Add iPad support, auto-pinning, and comprehensive logging

- Adaptive iPhone/iPad layout with NavigationSplitView sidebar
- Auto-detect SSL-pinned domains, fall back to passthrough
- Certificate install via local HTTP server (Safari profile flow)
- App Group-backed CA, per-domain leaf cert LRU cache
- DB-backed config repository, Darwin notification throttling
- Rules engine, breakpoint rules, pinned domain tracking
- os.Logger instrumentation across tunnel/proxy/mitm/capture/cert/rules/db/ipc/ui
- Fix dyld framework embed, race conditions, thread safety

App/ContentView.swift

@@ -2,46 +2,131 @@ import SwiftUI
 
 struct ContentView: View {
     @Environment(AppState.self) private var appState
+    @Environment(\.horizontalSizeClass) private var horizontalSizeClass
 
-    enum Tab: Hashable {
-        case home, pin, compose, more
+    enum Tab: String, Hashable, CaseIterable {
+        case home = "Home"
+        case pin = "Pin"
+        case compose = "Compose"
+        case more = "More"
+
+        var icon: String {
+            switch self {
+            case .home: return "house.fill"
+            case .pin: return "pin.fill"
+            case .compose: return "square.and.pencil"
+            case .more: return "ellipsis.circle.fill"
+            }
+        }
     }
 
     @State private var selectedTab: Tab = .home
 
     var body: some View {
-        TabView(selection: $selectedTab) {
-            NavigationStack {
-                HomeView()
+        Group {
+            if horizontalSizeClass == .regular {
+                iPadLayout
+            } else {
+                iPhoneLayout
             }
-            .tabItem {
-                Label("Home", systemImage: "house.fill")
+        }
+        .overlay {
+            if appState.isLocked {
+                lockScreen
             }
-            .tag(Tab.home)
-
-            NavigationStack {
-                PinView()
-            }
-            .tabItem {
-                Label("Pin", systemImage: "pin.fill")
-            }
-            .tag(Tab.pin)
-
-            NavigationStack {
-                ComposeListView()
-            }
-            .tabItem {
-                Label("Compose", systemImage: "square.and.pencil")
-            }
-            .tag(Tab.compose)
-
-            NavigationStack {
-                MoreView()
-            }
-            .tabItem {
-                Label("More", systemImage: "ellipsis.circle.fill")
-            }
-            .tag(Tab.more)
         }
     }
+
+    private var iPhoneLayout: some View {
+        TabView(selection: $selectedTab) {
+            NavigationStack { HomeView() }
+                .tabItem { Label("Home", systemImage: "house.fill") }
+                .tag(Tab.home)
+
+            NavigationStack { PinView() }
+                .tabItem { Label("Pin", systemImage: "pin.fill") }
+                .tag(Tab.pin)
+
+            NavigationStack { ComposeListView() }
+                .tabItem { Label("Compose", systemImage: "square.and.pencil") }
+                .tag(Tab.compose)
+
+            NavigationStack { MoreView() }
+                .tabItem { Label("More", systemImage: "ellipsis.circle.fill") }
+                .tag(Tab.more)
+        }
+    }
+
+    private var iPadLayout: some View {
+        NavigationSplitView {
+            iPadSidebar
+        } detail: {
+            iPadDetail
+        }
+    }
+
+    private var iPadSidebar: some View {
+        VStack(spacing: 4) {
+            ForEach(Tab.allCases, id: \.self) { tab in
+                iPadSidebarButton(tab: tab)
+            }
+            Spacer()
+        }
+        .padding(.top, 8)
+        .navigationTitle("Proxy")
+    }
+
+    private func iPadSidebarButton(tab: Tab) -> some View {
+        Button {
+            selectedTab = tab
+        } label: {
+            Label(tab.rawValue, systemImage: tab.icon)
+                .frame(maxWidth: .infinity, alignment: .leading)
+                .padding(.horizontal, 20)
+                .padding(.vertical, 14)
+                .background(
+                    selectedTab == tab ? Color.accentColor.opacity(0.12) : Color.clear,
+                    in: RoundedRectangle(cornerRadius: 10)
+                )
+                .foregroundStyle(selectedTab == tab ? Color.accentColor : Color.primary)
+        }
+        .buttonStyle(.plain)
+        .padding(.horizontal, 12)
+    }
+
+    @ViewBuilder
+    private var iPadDetail: some View {
+        NavigationStack {
+            switch selectedTab {
+            case .home: HomeView()
+            case .pin: PinView()
+            case .compose: ComposeListView()
+            case .more: MoreView()
+            }
+        }
+    }
+
+    private var lockScreen: some View {
+        ZStack {
+            Color(.systemBackground).ignoresSafeArea()
+            VStack(spacing: 24) {
+                Image(systemName: "lock.fill")
+                    .font(.system(size: 48))
+                    .foregroundStyle(.secondary)
+                Text("Unlock Proxy")
+                    .font(.title2.weight(.semibold))
+                Button {
+                    appState.authenticate()
+                } label: {
+                    Text("Unlock")
+                        .font(.headline)
+                        .frame(maxWidth: 300)
+                        .padding()
+                        .background(.blue, in: RoundedRectangle(cornerRadius: 12))
+                        .foregroundStyle(.white)
+                }
+            }
+        }
+        .onAppear { appState.authenticate() }
+    }
 }