- promote the message-history EmptyState into components/shared/empty-state
and use it for the bare "No devices found" / "No API keys found"
placeholders (icon + title + actionable hint, fade-in)
- button primitive: subtle active:scale press state (transition covers
transform; the global prefers-reduced-motion guard still disables it)
- finish the deferred bg-gradient-to-* -> bg-linear-to-* rename (Tailwind v4
canonical utility) across the remaining four alert/modal components
Build, 25 unit tests, and 6 e2e green.
Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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