v1.0.1 add imperial input

What's changed

• Fixed BMI calculation when user enters weight in pounds
• Added pounds_to_kg() conversion helper
• Added unit tests covering conversion, BMI calculation, and category labels

v1.0.0 — BMI Calculator

What's Changed

• feat: add BMI calculator with kg input and category labels by @mlnotes2718 in #1

Full Changelog: https://github.com/mlnotes2718/git-8/commits/v1.0.0