feat(ios): simplify navigation and ship 0.2.0

Move diagnostics into settings, remove the app-local notification module, unify the global theme switcher, refine privacy copy and the instance detail experience, and rebuild the app icon.

apps/ios/Sources/MultiSimAdmin/Features/Settings/SettingsView.swift

@@ -2,6 +2,7 @@ import SwiftUI
 
 struct SettingsView: View {
   @StateObject private var model: SettingsViewModel
+  @ObservedObject private var themeStore = ThemeStore.shared
   @State private var showsClearDialog = false
 
   init(model: SettingsViewModel? = nil) {
@@ -20,6 +21,7 @@ struct SettingsView: View {
         }
 
         runtimeCard
+        themeCard
         storageCard
         securityCard
         dangerZoneCard
@@ -75,24 +77,54 @@ struct SettingsView: View {
     }
   }
 
-  private var storageCard: some View {
+  private var themeCard: some View {
     AICard {
       VStack(alignment: .leading, spacing: 12) {
-        AISectionTitle("本地数据", systemImage: "externaldrive")
-        AIKeyValueRow("存储位置", value: "仅保存在本机应用沙盒")
-        AIKeyValueRow("当前占用", value: model.storageLabel)
+        AISectionTitle("外观", systemImage: "circle.lefthalf.filled", detail: themeStore.mode.label)
+        AISegmentedControl(
+          "主题模式",
+          selection: Binding(
+            get: { themeStore.mode },
+            set: { themeStore.set($0) }
+          ),
+          options: ThemeMode.allCases.map { (value: $0, title: $0.label) }
+        )
       }
     }
   }
 
+  private var storageCard: some View {
+    AICard {
+      NavigationLink {
+        LogsView()
+      } label: {
+        VStack(alignment: .leading, spacing: 12) {
+          HStack(spacing: 10) {
+            AISectionTitle("本地数据", systemImage: "externaldrive")
+              .frame(maxWidth: .infinity, alignment: .leading)
+            Image(systemName: "chevron.right")
+              .font(.footnote.weight(.semibold))
+              .foregroundStyle(AITheme.muted)
+              .accessibilityHidden(true)
+          }
+          AIKeyValueRow("数据位置", value: "仅保存在本机设备")
+          AIKeyValueRow("当前占用", value: model.storageLabel)
+        }
+      }
+      .buttonStyle(.plain)
+      .accessibilityHint("进入日志与诊断")
+    }
+  }
+
   private var securityCard: some View {
     AICard {
       VStack(alignment: .leading, spacing: 12) {
-        AISectionTitle("隐私与安全", systemImage: "lock.shield")
-        AIKeyValueRow("实例密码", value: "保存在本机应用沙盒")
-        AIKeyValueRow("登录会话", value: "仅保存在内存")
+        AISectionTitle("隐私与数据", systemImage: "lock.shield")
+        AIKeyValueRow("节点信息", value: "仅保存在本机设备")
+        AIKeyValueRow("实例密码", value: "保存在本地数据文件中")
+        AIKeyValueRow("登录会话", value: "应用关闭后自动清除")
         AIStatusBanner(
-          "实例凭据只保存在本机应用沙盒，登录会话只保留在内存中，应用关闭后自动失效。",
+          "节点地址、实例密码和运行数据都保存在本机。应用只连接你添加的节点，登录会话关闭应用后即被清除。",
           tint: AITheme.primary,
           systemImage: "shield.checkered"
         )