refine UI layout, theming, and component consistency across screens

- Add MCP logo (light/dark variants) to ConnectedLayout header
- Replace Tabs with SegmentedControl in header, split into 1/3 sections
- Wrap all screens in Container for consistent margins
- Use Card instead of Paper for panel backgrounds across all screens
- Add SubscribeButton atom, CopyButton for resource URI
- Move annotations from ResourceListItem to ResourcePreviewPanel
- Improve AnnotationBadge colors for dark mode visibility
- Add Tools, Resources, and Prompts headers to list panels
- Add ConnectedLayout stories for Tools, Resources, and Prompts tabs
- Remove unused onCopy prop and copy button from PromptMessagesDisplay

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

clients/web/src/components/molecules/ToolDetailPanel/ToolDetailPanel.tsx

@@ -52,11 +52,6 @@ export function ToolDetailPanel({
       <Text fw={700} size="lg" truncate="end">
         {title ?? name}
       </Text>
-      {title && (
-        <Text size="sm" c="dimmed" truncate="end">
-          {name}
-        </Text>
-      )}
       {hasAnnotations && (
         <Group gap="xs">
           {annotations.audience && (