refactor(frontend): split large reimbursement and audit modules

web/src/utils/suggestedActionKey.js

@@ -0,0 +1,6 @@
+export function buildSuggestedActionKey(action) {
+  const actionType = String(action?.action_type || '').trim()
+  const payload = action?.payload && typeof action.payload === 'object' ? action.payload : {}
+  const payloadKey = String(payload.expense_type || payload.expense_type_label || action?.label || '').trim()
+  return `${actionType}:${payloadKey}`
+}