{"message":"Express API","datastore":"MongoDB","multiTenant":true,"endpoints":["POST /api/auth/register","POST /api/auth/login","POST /api/auth/accept-invite","GET /api/auth/me","POST /api/auth/switch-tenant","POST /api/auth/switch-customer","GET|PATCH /api/portal-admin/* (seller portal settings, customers, invoices, delivery proof)","GET|POST /api/portal/* (buyer portal — requires buyer JWT via switch-customer)","GET /api/public/invite?token=","POST /api/tenants","GET /api/tenant","GET /api/tenant/audit","POST /api/tenant/invites","GET /api/tenant/invites","DELETE /api/tenant/invites/:id","DELETE /api/tenant/members/:userId","GET /api/health","GET /api/users (tenant-scoped, RBAC)","POST /api/webhooks/stripe (stub)","GET|POST|PATCH|DELETE /api/catalog/* (products & kits, tenant-scoped)","GET|POST|PATCH|DELETE /api/order-flow/* (BPMN/DMN/CMMN order runtime, tenant-scoped)"]}