fix: expect correct type from SQLDelight Account query

modules/persistence/src/commonMain/kotlin/com/sphereon/oid/fed/persistence/repositories/AccountRepository.kt

@@ -1,5 +1,6 @@
 package com.sphereon.oid.fed.persistence.repositories
-import com.sphereon.oid.fed.openapi.models.Account
+
+import Account.Account
 import com.sphereon.oid.fed.persistence.Database
 
 interface AccountRepository {

modules/persistence/src/jvmMain/kotlin/com.sphereon.oid.fed.persistence.repositories/AccountRepository.jvm.kt

@@ -1,16 +1,23 @@
 package com.sphereon.oid.fed.persistence.repositories
 
+import Account.Account
 import Account.AccountQueries
 import com.sphereon.oid.fed.persistence.Database
-import app.cash.sqldelight.Query
-import com.sphereon.oid.fed.openapi.models.Account
 
 private class JvmAccountRepository(database: Database) : AccountRepository {
     private val accountQueries: AccountQueries = database.accountQueries
 
     override fun findById(id: Int): Account? {
         return accountQueries.findById(id).executeAsOneOrNull()
     }
+
+    override fun findByUsername(username: String): Account? {
+        return accountQueries.findByUsername(username).executeAsOneOrNull()
+    }
+
+    override fun create(account: Account) {
+        accountQueries.create(account.username)
+    }
 }
 
 actual fun AccountRepository(database: Database): AccountRepository = JvmAccountRepository(database)