Prioritize default admin for user deletion transfers

Update the user deletion process to prioritize transferring ownership to the `admin_local` user, falling back to any available admin if `admin_local` is not found.

Replit-Commit-Author: Agent
Replit-Commit-Session-Id: a8a78c07-e900-425c-a577-5b4c5894379d
Replit-Commit-Checkpoint-Type: full_checkpoint
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replit.md

@@ -84,7 +84,7 @@ Preferred communication style: Simple, everyday language.
 - **Root Cause**: User records were referenced by multiple tables (customer_orders, deliveries, DLC products, etc.)
 - **Solution Implemented**:
   - Enhanced deleteUser method with database transaction for atomicity
-  - Dynamic admin user lookup instead of hardcoded fallback user
+  - Prioritized lookup for `admin_local` (default admin) with fallback to any admin user
   - Ownership transfer of all user-created records to existing admin before deletion
   - Comprehensive handling of all foreign key relationships
   - Graceful error handling when no admin user exists