E2E Test Selection:
The two changed files are in the WhatsHappeningDetailView component:

1. WhatsHappeningDetailView.tsx: Swaps SafeAreaView import from react-native to react-native-safe-area-context. This is a standard fix for proper safe area inset handling on both iOS and Android. It's a low-risk change but could affect the layout/rendering of the detail view screen.

2. WhatsHappeningExpandedCard.tsx: Adds border border-transparent to the dark mode AI pill container CSS class. This is a purely cosmetic fix to ensure consistent border rendering in dark mode (matching the light mode which already has a border).

Impact analysis:

• The WhatsHappening feature is embedded in PerpsHomeView (via WhatsHappeningSection) and in the Trending tab
• The WhatsHappeningDetailView is registered as a navigation screen in MainNavigator.js
• These changes are isolated to the WhatsHappening detail view and its expanded card component
• No controller changes, no shared navigation changes, no logic changes

Tag selection:

• SmokeWalletPlatform: The Trending tab hosts the WhatsHappening section; changes to views embedded in Trending affect this tag
• SmokePerps: PerpsHomeView directly renders WhatsHappeningSection; per tag description, Perps views (including PerpsHomeView) affect Trending/SmokeWalletPlatform

Per SmokePerps description: "When selecting SmokePerps, also select SmokeWalletPlatform (Trending section) and SmokeConfirmations (Add Funds deposits are on-chain transactions)." However, since these changes don't touch any transaction/confirmation flows, SmokeConfirmations is not warranted here — the changes are purely UI/layout fixes with no transaction logic involved.

Performance Test Selection:
The changes are minor UI fixes: a SafeAreaView import swap and a CSS class addition for dark mode border consistency. Neither change affects rendering performance, data loading, state management, or any performance-critical paths. No performance tests are warranted.