* feat(skill): add github-dashboard
* docs(skill): add github-dashboard screenshot
* fix(skill): address github-dashboard review
* fix(i18n): cover github-dashboard skill in de/ru/fr fallback lists
The localized-content coverage test asserts every skills/<id>/SKILL.md
appears in each locale's skills list. Adding github-dashboard to the
EN-fallback id list keeps de/ru/fr CI green.
* fix(i18n): cover mission-control design system in de/ru/fr fallback lists
Same backfill as the one applied on PR #714: mission-control was added
in #858 without locale fallback entries, so the localized-content
coverage test breaks any open PR once GitHub merges current main into
its head ref.
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Co-authored-by: joey <joey@joeydeMacBook-Air.local>
Co-authored-by: lefarcen <935902669@qq.com>
