Adds the actual `<RecentAchievementsCard>` component referenced by the
dashboard wiring in the previous commit. The previous commit's `-o`
pathspec scope accidentally dropped these new untracked files; without
them the dashboard import resolves to an empty module and breaks the
build. Splitting into two commits per `verification-before-completion`
rather than amending so the parallel-agent push race can't lose the
landing.
The card itself: TanStack Query against
`/api/gamification/achievements`, `pickRecentUnlocks(achievements, 3)`
to slice + sort by completedAt descending, locked entries dropped.
Empty state painted with a CTA + link to `/achievements`.
Test file: `pickRecentUnlocks` ordering / cap / no-date fallback +
empty-state CTA render + three-most-recent render shape.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
HealthLog — personal health-tracking PWA with weight, blood pressure,
pulse, mood tracking, medication compliance, Withings integration,
doctor report PDF export, and Dracula-themed UI.
