v1.0.1

Changelog

• 9f2f310 fix: version.sh: Ensure version string has a single leading 'v'
• 625f34f fix: main: Set default version to "dev" in main.go
• 020b4e9 fix: goreleaser: Update versioning in configuration to use tag and short commit
• e804036 feat: docs: Add Codecov badge to README for coverage tracking