feat(platform-wallet): wallet-level DPNS username marketplace with FFI and Swift wrappers

packages/kotlin-sdk/KotlinExampleApp/app/src/main/java/org/dashfoundation/example/di/AppContainer.kt

@@ -218,6 +218,7 @@ class AppContainer(private val context: Context) {
                     manager.stopShieldedSync()
                 }
                 manager.stopDashPaySync()
+                manager.stopDpnsSync()
             } catch (e: Exception) {
                 android.util.Log.w(TAG, "Failed to stop sync coordinators", e)
             }
@@ -287,6 +288,9 @@ class AppContainer(private val context: Context) {
                 if (!manager.isDashPaySyncRunning()) {
                     manager.startDashPaySync()
                 }
+                if (!manager.isDpnsSyncRunning()) {
+                    manager.startDpnsSync()
+                }
             } catch (e: Exception) {
                 android.util.Log.e(TAG, "Failed to bind wallet-scoped services", e)
             }

packages/kotlin-sdk/KotlinExampleApp/app/src/main/java/org/dashfoundation/example/navigation/AppNavHost.kt

@@ -41,6 +41,7 @@ import org.dashfoundation.example.ui.dashpay.HiddenContactsScreen
 import org.dashfoundation.example.ui.dashpay.IgnoredContactsScreen
 import org.dashfoundation.example.ui.dashpay.InvitationsScreen
 import org.dashfoundation.example.ui.identity.DpnsTestScreen
+import org.dashfoundation.example.ui.identity.DpnsMarketplaceScreen
 import org.dashfoundation.example.ui.identity.IdentitiesHomeScreen
 import org.dashfoundation.example.ui.identity.IdentityDetailScreen
 import org.dashfoundation.example.ui.identity.KeyDetailScreen
@@ -181,6 +182,11 @@ fun AppNavHost(
             SelectMainNameScreen(route.identityIdHex, navController)
         }
 
+        composable<DpnsMarketplace> { entry ->
+            val route = entry.toRoute<DpnsMarketplace>()
+            DpnsMarketplaceScreen(route.identityIdHex, navController)
+        }
+
         composable<KeysList> { entry ->
             val route = entry.toRoute<KeysList>()
             KeysListScreen(route.identityIdHex, navController)

packages/kotlin-sdk/KotlinExampleApp/app/src/main/java/org/dashfoundation/example/navigation/Routes.kt

@@ -105,6 +105,9 @@ import kotlinx.serialization.Serializable
 /** Pick the identity's main DPNS name (← `SelectMainNameView.swift`). */
 @Serializable data class SelectMainName(val identityIdHex: String)
 
+/** Browse, buy and manage DPNS marketplace names for one wallet identity. */
+@Serializable data class DpnsMarketplace(val identityIdHex: String)
+
 /** All public keys of an identity (← `KeysListView.swift`). */
 @Serializable data class KeysList(val identityIdHex: String)
 

packages/kotlin-sdk/KotlinExampleApp/app/src/main/java/org/dashfoundation/example/ui/identity/IdentityDetailScreen.kt

@@ -44,6 +44,7 @@ import org.dashfoundation.example.di.LocalAppContainer
 import org.dashfoundation.example.di.LocalAppState
 import org.dashfoundation.example.navigation.ContestDetail
 import org.dashfoundation.example.navigation.DashPayHome
+import org.dashfoundation.example.navigation.DpnsMarketplace
 import org.dashfoundation.example.navigation.KeysList
 import org.dashfoundation.example.navigation.RegisterName
 import org.dashfoundation.example.navigation.SelectMainName
@@ -353,6 +354,13 @@ fun IdentityDetailScreen(identityIdHex: String, navController: NavHostController
                     }
                 }
                 HorizontalDivider(Modifier.padding(vertical = 8.dp))
+                ListItem(
+                    headlineContent = { Text("DPNS Marketplace") },
+                    supportingContent = { Text("Browse, buy, price, transfer, and view history") },
+                    modifier = Modifier
+                        .clickable { navController.navigate(DpnsMarketplace(identityIdHex)) }
+                        .testTag("identityDetail.dpnsMarketplace"),
+                )
                 ListItem(
                     headlineContent = { Text("Register Name") },
                     modifier = Modifier

packages/kotlin-sdk/KotlinExampleApp/app/src/main/java/org/dashfoundation/example/ui/storage/StorageModels.kt

@@ -81,7 +81,15 @@ val STORAGE_MODELS: List<StorageModel> = listOf(
         headline = { row ->
             "${row.text("label") ?: "?"}.${row.text("parentDomainName") ?: "dash"}"
         },
-        subtitle = { row -> row.base58("identityId")?.let { truncateMiddle(it) } },
+        subtitle = { row ->
+            val ownership = if (row.bool("isOwned")) "owned" else when (row.long("saleStatusRaw")) {
+                1L -> "sold"
+                2L -> "transferred"
+                else -> "departed"
+            }
+            val price = row.long("priceCredits")?.let { " · $it credits" }.orEmpty()
+            "$ownership$price"
+        },
     ),
     StorageModel(
         name = "dashpayProfiles", displayName = "DashPay Profiles",

packages/kotlin-sdk/KotlinExampleApp/app/src/main/java/org/dashfoundation/example/ui/storage/StorageRecordDetailScreen.kt

@@ -118,6 +118,8 @@ private val DATE_COLUMNS = setOf(
     "createdAt", "updatedAt", "lastUpdated", "lastUpdatedAt", "lastAccessedAt",
     "lastAccessed", "lastSyncedAt", "eventTimestamp", "localCreatedAt",
     "localUpdatedAt", "transferredAt",
+    "marketplaceUpdatedAt", "documentCreatedAtMs", "documentUpdatedAtMs",
+    "documentTransferredAtMs",
 )
 
 @Composable