Phase 51 validation
===================
PHP files: 139 (all syntax valid)
Named database constraints: 658
Duplicate named constraints: 0
Phase 51 foreign-key constraints: 30
CSS brace balance: 0
Complaint routes/navigation: passed
Customer portal support integration: passed
New service bind_param arity: passed
Legacy CRM complaint preservation: passed
Accounting period-lock inheritance for financial redress: passed by central AccountingService integration