empty-stateslisted

# Empty, loading & error states Use when a view can be empty, slow, or broken — design the other three states, not just the happy one. ## Checklist - Empty: say what goes here and give the one action that fills it. - First-run empty differs from filtered-empty; do not reuse one copy for both. - Loading: hold the layout with a skeleton so nothing jumps when data lands. - Skip the spinner under ~300ms; it reads as slower than nothing. - Error: say what failed, whether it was them or us, and offer a retry. - Keep already-loaded content on screen when a refresh fails.