Delete Wise fee expense when report transitions to draft

[Copilot]

When a reimbursement report with Wise transfer fees is unapproved, the fee expense must be deleted since it's no longer applicable.

Changes

• Model: Extended mark_draft transition to allow reimbursement_approved → draft with callback to delete Wise fee expenses
• Constant: Added WISE_TRANSFER_FEE_MEMO to ensure consistency between fee creation and deletion
• Tests: Added specs covering fee deletion across state transitions while preserving regular expenses

Implementation

event :mark_draft do
  transitions from: [..., :reimbursement_approved], to: :draft
  after do
    expenses.where(type: Reimbursement::Expense::Fee.name, memo: WISE_TRANSFER_FEE_MEMO).destroy_all
  end
end

The callback specifically targets expenses by both type and memo to avoid deleting unrelated fees.

Original prompt

---

This section details on the original issue you should resolve

<issue_title>[Wise Reimbursement] Delete Wise fee expense when report is unapproved</issue_title>
<issue_description>When a report moves from Approved -> Draft, we need to delete the Wise fee expense</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes [Wise Reimbursement] Delete Wise fee expense when report is unapproved #12015

---

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.