chore: MMI adds back the current Tx confirmation view to MMI (#26539)

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## **Description**

While we don't support the new confirmation UI for Txs (MMI flow got
broken with the upgrade), we need to show the current one to MMI.

## **Related issues**

Fixes:

## **Manual testing steps**

1. Go to this page...
2.
3.

## **Screenshots/Recordings**

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before and after of your change. -->

### **Before**

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### **After**

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## **Pre-merge author checklist**

- [ ] I've followed [MetaMask Contributor
Docs](https://github.com/MetaMask/contributor-docs) and [MetaMask
Extension Coding
Standards](https://github.com/MetaMask/metamask-extension/blob/develop/.github/guidelines/CODING_GUIDELINES.md).
- [ ] I've completed the PR template to the best of my ability
- [ ] I’ve included tests if applicable
- [ ] I’ve documented my code using [JSDoc](https://jsdoc.app/) format
if applicable
- [ ] I’ve applied the right labels on the PR (see [labeling
guidelines](https://github.com/MetaMask/metamask-extension/blob/develop/.github/guidelines/LABELING_GUIDELINES.md)).
Not required for external contributors.

## **Pre-merge reviewer checklist**

- [ ] I've manually tested the PR (e.g. pull and build branch, run the
app, test code being changed).
- [ ] I confirm that this PR addresses all acceptance criteria described
in the ticket it closes and includes the necessary testing evidence such
as recordings and or screenshots.

test/e2e/playwright/mmi/pageObjects/mmi-auth0-page.ts

@@ -45,6 +45,7 @@ export class Auth0Page {
       .locator('#password')
       .fill(process.env.MMI_E2E_E2E_AUTH0_PASSWORD as string);
     await this.page.getByRole('button', { name: /continue/iu }).click();
+    await this.page.getByRole('button', { name: /E2E Organization/iu }).click();
     await expect(this.page).toHaveURL(portfolio);
   }
 }

test/e2e/playwright/mmi/specs/extension.visual.spec.ts

@@ -105,6 +105,8 @@ test.describe('MMI extension', () => {
       'Custody Account R',
       'Custody Account S',
       'Custody Account T',
+      'TR',
+      'TR2',
     ];
 
     // Getting extension id of MMI

ui/helpers/utils/build-types.js

@@ -31,6 +31,10 @@ export function isBeta() {
   return process.env.METAMASK_BUILD_TYPE === 'beta';
 }
 
+export function isMMI() {
+  return process.env.METAMASK_BUILD_TYPE === 'mmi';
+}
+
 // Returns a specific version of an asset based on
 // the current metamask version (i.e. main, beta, etc.)
 export function getBuildSpecificAsset(assetName) {

ui/pages/confirmations/hooks/useCurrentConfirmation.test.ts

@@ -310,4 +310,31 @@ describe('useCurrentConfirmation', () => {
       expect(currentConfirmation).toBeUndefined();
     });
   });
+
+  describe('useCurrentConfirmation with MM build type env var (MMI)', () => {
+    beforeAll(() => {
+      jest.resetModules();
+      process.env.METAMASK_BUILD_TYPE = 'mmi';
+    });
+
+    afterAll(() => {
+      process.env.METAMASK_BUILD_TYPE = 'main';
+    });
+
+    it('returns undefined if build type is MMI, user setting is enabled and transaction has correct type', () => {
+      const currentConfirmation = runHook({
+        pendingApprovals: [
+          { ...APPROVAL_MOCK, type: ApprovalType.Transaction },
+        ],
+        redesignedConfirmationsEnabled: true,
+        transaction: {
+          ...TRANSACTION_MOCK,
+          type: TransactionType.contractInteraction,
+        },
+        isRedesignedConfirmationsDeveloperEnabled: false,
+      });
+
+      expect(currentConfirmation).toBeUndefined();
+    });
+  });
 });

ui/pages/confirmations/hooks/useCurrentConfirmation.ts

@@ -17,6 +17,7 @@ import {
 } from '../../../selectors';
 import { REDESIGN_APPROVAL_TYPES, REDESIGN_TRANSACTION_TYPES } from '../utils';
 import { selectUnapprovedMessage } from '../../../selectors/signatures';
+import { isMMI } from '../../../helpers/utils/build-types';
 
 /**
  * Determine the current confirmation based on the pending approvals and controller state.
@@ -73,7 +74,9 @@ const useCurrentConfirmation = () => {
     (isRedesignedConfirmationsDeveloperSettingEnabled && isCorrectApprovalType);
 
   const shouldUseRedesignForTransactions =
-    (isRedesignedTransactionsUserSettingEnabled && isCorrectTransactionType) ||
+    (!isMMI() &&
+      isRedesignedTransactionsUserSettingEnabled &&
+      isCorrectTransactionType) ||
     (isRedesignedConfirmationsDeveloperSettingEnabled &&
       isCorrectTransactionType);