AdminUser held both panel staff and sales experts, so one mobile could not be
both. Staff now live in "Admin" (panel only); sales experts stay in "AdminUser"
untouched. Uniqueness is per table.
- migration 20261026120000_split_admin_table: additive only. Creates "Admin",
copies non-expert rows with their ids, re-points the "who did this" foreign
keys (ledger, order status, sms, notification, upload, allocation, workshop,
admin session) to "Admin" without moving data. Never writes to "AdminUser".
- login, JWT, SSO, branch/workshop supervisors and the users grid use "Admin";
SALES_EXPERT create/edit still goes through admin/users into "AdminUser".
- an admin cannot be turned into an expert or the reverse (different tables).
- manual/: optional phase-2 script to drop the dormant admin copies from
"AdminUser", and a read-only expert-login diagnostic.
- docs/ADMIN-TABLE-SPLIT.md: what changed, deploy checklist, rollback.
Tested on a copy with 12,000 experts: expert rows byte-identical (md5) before
and after; full migration chain applies and matches schema.prisma.
Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
