ios: initial commit

ios/Packages/Sybil/Sources/Sybil/SplitView.swift

@@ -1,19 +1,38 @@
-//
-//  SplitView.swift
-//  Sybil
-//
-//  Created by James Magahern on 2/19/26.
-//
-
 import SwiftUI
 
-public struct SplitView: View
-{
-    public init() {
-        
-    }
-    
+public struct SplitView: View {
+    @State private var viewModel = SybilViewModel()
+    @Environment(\.horizontalSizeClass) private var horizontalSizeClass
+
+    public init() {}
+
     public var body: some View {
-        Text("Not Yet Implemented: replace me.")
+        ZStack {
+            SybilTheme.backgroundGradient
+                .ignoresSafeArea()
+
+            if viewModel.isCheckingSession {
+                ProgressView("Checking session…")
+                    .tint(SybilTheme.primary)
+                    .foregroundStyle(SybilTheme.textMuted)
+            } else if !viewModel.isAuthenticated {
+                SybilConnectionView(viewModel: viewModel)
+                    .padding()
+            } else if horizontalSizeClass == .compact {
+                SybilPhoneShellView(viewModel: viewModel)
+            } else {
+                NavigationSplitView {
+                    SybilSidebarView(viewModel: viewModel)
+                        .navigationTitle("Sybil")
+                } detail: {
+                    SybilWorkspaceView(viewModel: viewModel)
+                }
+                .navigationSplitViewStyle(.balanced)
+                .tint(SybilTheme.primary)
+            }
+        }
+        .task {
+            await viewModel.bootstrap()
+        }
     }
 }