changelog

Generate changelog from $ARGUMENTS: 1. **Parse arguments**: Extract the starting point (tag, date, or commit hash) and optional repo path (default: current directory) 2. **Read git log**: Run `git log --oneline --no-merges` since the specified point 3. **Categorize commits** by conventional commit prefixes: - **Features** (feat:, add:, new:) - **Bug Fixes** (fix:, bugfix:) - **Documentation** (docs:) - **Performance** (perf:) - **Refactoring** (refactor:) - **Other** (chore:, ci:, test:, style:, build:) 4. **If no conventional commits found**: Analyze commit messages and categorize by intent 5. **Format output**: ## [version/date range] ### Features - Description (commit-hash) ### Bug Fixes - Description (commit-hash) ### Other Changes - Description (commit-hash)