EuiCopy provides a render-prop pattern for copying text to clipboard with a tooltip confirmation.

• File: components/copy/copy.tsx
• Class size: 41 lines
• State: tooltipText
• Lifecycle: None

Migration notes:

Tiny component. Single state field, no lifecycle. Direct conversion.

Acceptance criteria:

• Convert to function component with useState
• Maintain clipboard copy and tooltip feedback behavior
• All existing tests pass