E2E Test Selection:
The changes are confined to the TrendingView predictions feed components:

1. PredictionsCarouselSection.tsx: Now slices data client-side to max 6 items (feed.data.slice(0, 6)) instead of passing pageSize to the API.
2. usePredictionsFeed.ts: Removed pageSize option from the hook - no longer passes page size to API calls.
3. useWorldCupPredictionsFeed.ts: Same removal of pageSize option.
4. useExploreSearch.ts: Removed PREDICTIONS_SEARCH_PAGE_SIZE = 20 constant and its usage when calling usePredictionsFeed for search.
5. useExploreSearch.test.ts: Updated unit test to remove pageSize: 20 assertion.

This is a refactoring of how prediction market data is paginated - moving from API-level page size control to client-side slicing for the carousel display. The search path no longer requests a larger page size (20) from the API.

Tag selection rationale:

• SmokePredictions: Directly tests the Predictions/Polymarket integration including market browsing and position flows. The carousel data slicing change could affect what markets are displayed.
• SmokeWalletPlatform: Required per SmokePredictions tag description - "Predictions is also a section inside the Trending tab (SmokeWalletPlatform); changes to Predictions views affect Trending. When selecting SmokePredictions, also select SmokeWalletPlatform."

No other tags are needed - no confirmations flow changes, no controller changes, no navigation changes, no account/network changes.

Performance Test Selection:
The changes are a minor refactoring of data pagination - moving from API-level page size to client-side slicing. This does not introduce new rendering complexity, additional API calls, or changes to data loading patterns that would meaningfully impact performance metrics. No performance tests are warranted.