feat(ios): add ClawdisNode app scaffold

apps/ios/Sources/Screen/ScreenWebView.swift

@@ -0,0 +1,15 @@
+import ClawdisNodeKit
+import SwiftUI
+import WebKit
+
+struct ScreenWebView: UIViewRepresentable {
+    @ObservedObject var controller: ScreenController
+
+    func makeUIView(context: Context) -> WKWebView {
+        self.controller.webView
+    }
+
+    func updateUIView(_ webView: WKWebView, context: Context) {
+        // State changes are driven by ScreenController.
+    }
+}