- customers.user_id unique so impersonation/billing can't cross customers
- HostCreate validates datacenter is active (exists rule + active=1)
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
- migration seeds fsn/hel + any host-referenced code so existing installs
keep selectable datacenters after upgrade
- Billing::customer() resolves via user_id, email only as legacy fallback
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
datacenters table/model + admin CRUD (/admin/datacenters, nav). HostCreate
picks from active datacenters (validated); hosts show the datacenter code.
Seeded fsn/hel. 5 tests.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>