Select account when added

AtProtoBackup/ContentView.swift

···
   @State private var inputText = ""
   @State private var isLoading = false
   @State private var errorMessage: String?
+  @State private var selectedAccount: PersistentIdentifier?
   
   var body: some View {
     NavigationSplitView {
-      List {
+      List(selection: $selectedAccount) {
         ForEach(items) { item in
-          NavigationLink {
-            AccountDetailView(account: item)
-          } label: {
-            AccountListItemView(account: item)
-          }
+          AccountListItemView(account: item)
+            .tag(item.id)
         }
         .onDelete(perform: deleteItems)
       }
···
         }
       }
     } detail: {
-      Text("Select an item")
+      if let selectedId = selectedAccount,
+         let account = items.first(where: { $0.id == selectedId }) {
+        AccountDetailView(account: account)
+      } else {
+        Text("Select an item")
+      }
     }
     .onAppear {
       discoverAndAddBackedUpAccounts()
···
           let account = Account(did: parsed.did, handle: inputText, pds: parsed.pds, jsonResponse: jsonData)
           modelContext.insert(account)
           print("[ContentView] Account inserted into modelContext")
+
+          // Auto-select the newly added account
+          selectedAccount = account.id
+          print("[ContentView] Auto-selected new account: \(account.id)")
         }
         showingAlert = false
         inputText = ""