Add micro-benchmarks for high-frequency interactions.

[kotAPI]

Description

Add micro-benchmarks for high-frequency interactions in performance-sensitive components.

Focus on common hot paths such as keyboard navigation, selection changes, open/close cycles, pointer interactions, and repeated updates in interactive components. Keep the benchmark set small and targeted.

Examples

Potential benchmark scenarios:

• arrow-key navigation in Menu, Tabs, or RadioGroup
• opening and closing Dialog, Popover, or DropdownMenu
• repeated selection changes in Select or Combobox
• hover / pointer movement in Tooltip or HoverCard
• repeated expand/collapse in Accordion
• focus movement across dense interactive lists

Acceptance Criteria

1. Micro-benchmarks are added for selected high-frequency interaction paths.
2. The benchmark coverage is focused on meaningful hot paths, not broad synthetic coverage.
3. Docs/storybook are updated only if needed.
4. Add a changeset only if there is user-facing impact.