Include taxes breakdown in exports

🔍 Problem Statement

Currently, tax amounts are aggregated into a single total field "tax total" in the exports, which makes it difficult to distinguish between different tax types (e.g., GST, PST, QST, HST) in the invoices/fulfillments export. This lack of granularity reduces clarity in financial reporting and limits usability for accounting and compliance purposes.

💡 User Story

As a Pelcro client,

I want tax amounts to be separated by type (e.g., GST, PST, QST, HST) in the invoices/ fulfillments exports,

so that I can clearly understand, report, and reconcile taxes for accounting and compliance needs.

🎯 Definition of Done

✔ Tax amounts are exposed as separate fields by tax type (e.g., GST, PST, QST, HST) instead of a single aggregated value.

✔ All exports containing tax data (CSV, reports, etc.) include separate columns for each tax type

All new columns are added to the end of export.
Make sure taxes & its breakdowns are available on the invoices/fulfillments exports.

✔ The total tax amount, if still present, is clearly derived as the sum of individual tax fields

✔ Existing workflows that rely on total tax are not broken

✔ Proper handling is defined for cases where certain tax types do not apply (e.g., null or 0 values)

✔ Changes are validated to ensure accuracy of tax calculations across all outputs

✔ Documentation is updated to reflect the new tax structure and export format