Add SwiftUI iOS app shell

apps/ios/TeleTuiIOS/Sources/TeleTuiIOSApp/TeleTuiIOSApp.swift

@@ -0,0 +1,21 @@
+import SwiftUI
+import TeleTuiIOSCore
+
+@main
+struct TeleTuiIOSApp: App {
+    var body: some Scene {
+        WindowGroup {
+            RootView(store: makeStore())
+        }
+    }
+
+    private func makeStore() -> SessionStore {
+        let paths = AppStoragePaths()
+        let account = Account(
+            id: "fake",
+            displayName: "Fake",
+            databasePath: paths.databasePath(for: "fake")
+        )
+        return SessionStore(account: account, bridge: FakeSessionBridge(auth: .ready))
+    }
+}