RootDeepLinkHandler cleared the persisted pending link only on success or
when no handler matched. A link that reached a handler and failed with a
DeepLinkHandlingException stayed in preferences and was replayed on
every launch. Clear it on terminal handling failures in both the fresh
and pending paths; this also recovers installs already stuck on update.
Other failures keep the link pending for a retry.
Branch.io was inherited from Nova Wallet fork but never configured.
Removed SDK integration, manifest intent filters, Gradle dependencies,
Dagger DI modules, and string resources. Deep linking now routes
exclusively through app.pezkuwichain.io with verified assetlinks.json.