- ResolvesCustomer trait replaces 5 duplicated customer() lookups; portal actions
now SAY why nothing happened (operator accounts have no Customer) instead of
returning silently — the actual cause of 'dead buttons', '0/0 seats' and
'settings not saving' when signed in as admin
- portal layout: explicit notice for a login without a linked customer
- /cloud: per-instance maintenance badge + window details; seat note 'owner = seat 1'
- maintenance form: sectioned card, hints, placeholder, styled datetime fields,
grouped host picker with per-datacenter select-all + selection counter
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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