feat(prerequisite): return disabled variation if prerequisite not sat…

…isfied (#22)

Co-authored-by: Feng Shang <[email protected]>

🐛 fix: repo map concurrency issue (#21)

Merge remote-tracking branch 'origin/fix_repo_map_concurrency_issues'…

… into fix_repo_map_concurrency_issues

🐛 fix: panic caused crash (#20)

🐛 fix: User attribute is empty, it will cause the conditional match t…

…o fail (#18)

* 🐛 fix: User attribute is empty, it will cause the conditional match to fail

✨feat: support debug event track (#15)

✨feat: Support prerequisite (#13)

* ✨feat: Support prerequisite
---------

Co-authored-by: dengfeige <[email protected]>

✨ fix: fix track func visibility

✨ chore: update module to v2

feat: Initialization failure does not return `err`