E2E Test Selection:
The only change is a patch version bump of @xmldom/xmldom from 0.8.11 to 0.8.12. This library is used exclusively in app/util/favicon/index.ts for parsing HTML to extract favicon URLs from dApp websites. The favicon utility is used in the browser/dApp connection context to display site icons.

This is a very narrow, low-risk change:

1. It's a patch-level dependency update (0.8.11 → 0.8.12), likely a bug fix or security patch
2. Only affects favicon display in the browser/dApp context
3. No core wallet functionality, controllers, transactions, or critical paths are affected
4. The DOMParser usage in favicon/index.ts is straightforward and unlikely to be broken by a patch update

Since the change touches browser/dApp functionality (favicon parsing when connecting to dApps), SmokeNetworkExpansion covers dApp connection flows which would exercise the favicon utility. However, given the extremely narrow scope of this change (just favicon display), even this may be conservative. No performance tests are needed as this is a utility library patch with no performance implications.

Performance Test Selection:
The @xmldom/xmldom patch update only affects favicon HTML parsing, which is a lightweight utility operation with no meaningful performance impact. No performance tests are warranted.