project structure, build system & git hooks.

Main new thing for the release

• Added native -v flag using embedded version info

Internal code structure changes

• Moved all non-main Go files into internal/ for cleaner separation
• Introduced Makefile with multi-arch support (amd64, arm64, arm)
• Embedded version metadata (git tag, commit, build date) via ldflags
• Updated GitHub Actions to use Makefile for builds and packaging
• Updated README.md with new build instructions and make targets
• Added .githooks to run go fmt before commit.

This sets up FancyLock for clean CI builds, multi-platform releases (thought we still only builds amd64 for now), and future expansion 🎉

(HAPPY HAKKR NOISES)