Merge pull request #7 from tinh-tinh/fix/ren/6-missing-export-moduie

fix: export missing module functions and add tests

Merge pull request #5 from tinh-tinh/feat/ren/4-refactor-middleware

update middleware and middleware tests

Merge pull request #3 from tinh-tinh/doc/update-readme

docs: update README with tslog middleware documentation