Add routingOptions to payment requests

[onurpolattimur]

Summary

Add routingOptions array to payment requests to allow clients to specify routing preferences.

Changes

• Add routingOptions array example to payment sample
• Include orderingRule field with options: ON_US, LOW_COMMISSION_RATE, IN_ORDER
• Include optional posAliases array for routing configuration

Technical Details

Since PHP client uses associative arrays for requests, the implementation adds an example in the sample file:

'routingOptions' => array(
    'orderingRule' => 'ON_US', // Options: ON_US, LOW_COMMISSION_RATE, IN_ORDER
    'posAliases' => array('pos1', 'pos2') // Optional: List of POS aliases
)

This pattern can be applied to all payment request types:

• Create Payment
• Create Deposit Payment
• Init 3DS Payment
• Init Checkout Payment

Test Plan

• Test payment request with routingOptions
• Test backward compatibility (requests without routingOptions)
• Verify proper serialization to API