The §7.7 smoke, running the pair together: registering the player row without an
`icon` blanked the whole portal with React error #130, because core's
PlayerPortalLayout rendered `<n.icon />` unguarded. Core is guarded now
(website), and this is the other half — the row had an icon before it moved and
should have kept one.
A second glyph rather than reusing IconShard: these two rows sit in different
navs and each matched its neighbours before the extraction. The admin sidebar's
UO rows were gems; the portal's Characters row was a person beside Appeals'
shield and Account's gear. Matching the nav a row lands in is the whole reason
`icon` is in the contract.
`registration.test.js` now asserts it for admin AND player rows, which is the
cheap place to catch the next one. The public header is text buttons and is
deliberately excluded.
Co-Authored-By: Claude <noreply@anthropic.com>