject .git path segments in dir/name/subdir, fix init empty-dir error by @min0625 in #38
• refactor: extract vendordir.FindExtras as single source of truth by @min0625 in #39
• feat: add Codecov coverage workflow and expand unit tests by @min0625 in #40
• feat: reject .graft-tmp dep names, clear error for non-dir vendor path by @min0625 in #41
• feat: reserve .graft- prefix for dep names, match case-insensitively by @min0625 in #42
• docs: rebrand heading to Graft with emoji in READMEs by @min0625 in #43

Full Changelog: v0.0.1-beta.2...v0.0.1-beta.3