Unifies 17 duplicate git identity entries (if account for difference in
emails) into 8 canonical authors, improving git shortlog and contributor
statistics accuracy.
<details>
<summary>after / before -- not much given absolute number but still
better... and this does not care about emails</summary>
```shell
❯ git shortlog -sn | tac | nl | tail
275 21 Manuel Nuñez
276 38 Hendrik Sievers
277 48 Brynn Crowley
278 92 allcontributors[bot]
279 117 dependabot[bot]
280 375 dependabot-preview[bot]
281 564 Amir Zarrinkafsh
282 802 Clément Michaud
283 1567 James Elliott
284 5175 renovate[bot]
❯ git co master
Switched to branch 'master'
Your branch is up to date with 'origin/master'.
❯ git shortlog -sn | tac | nl | tail
277 38 Hendrik Sievers
278 47 Brynn Crowley
279 92 allcontributors[bot]
280 117 dependabot[bot]
281 260 Clément Michaud
282 375 dependabot-preview[bot]
283 542 Clement Michaud
284 564 Amir Zarrinkafsh
285 1567 James Elliott
286 5175 renovate[bot]
```
</details>
Co-authored-by: Claude Code 2.1.89 / Claude Opus 4.6 <noreply@anthropic.com>
Co-authored-by: James Elliott <james-d-elliott@users.noreply.github.com>
James Elliott