fix: thread bitcoinAddress/bitcoinPublicKey through PolkadotVaultMetaAccount

CI caught "no parameter with name 'bitcoinAddress'" in AccountMappers.kt -
every other MetaAccount subclass got these constructor params threaded
through in the Phase 2 batch, but PolkadotVaultMetaAccount only got the
isBitcoinBased guard in supportsAddingChainAccount(), not the params.

feature-account-impl/src/main/java/io/novafoundation/nova/feature_account_impl/domain/account/model/PolkadotVaultMetaAccount.kt

@@ -22,6 +22,8 @@ class PolkadotVaultMetaAccount(
     parentMetaId: Long?,
     tronAddress: ByteArray? = null,
     tronPublicKey: ByteArray? = null,
+    bitcoinAddress: ByteArray? = null,
+    bitcoinPublicKey: ByteArray? = null,
 ) : DefaultMetaAccount(
     id = id,
     globallyUniqueId = globallyUniqueId,
@@ -37,7 +39,9 @@ class PolkadotVaultMetaAccount(
     chainAccounts = chainAccounts,
     parentMetaId = parentMetaId,
     tronAddress = tronAddress,
-    tronPublicKey = tronPublicKey
+    tronPublicKey = tronPublicKey,
+    bitcoinAddress = bitcoinAddress,
+    bitcoinPublicKey = bitcoinPublicKey
 ) {
 
     override suspend fun supportsAddingChainAccount(chain: Chain): Boolean {