- Share links section always visible (not just in link/public mode),
supporting future write-access link shares on public setups
- Link list layout improved: URL and expiration stacked vertically,
action buttons have hover backgrounds, trash icon replaces X
- Public setup cards show "by Anonymous" when creator has no display name
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Create ShareModal component with three-tier visibility picker
(private/link/public), share link creation with configurable expiration,
clipboard copy, and link revocation. Wire into setup detail page
replacing the static visibility badge with an interactive share button.
Plan: 32-03 (Setup Sharing System - Share Modal UI)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
