test: add assertions to claim activity view

[cortisiko]

Description

This PR adds assertions to claim flow

Changelog

CHANGELOG entry:

Related issues

Fixes:

Manual testing steps

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]

Screenshots/Recordings

Before

After

Pre-merge author checklist

• I’ve followed MetaMask Contributor Docs and MetaMask Mobile Coding Standards.
• 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 format if applicable
• I’ve applied the right labels on the PR (see labeling guidelines). 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.

---

Note

Adds mocks to surface REDEEM activity after claiming and updates e2e to verify activity details, amounts, and balance refresh.

• Mocks (Polymarket):
  • Add POLYMARKET_CLAIMED_POSITIONS_ACTIVITY_RESPONSE and new helper POLYMARKET_ADD_CLAIMED_POSITIONS_TO_ACTIVITY_MOCKS to prepend REDEEM transactions to activity.
  • Wire new activity mock into claim flow; keep resolved positions empty post-claim and refresh USDC balance.
• E2E Tests:
  • Update predict-claim-positions.spec.ts to verify claim button disappears, navigate to Activity → Predictions, open each claimed item, and assert formatted amounts; verify wallet balance on iOS.
  • Adjust synchronization handling and mock sequencing in the claim flow.
• Page Objects:
  • Add amountDisplay getter to predictionsActivityDetails for asserting displayed amounts.

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[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

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