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- ChatInterface controls, settings, input use Button/Input/Textarea/Label - ExpandableTextarea and ModelSelector restyled on shadcn tokens - ActivityStats wrapped in Card; Tooltip uses shadcn tooltip Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01UmuGqwNBJNEAMaWsdCDqUC