- ChatInput: Redesign with rounded container, better button alignment, helper text
- ChatHeader: Consistent bg-surface, refined typography and spacing
- ChatMessages: Improved empty state with icon badge and suggestion box
- MessageBubble: Cleaner message cards, collapsible tool input/output, status badges
- ToolsSidebar: Header/content separation, keyboard accessibility, wider width
- SettingsSidebar: Matching header style, dashed empty state, footer info section
All components now use consistent theme tokens (bg-surface, bg-background, etc.)
and follow the same visual patterns for headers, cards, and spacing.
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