fix: gate PezkuwiCheckImmortal on chain identity, not extension presence

Confirmed via on-device logcat trace: approving a multisig operation on
Polkadot Asset Hub failed with "Failed to encode extension CheckMortality"
because isPezkuwi checked for the "AuthorizeCall" signed extension, which
Polkadot Asset Hub also declares - so PezkuwiCheckImmortal's raw DictEnum
value was used there too, and it isn't a valid instance of Polkadot's own
Era type codec. Switched the gate to the existing chain.isPezkuwiChain
(genesis-hash based) check already used for the bizinikiwi signing context
split. Also removes the temporary diagnostic logging added while tracing
this bug and the earlier deep-link routing fix.

app/src/main/java/io/novafoundation/nova/app/root/navigation/navigators/Navigator.kt

@@ -444,7 +444,9 @@ class Navigator(
     }
 
     override fun openBridgeFlow() {
-        navigationBuilder().action(R.id.action_mainFragment_to_bridgeFlow)
+        navigationBuilder().cases()
+            .addCase(R.id.mainFragment, R.id.action_mainFragment_to_bridgeFlow)
+            .addCase(R.id.balanceDetailFragment, R.id.action_balanceDetailFragment_to_bridgeFlow)
             .navigateInFirstAttachedContext()
     }
 

app/src/main/java/io/novafoundation/nova/app/root/presentation/RootViewModel.kt

@@ -225,11 +225,8 @@ class RootViewModel(
     }
 
     fun handleDeepLink(data: Uri) {
-        android.util.Log.e("DeepLinkDebug", "RootViewModel.handleDeepLink: raw=$data scheme=${data.scheme} authority=${data.authority} path=${data.path}")
         launch {
-            val result = deepLinkHandler.handleDeepLink(data)
-            android.util.Log.e("DeepLinkDebug", "RootViewModel.handleDeepLink: result=$result exceptionOrNull=${result.exceptionOrNull()}")
-            result
+            deepLinkHandler.handleDeepLink(data)
                 .onFailureInstance<DeepLinkHandlingException, Unit> {
                     val errorMessage = formatDeepLinkHandlingException(resourceManager, it)
                     showError(errorMessage)

app/src/main/res/navigation/split_screen_nav_graph.xml

@@ -847,6 +847,14 @@
             app:popUpTo="@id/balanceDetailFragment"
             app:popUpToInclusive="true" />
 
+        <action
+            android:id="@+id/action_balanceDetailFragment_to_bridgeFlow"
+            app:destination="@id/bridgeFragment"
+            app:enterAnim="@anim/fragment_open_enter"
+            app:exitAnim="@anim/fragment_open_exit"
+            app:popEnterAnim="@anim/fragment_close_enter"
+            app:popExitAnim="@anim/fragment_close_exit" />
+
     </fragment>
 
     <fragment