Use when adding, restyling, reviewing or migrating any card, panel, tile, KPI/stat block, list-item surface or clickable content container in an app that uses @devopsnext/starterkit-card-component — whenever a `variant=`, `tone=` or `fill=` string is being chosen, when installing or pinning the package, and when diagnosing symptoms like a gradient card that renders as a plain grey box, an unreadable label on a gradient fill, content that shifts by 2px when the border is removed, a card that lifts under the pointer but does nothing when clicked, a `disabled` card link that still navigates, or a popover clipped off at the card's edge.
