feat(ios): refine native ui controls

apps/ios/Sources/MultiSimAdmin/Features/Logs/LogsView.swift

@@ -9,6 +9,7 @@ struct LogsView: View {
 
     @StateObject private var model: LogsViewModel
     @State private var tab: Tab = .runtime
+    @State private var showsPruneDialog = false
 
     init(model: LogsViewModel? = nil) {
         _model = StateObject(wrappedValue: model ?? DefaultContainer.makeLogsModel())
@@ -54,10 +55,22 @@ struct LogsView: View {
                 } label: {
                     Label("刷新", systemImage: "arrow.clockwise")
                 }
-                .buttonStyle(AIButtonStyle(kind: .primary, size: .regular))
+                .buttonStyle(AIButtonStyle(kind: .secondary, size: .regular))
                 .disabled(model.isLoading)
             }
         }
+        .confirmationDialog(
+            "清理 7 天前的连接日志？操作不可恢复。",
+            isPresented: $showsPruneDialog,
+            titleVisibility: .visible
+        ) {
+            Button("清理连接日志", role: .destructive) {
+                Task {
+                    _ = await model.pruneConnections(olderThanDays: 7)
+                }
+            }
+            Button("取消", role: .cancel) {}
+        }
         .refreshable {
             await model.refresh()
         }
@@ -81,16 +94,7 @@ struct LogsView: View {
 
     private var filterBar: some View {
         VStack(spacing: 10) {
-            TextField("搜索日志、错误码或实例", text: $model.searchText)
-                .textFieldStyle(.plain)
-                .padding(.horizontal, 12)
-                .frame(minHeight: AITheme.buttonHeight)
-                .background(AITheme.canvas)
-                .clipShape(RoundedRectangle(cornerRadius: AITheme.buttonRadius))
-                .overlay {
-                    RoundedRectangle(cornerRadius: AITheme.buttonRadius)
-                        .strokeBorder(AITheme.line)
-                }
+            AISearchField("搜索日志、错误码或实例", text: $model.searchText)
 
             Picker("实例", selection: $model.selectedInstanceID) {
                 Text("全部实例").tag(Optional<UUID>.none)
@@ -168,9 +172,7 @@ struct LogsView: View {
                 HStack {
                     sectionTitle("连接探测记录", detail: "\(model.filteredConnections.count) 条")
                     Button {
-                        Task {
-                            _ = await model.pruneConnections(olderThanDays: 7)
-                        }
+                        showsPruneDialog = true
                     } label: {
                         Label("清理", systemImage: "trash")
                     }