Phase 1: Parse Arguments
Read the argument for the target version or sprint number. If a version is given, use the corresponding git tag. If a sprint number is given, use the sprint date range.
Verify the repository is initialized: run git rev-parse --is-inside-work-tree to confirm git is available. If not a git repo, inform the user and abort gracefully.
Phase 2: Gather Change Data
Read the git log since the last tag or release:
git log --oneline [last-tag]..HEAD
If n
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