feat: Enable convert to contract for direct payg accounts (#5008)

Author: eatondustin1

cypress/e2e/cloud/operator.test.ts

@@ -145,7 +145,7 @@ describe('Operator Page', () => {
     cy.getByTestID('account-view--header').contains('operator1 (1)')
     // should not be able to delete undeletable accounts
     cy.getByTestID('account-delete--button').should('be.disabled')
-    // should not be able to convert non-free accounts to contract
+    // should not be able to convert cancelled accounts to contract
     cy.getByTestID('account-convert-to-contract--button').should('be.disabled')
 
     // Associated Users Section

src/operator/account/AccountViewHeader.tsx

@@ -26,6 +26,9 @@ const AccountViewHeader: FC = () => {
     deleteOverlayVisible,
   } = useContext(AccountContext)
   const {hasWritePermissions} = useContext(OperatorContext)
+  const canConvertToContract =
+    account.type === 'free' ||
+    (account.type === 'pay_as_you_go' && account.zuoraAccountId !== null)
 
   return (
     <FlexBox
@@ -47,7 +50,7 @@ const AccountViewHeader: FC = () => {
             setConvertToContractOverlayVisible(!convertToContractOverlayVisible)
           }
           status={
-            account.type === 'free'
+            canConvertToContract
               ? ComponentStatus.Default
               : ComponentStatus.Disabled
           }