fix(payment-reconciliation): apply field precision for allocated and difference amounts

[Bhavan23]

Ref: 47439

Issue:

• Allocated and difference amounts in Payment Reconciliation did not consider field precision. This led to rounding issues and inaccurate calculations, especially when different exchange rates were involved.

Fix:

• Applied field precision from Payment Reconciliation Allocation for both allocated_amount and difference_amount.
• Ensures consistent rounding and accurate difference calculations when handling multiple exchange rates.

Before:
1.

After:

Backport needed: v15