Shadcn Guideline: Tooltip — Use Tooltip for hints. Description: Tooltip for icon buttons and truncated text. Do: Tooltip for additional context. Don't: Title attribute for tooltips. Good Example: <Tooltip><TooltipTrigger><TooltipContent>. Bad Example: <button title="Delete">. Severity: Medium. Docs: https://ui.shadcn.com/docs/components/tooltip.