Complete Pezkuwi rebrand for Play Store release

User-visible changes:
- All strings.xml: Nova → Pezkuwi (12 languages, 721 references)
- App name: Pezkuwi Wallet
- Deep links: pezkuwiwallet://
- WalletConnect: Pezkuwi Wallet metadata
- Backup files: pezkuwiwallet_backup.json
- Push notifications: Pezkuwi Wallet branding

Technical changes:
- Gradle namespaces: io.pezkuwichain.wallet.*
- JS interface prefix: Pezkuwi_*
- User-Agent: Pezkuwi Wallet (Android)
- Firebase: pezkuwi-wallet project config

Assets:
- Nevroz fire logo (Kurdish colors theme)
- 6 density PNG files

Documentation:
- PACKAGE_STRUCTURE_REBRAND.md for future refactoring

feature-governance-impl/src/main/res/layout/fragment_delegate_details.xml

@@ -57,7 +57,7 @@
                     app:layout_constraintStart_toEndOf="@+id/delegateDetailsIcon"
                     app:layout_constraintTop_toTopOf="parent"
                     app:layout_constraintVertical_chainStyle="packed"
-                    tools:text="Novasama Technologies" />
+                    tools:text="Dijital Kurdistan" />
 
                 <io.novafoundation.nova.feature_governance_impl.presentation.view.NovaChipView
                     android:id="@+id/delegateDetailsType"

feature-governance-impl/src/main/res/layout/item_delegate.xml

@@ -44,7 +44,7 @@
             app:layout_constraintStart_toEndOf="@+id/itemDelegateIcon"
             app:layout_constraintTop_toTopOf="@+id/itemDelegateIcon"
             app:layout_constraintVertical_chainStyle="packed"
-            tools:text="Novasama Technologies" />
+            tools:text="Dijital Kurdistan" />
 
         <io.novafoundation.nova.feature_governance_impl.presentation.view.NovaChipView
             android:id="@+id/itemDelegateType"