Add wallet descriptor management

app/src/main/kotlin/io/privkey/keep/ConnectionCards.kt

@@ -347,6 +347,32 @@ fun BunkerCard(status: BunkerStatus, onClick: () -> Unit) {
     }
 }
 
+@OptIn(ExperimentalMaterial3Api::class)
+@Composable
+fun WalletDescriptorCard(descriptorCount: Int, onClick: () -> Unit) {
+    Card(modifier = Modifier.fillMaxWidth(), onClick = onClick) {
+        Row(
+            modifier = Modifier.fillMaxWidth().padding(16.dp),
+            horizontalArrangement = Arrangement.SpaceBetween,
+            verticalAlignment = Alignment.CenterVertically
+        ) {
+            Column(modifier = Modifier.weight(1f)) {
+                Text("Wallet Descriptors", style = MaterialTheme.typography.titleMedium)
+                Text(
+                    "Manage multisig wallet descriptors",
+                    style = MaterialTheme.typography.bodySmall,
+                    color = MaterialTheme.colorScheme.onSurfaceVariant
+                )
+            }
+            Text(
+                if (descriptorCount > 0) "$descriptorCount" else "Manage",
+                style = MaterialTheme.typography.labelMedium,
+                color = MaterialTheme.colorScheme.primary
+            )
+        }
+    }
+}
+
 @Composable
 fun Nip55SettingsCard(
     onSignPolicyClick: () -> Unit,

app/src/main/kotlin/io/privkey/keep/KeepMobileApp.kt

@@ -2,6 +2,7 @@ package io.privkey.keep
 
 import android.app.Application
 import android.util.Log
+import io.privkey.keep.descriptor.DescriptorSessionManager
 import io.privkey.keep.nip46.BunkerService
 import io.privkey.keep.nip55.AutoSigningSafeguards
 import io.privkey.keep.nip55.CallerVerificationStore
@@ -321,6 +322,7 @@ class KeepMobileApp : Application() {
         _connectionState.value = ConnectionState()
         BunkerService.stop(this)
         bunkerConfigStore?.setEnabled(false)
+        DescriptorSessionManager.clearAll()
         withContext(Dispatchers.IO) {
             runAccountSwitchCleanup("revoke permissions") { permissionStore?.revokeAllPermissions() }
             runAccountSwitchCleanup("clear app settings") { permissionStore?.clearAllAppSettings() }

app/src/main/kotlin/io/privkey/keep/MainActivity.kt

@@ -32,6 +32,8 @@ import androidx.navigation.compose.NavHost
 import androidx.navigation.compose.composable
 import androidx.navigation.compose.currentBackStackEntryAsState
 import androidx.navigation.compose.rememberNavController
+import io.privkey.keep.descriptor.DescriptorSessionManager
+import io.privkey.keep.descriptor.WalletDescriptorScreen
 import io.privkey.keep.navigation.Route
 import io.privkey.keep.nip46.BunkerScreen
 import io.privkey.keep.nip46.BunkerService
@@ -57,6 +59,7 @@ import io.privkey.keep.uniffi.BunkerStatus
 import io.privkey.keep.uniffi.KeepMobile
 import io.privkey.keep.uniffi.PeerInfo
 import io.privkey.keep.uniffi.ShareInfo
+import kotlinx.coroutines.CancellationException
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.flow.StateFlow
@@ -315,6 +318,8 @@ fun MainScreen(
     var biometricTimeout by remember { mutableStateOf(biometricTimeoutStore.getTimeout()) }
     var biometricLockOnLaunch by remember { mutableStateOf(biometricTimeoutStore.isLockOnLaunchEnabled()) }
     var showBunkerScreen by remember { mutableStateOf(false) }
+    var showWalletDescriptorScreen by remember { mutableStateOf(false) }
+    var descriptorCount by remember { mutableIntStateOf(0) }
     val bunkerUrl by BunkerService.bunkerUrl.collectAsState()
     val bunkerStatus by BunkerService.status.collectAsState()
     var proxyEnabled by remember { mutableStateOf(proxyConfigStore.isEnabled()) }
@@ -391,23 +396,42 @@ fun MainScreen(
     }
 
     LaunchedEffect(Unit) {
+        DescriptorSessionManager.clearAll()
+        DescriptorSessionManager.activate()
+        runCatching {
+            withContext(Dispatchers.IO) {
+                keepMobile.walletDescriptorSetCallbacks(DescriptorSessionManager.createCallbacks())
+            }
+        }.onSuccess {
+            DescriptorSessionManager.setCallbacksRegistered(true)
+        }.onFailure {
+            if (it is CancellationException) throw it
+            Log.e("MainActivity", "Failed to set descriptor callbacks", it)
+            DescriptorSessionManager.setCallbacksRegistered(false)
+        }
         lifecycleOwner.lifecycle.repeatOnLifecycle(Lifecycle.State.STARTED) {
             repeat(Int.MAX_VALUE) {
-                val (newHasShare, newShareInfo, newAccounts, newActiveKey, newPeers, newPendingCount) = withContext(Dispatchers.IO) {
+                val (newHasShare, newShareInfo, newAccounts, newActiveKey, newPeers, newPendingCount, newDescriptorCount) = withContext(Dispatchers.IO) {
                     val h = keepMobile.hasShare()
                     val s = keepMobile.getShareInfo()
                     val a = storage.listAllShares().map { it.toAccountInfo() }
                     val k = storage.getActiveShareKey()
                     val p = if (h) keepMobile.getPeers() else emptyList()
                     val pc = if (h) keepMobile.getPendingRequests().size else 0
-                    PollResult(h, s, a, k, p, pc)
+                    val dc = if (h) {
+                        runCatching { keepMobile.walletDescriptorList().size }
+                            .onFailure { if (it is CancellationException) throw it }
+                            .getOrDefault(descriptorCount)
+                    } else 0
+                    PollResult(h, s, a, k, p, pc, dc)
                 }
                 hasShare = newHasShare
                 shareInfo = newShareInfo
                 allAccounts = newAccounts
                 activeAccountKey = newActiveKey
                 peers = newPeers
                 pendingCount = newPendingCount
+                descriptorCount = newDescriptorCount
                 refreshCertificatePins()
                 profileRelays = withContext(Dispatchers.IO) { loadProfileRelays(newActiveKey) }
                 delay(10_000)
@@ -552,6 +576,14 @@ fun MainScreen(
         return
     }
 
+    if (showWalletDescriptorScreen) {
+        WalletDescriptorScreen(
+            keepMobile = keepMobile,
+            onDismiss = { showWalletDescriptorScreen = false }
+        )
+        return
+    }
+
     if (showAccountSwitcher) {
         AccountSwitcherSheet(
             accounts = allAccounts,
@@ -696,11 +728,13 @@ fun MainScreen(
                 AppsTab(
                     hasShare = hasShare,
                     bunkerStatus = bunkerStatus,
+                    descriptorCount = descriptorCount,
                     onConnectedAppsClick = { showConnectedApps = true },
                     onSignPolicyClick = { showSignPolicyScreen = true },
                     onPermissionsClick = { showPermissionsScreen = true },
                     onHistoryClick = { showHistoryScreen = true },
-                    onBunkerClick = { showBunkerScreen = true }
+                    onBunkerClick = { showBunkerScreen = true },
+                    onWalletDescriptorClick = { showWalletDescriptorScreen = true }
                 )
             }
 
@@ -906,11 +940,13 @@ private fun HomeTab(
 private fun AppsTab(
     hasShare: Boolean,
     bunkerStatus: BunkerStatus,
+    descriptorCount: Int,
     onConnectedAppsClick: () -> Unit,
     onSignPolicyClick: () -> Unit,
     onPermissionsClick: () -> Unit,
     onHistoryClick: () -> Unit,
-    onBunkerClick: () -> Unit
+    onBunkerClick: () -> Unit,
+    onWalletDescriptorClick: () -> Unit
 ) {
     Column(
         modifier = Modifier
@@ -938,6 +974,12 @@ private fun AppsTab(
                 status = bunkerStatus,
                 onClick = onBunkerClick
             )
+            Spacer(modifier = Modifier.height(16.dp))
+
+            WalletDescriptorCard(
+                descriptorCount = descriptorCount,
+                onClick = onWalletDescriptorClick
+            )
         } else {
             Card(modifier = Modifier.fillMaxWidth()) {
                 Column(
@@ -1170,7 +1212,8 @@ private data class PollResult(
     val allAccounts: List<AccountInfo>,
     val activeAccountKey: String?,
     val peers: List<PeerInfo>,
-    val pendingCount: Int
+    val pendingCount: Int,
+    val descriptorCount: Int
 )
 
 @Composable