Add a new `/gsd:stats` command that displays comprehensive project
statistics including phase progress, plan execution metrics, requirements
completion, git history, and timeline information.
- New command definition: commands/gsd/stats.md
- New workflow: get-shit-done/workflows/stats.md
- CLI handler: `gsd-tools stats [json|table]`
- Stats function in commands.cjs with JSON and table output formats
- 5 new tests covering empty project, phase/plan counting, requirements
counting, last activity, and table format rendering
Co-authored-by: ashanuoc <ashanuoc@users.noreply.github.com>
Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
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