## Issue
Order creation failing with 400 BadRequest when using CustomerInfo (Telegram users).
Validator required IdentityReference to always be populated, but it's null when using CustomerInfo.
## Root Cause
CreateOrderDtoValidator.cs:10-12 enforced NotEmpty() on IdentityReference unconditionally.
TeleBot sends CustomerInfo for identified users, leaving IdentityReference null.
## Solution
Updated validator to accept EITHER IdentityReference OR CustomerInfo:
- New rule: At least one must be provided
- IdentityReference validation only applies when it's provided (.When() condition)
- Maintains backward compatibility with anonymous orders
## Impact
✅ Telegram bot orders can now be created successfully
✅ Anonymous orders still require IdentityReference
✅ Proper validation error messages for both scenarios
## Testing Required
- Create order via Telegram bot (with CustomerInfo)
- Create anonymous order (with IdentityReference)
- Verify both scenarios work correctly
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
SysAdmin
68131b6549