test: add mock for batch transactions (#21962)

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## **Related issues**

Fixes:

## **Manual testing steps**

```gherkin
Feature: my feature name

  Scenario: user [verb for user action]
    Given [describe expected initial app state]

    When user [verb for user action]
    Then [describe expected outcome]
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<!-- CURSOR_SUMMARY -->
---

> [!NOTE]
> Adds Polygon/EIP-7702 and transaction-sentinel mocks, refactors
Polymarket mocks (cash-out, RPC, event details), and updates/extends E2E
tests including a withdraw spec scaffold.
> 
> - **Feature flags**
> - Add Polygon (`0x89`) entries to `confirmations_eip_7702.contracts`
and extend `supportedChains`.
> - **Polymarket mocks**
> - **EIP-7702/Polygon support**: Add `POLYGON_EIP7702_CONTRACT_ADDRESS`
and `EIP7702_CODE_FORMAT`; return EIP-7702 code for `eth_getCode` of
`USER_WALLET_ADDRESS`.
> - **Transaction Sentinel**: New
`polymarket-transaction-sentinel-response.ts` and
`POLYMARKET_TRANSACTION_SENTINEL_MOCKS` for
`infura_simulateTransactions`.
> - **RPC enhancements**: Broaden `/proxy` matcher; handle proxy wallet
`eth_call` selector `0xaffed0e0`; add `eth_getTransactionCount` and
`eth_estimateGas` responses.
> - **Cash-out flow**: Consolidate into `POLYMARKET_POST_CASH_OUT_MOCKS`
(mocks CLOB order, updates USDC balance, high-priority balance refresh);
deprecate `POLYMARKET_CASH_OUT_BALANCE_LOAD_MOCKS`; add
`POLYMARKET_WITHDRAW_BALANCE_LOAD_MOCKS`; helper
`MOCK_BATCH_TRANSACTIONS`.
> - **Event details**: Rename default event export to
`POLYMARKET_EVENT_DETAILS_BLUE_JAYS_MARINERS_RESPONSE`; add/export
`POLYMARKET_EVENT_DETAILS_SPURS_PELICANS_RESPONSE`; update mocks to use
them.
>   - **RPC responses**: Add `TRANSACTION_COUNT_RESULT`.
> - **E2E tests**
> - Update `predict-cash-out.spec.ts` to use new cash-out mocks and
remove force-refresh mock.
> - Add `predict-withdraw.spec.ts` (withdraw flow scaffold) using new
mocks.
> 
> <sup>Written by [Cursor
Bugbot](https://cursor.com/dashboard?tab=bugbot) for commit
c6301fd. This will update automatically
on new commits. Configure
[here](https://cursor.com/dashboard?tab=bugbot).</sup>
<!-- /CURSOR_SUMMARY -->

Author: cortisiko

e2e/api-mocking/mock-responses/feature-flags-mocks.ts

@@ -66,8 +66,15 @@ export const confirmationsRedesignedFeatureFlags = [
               '0x5b394cc656b760fc15e855f9b8b9d0eec6337328361771c696d7f5754f0348e06298d34243e815ff8b5ce869e5f310c37dd100c1827e91b56bb208d1fafcf3a71c',
           },
         ],
+        '0x89': [
+          {
+            address: '0x63c0c19a282a1B52b07dD5a65b58948A07DAE32B',
+            signature:
+              '0x302aa2d59940e88f35d2fa140fe6a1e9dc682218a444a7fb2d88f007fbe7792b2b8d615f5ae1e4f184533a02c47d8ac0f6ba3f591679295dff93c65095c0f03d1b',
+          },
+        ],
       },
-      supportedChains: ['0xaa36a7', '0x539', '0x1'],
+      supportedChains: ['0xaa36a7', '0x539', '0x1', '0x89'],
     },
   },
 ];
@@ -104,8 +111,16 @@ export const remoteFeatureEip7702 = [
               '0x5b394cc656b760fc15e855f9b8b9d0eec6337328361771c696d7f5754f0348e06298d34243e815ff8b5ce869e5f310c37dd100c1827e91b56bb208d1fafcf3a71c',
           },
         ],
+        '0x89': [
+          {
+            name: 'Polygon',
+            signature:
+              '0x302aa2d59940e88f35d2fa140fe6a1e9dc682218a444a7fb2d88f007fbe7792b2b8d615f5ae1e4f184533a02c47d8ac0f6ba3f591679295dff93c65095c0f03d1b',
+            address: '0x63c0c19a282a1B52b07dD5a65b58948A07DAE32B',
+          },
+        ],
       },
-      supportedChains: ['0xaa36a7', '0x539', '0x1'],
+      supportedChains: ['0xaa36a7', '0x539', '0x1', '0x89'],
     },
   },
 ];

e2e/api-mocking/mock-responses/polymarket/polymarket-constants.ts

@@ -27,3 +27,13 @@ export const MULTICALL_CONTRACT_ADDRESS =
   '0xca11bde05977b3631167028862be2a173976ca11';
 export const CONDITIONAL_TOKENS_CONTRACT_ADDRESS =
   '0x4d97dcd97ec945f40cf65f87097ace5ea0476045';
+export const POLYGON_EIP7702_CONTRACT_ADDRESS =
+  '0x63c0c19a282a1B52b07dD5a65b58948A07DAE32B';
+
+// EIP-7702 format: 0xef01 (magic byte) + 00 (padding) + 20-byte contract address
+// This format indicates an EOA is upgraded with EIP-7702
+export const EIP7702_CODE_FORMAT = (contractAddress: string): string => {
+  const addressWithoutPrefix = contractAddress.toLowerCase().replace('0x', '');
+  // EIP-7702 format: ef01 (magic byte) + 00 (padding byte) + 20-byte address (40 hex chars)
+  return `0xef0100${addressWithoutPrefix}`;
+};

e2e/api-mocking/mock-responses/polymarket/polymarket-event-details-response.ts

@@ -3,7 +3,7 @@
  * Endpoint: /events/60362
  */
 
-export const POLYMARKET_EVENT_DETAILS_RESPONSE = {
+export const POLYMARKET_EVENT_DETAILS_BLUE_JAYS_MARINERS_RESPONSE = {
   id: '60362',
   ticker: 'mlb-tor-sea-2025-10-17',
   slug: 'mlb-tor-sea-2025-10-17',
@@ -380,3 +380,232 @@ export const POLYMARKET_EVENT_DETAILS_RESPONSE = {
   deploying: false,
   gameId: 10076813,
 };
+
+/**
+ * Mock response data for Polymarket event details API endpoint
+ * Event ID: 62553 - Spurs vs. Pelicans
+ */
+export const POLYMARKET_EVENT_DETAILS_SPURS_PELICANS_RESPONSE = {
+  id: '62553',
+  ticker: 'nba-sas-nop-2025-10-24',
+  slug: 'nba-sas-nop-2025-10-24',
+  title: 'Spurs vs. Pelicans',
+  description:
+    'In the upcoming NBA game, scheduled for October 24 at 8:00PM ET:\nIf the Spurs win, the market will resolve to "Spurs".\nIf the Pelicans win, the market will resolve to "Pelicans".\nIf the game is postponed, this market will remain open until the game has been completed.\nIf the game is canceled entirely, with no make-up game, this market will resolve 50-50.\nThe result will be determined based on the final score including any overtime periods.',
+  resolutionSource: 'https://www.nba.com/',
+  startDate: '2025-10-20T19:48:16.12238Z',
+  creationDate: '2025-10-25T00:00:00Z',
+  endDate: '2025-10-25T00:00:00Z',
+  image:
+    'https://polymarket-upload.s3.us-east-2.amazonaws.com/super+cool+basketball+in+red+and+blue+wow.png',
+  icon: 'https://polymarket-upload.s3.us-east-2.amazonaws.com/super+cool+basketball+in+red+and+blue+wow.png',
+  active: true,
+  closed: false,
+  archived: false,
+  new: false,
+  featured: false,
+  restricted: true,
+  liquidity: 286736.0313,
+  volume: 810829.632579,
+  openInterest: 0,
+  createdAt: '2025-10-20T19:44:18.517198Z',
+  updatedAt: '2025-10-24T20:16:37.479733Z',
+  competitive: 0.9999750006249843,
+  volume24hr: 601663.0284430003,
+  volume1wk: 619816.1113160002,
+  volume1mo: 619816.1113160002,
+  volume1yr: 619816.1113160002,
+  enableOrderBook: true,
+  liquidityClob: 286736.0313,
+  negRisk: false,
+  commentCount: 133,
+  markets: [
+    {
+      id: '641723',
+      question: 'Spurs vs. Pelicans',
+      conditionId:
+        '0x12899fadc50f47afa5f8e145380a9c6f0262d75ea12749bbbcb4f8b50f96cf6b',
+      slug: 'nba-sas-nop-2025-10-24',
+      resolutionSource: 'https://www.nba.com/',
+      endDate: '2025-10-25T00:00:00Z',
+      liquidity: '180671.5616',
+      startDate: '2025-10-20T19:45:23.832649Z',
+      image:
+        'https://polymarket-upload.s3.us-east-2.amazonaws.com/super+cool+basketball+in+red+and+blue+wow.png',
+      icon: 'https://polymarket-upload.s3.us-east-2.amazonaws.com/super+cool+basketball+in+red+and+blue+wow.png',
+      description:
+        'In the upcoming NBA game, scheduled for October 24 at 8:00PM ET:\nIf the Spurs win, the market will resolve to "Spurs".\nIf the Pelicans win, the market will resolve to "Pelicans".\nIf the game is postponed, this market will remain open until the game has been completed.\nIf the game is canceled entirely, with no make-up game, this market will resolve 50-50.\nThe result will be determined based on the final score including any overtime periods.',
+      outcomes: '["Spurs", "Pelicans"]',
+      outcomePrices: '["0.615", "0.385"]',
+      volume: '524574.695034',
+      active: true,
+      closed: false,
+      marketMakerAddress: '',
+      createdAt: '2025-10-20T19:44:19.000671Z',
+      updatedAt: '2025-10-24T20:23:49.423914Z',
+      new: false,
+      featured: false,
+      submitted_by: '0x91430CaD2d3975766499717fA0D66A78D814E5c5',
+      archived: false,
+      resolvedBy: '0x65070BE91477460D8A7AeEb94ef92fe056C2f2A7',
+      restricted: true,
+      groupItemThreshold: '0',
+      questionID:
+        '0xa42fab8d0df30928181953f2f77de88bbb0b1244a9bb2781d86f22d91553bc4a',
+      enableOrderBook: true,
+      orderPriceMinTickSize: 0.01,
+      orderMinSize: 5,
+      volumeNum: 524574.695034,
+      liquidityNum: 180671.5616,
+      endDateIso: '2025-10-25',
+      startDateIso: '2025-10-20',
+      hasReviewedDates: true,
+      volume24hr: 316414.12729000027,
+      volume1wk: 334567.2101630003,
+      volume1mo: 334567.2101630003,
+      volume1yr: 334567.2101630003,
+      gameStartTime: '2025-10-25 00:00:00+00',
+      secondsDelay: 3,
+      clobTokenIds:
+        '["110743925263777693447488608878982152642205002490046349037358337248548507433643", "38489710206351002266036612280230748165102516187175290608628298208123746725814"]',
+      umaBond: '500',
+      umaReward: '2',
+      volume24hrClob: 316414.12729000027,
+      volume1wkClob: 334567.2101630003,
+      volume1moClob: 334567.2101630003,
+      volume1yrClob: 334567.2101630003,
+      volumeClob: 524574.695034,
+      liquidityClob: 180671.5616,
+      customLiveness: 0,
+      acceptingOrders: true,
+      negRisk: false,
+      negRiskRequestID: '',
+      ready: false,
+      funded: false,
+      acceptingOrdersTimestamp: '2025-10-20T19:45:03Z',
+      cyom: false,
+      competitive: 0.9869476177551876,
+      pagerDutyNotificationEnabled: false,
+      approved: true,
+      rewardsMinSize: 0,
+      rewardsMaxSpread: 0,
+      spread: 0.01,
+      oneDayPriceChange: 0.04,
+      lastTradePrice: 0.62,
+      bestBid: 0.61,
+      bestAsk: 0.62,
+      automaticallyActive: true,
+      clearBookOnStart: true,
+      manualActivation: false,
+      negRiskOther: false,
+      sportsMarketType: 'moneyline',
+      umaResolutionStatuses: '[]',
+      pendingDeployment: false,
+      deploying: false,
+      deployingTimestamp: '2025-10-20T19:44:33.4803Z',
+      rfqEnabled: false,
+      holdingRewardsEnabled: false,
+      feesEnabled: false,
+    },
+  ],
+  outcomes: [
+    {
+      id: 'Spurs',
+      title: 'Spurs',
+      price: 0.615,
+      tokens: [
+        {
+          id: '110743925263777693447488608878982152642205002490046349037358337248548507433643',
+          price: 0.615,
+        },
+      ],
+    },
+    {
+      id: 'Pelicans',
+      title: 'Pelicans',
+      price: 0.385,
+      tokens: [
+        {
+          id: '38489710206351002266036612280230748165102516187175290608628298208123746725814',
+          price: 0.385,
+        },
+      ],
+    },
+  ],
+  series: [
+    {
+      id: '10345',
+      ticker: 'nba-2026',
+      slug: 'nba-2026',
+      title: 'NBA 2026',
+      seriesType: 'single',
+      recurrence: 'daily',
+      image:
+        'https://polymarket-upload.s3.us-east-2.amazonaws.com/super+cool+basketball+in+red+and+blue+wow.png',
+      icon: 'https://polymarket-upload.s3.us-east-2.amazonaws.com/super+cool+basketball+in+red+and+blue+wow.png',
+      active: true,
+      closed: false,
+      archived: false,
+      featured: false,
+      restricted: true,
+      createdAt: '2025-10-02T17:23:18.780864Z',
+      updatedAt: '2025-10-24T20:16:46.054922Z',
+      volume: 7028670.008665,
+      liquidity: 4244286.0135,
+      commentCount: 297,
+    },
+  ],
+  tags: [
+    {
+      id: '1',
+      label: 'Sports',
+      slug: 'sports',
+      forceShow: false,
+      publishedAt: '2023-10-24 22:37:50.296+00',
+      updatedBy: 15,
+      createdAt: '2023-10-24T22:37:50.31Z',
+      updatedAt: '2024-07-05T21:07:21.800664Z',
+      forceHide: true,
+    },
+    {
+      id: '745',
+      label: 'NBA',
+      slug: 'nba',
+      forceShow: false,
+      publishedAt: '2023-12-18 18:24:38.08+00',
+      createdAt: '2023-12-18T18:24:38.098Z',
+      updatedAt: '2024-06-18T14:52:57.582861Z',
+    },
+    {
+      id: '100639',
+      label: 'Games',
+      slug: 'games',
+      forceShow: false,
+      createdAt: '2024-09-23T22:41:37.670714Z',
+    },
+    {
+      id: '28',
+      label: 'Basketball',
+      slug: 'basketball',
+      forceShow: false,
+      publishedAt: '2023-11-02 21:04:25.152+00',
+      createdAt: '2023-11-02T21:04:25.158Z',
+      updatedAt: '2024-07-26T21:06:45.637044Z',
+    },
+  ],
+  cyom: false,
+  showAllOutcomes: true,
+  showMarketImages: false,
+  enableNegRisk: false,
+  automaticallyActive: true,
+  eventDate: '2025-10-24',
+  startTime: '2025-10-25T00:00:00Z',
+  eventWeek: 3,
+  seriesSlug: 'nba-2026',
+  negRiskAugmented: false,
+  pendingDeployment: false,
+  deploying: false,
+  gameId: 20022560,
+  homeTeamName: 'Pelicans',
+  awayTeamName: 'Spurs',
+};