Allow payments to be partially or fully reallocated to other invoices without requiring a refund or deletion.

Current Behavior

When a payment is applied to the wrong invoice, the only option is to delete and refund the payment entirely or add as a customer credit.

Requested Behavior

Users should be able to select an existing payment and reallocate part or all of it to a different invoice. This would allow corrections to be made internally without impacting the customer-facing record or triggering a refund.

Why This Matters

This feature would allow teams to correct mistakes quickly, avoid unnecessary refund processing, and maintain accurate invoice records without disrupting the customer experience.