feat(ios): refine native interface and app icon

Unify bottom actions, selection controls, navigation structure, spacing, and theme colors across iOS pages. Replace the app icon with a higher-contrast native-style asset and include its source SVG.

apps/ios/Sources/MultiSimAdmin/Features/Notifications/NotificationsView.swift

@@ -15,9 +15,7 @@ struct NotificationsView: View {
   }
 
   var body: some View {
-    ZStack {
-      AITheme.canvas.ignoresSafeArea()
-      ScrollView {
+    ScrollView {
         LazyVStack(spacing: 12) {
           if let actionMessage = model.actionMessage {
             AIStatusBanner(
@@ -44,18 +42,29 @@ struct NotificationsView: View {
           }
         }
         .padding(16)
-      }
+        .padding(.bottom, 8)
     }
-    .navigationTitle("通知中心")
     .aiBottomActionBar {
-      Button {
-        Task { await model.retryAll() }
-      } label: {
-        Label("立即投递", systemImage: "paperplane")
-      }
-      .buttonStyle(AIButtonStyle(kind: .primary, size: .regular, fillsWidth: true))
-      .disabled(model.isLoading)
+        Button {
+          Task { await model.retryAll() }
+        } label: {
+          HStack(spacing: 8) {
+            if model.isRetryingAll {
+              ProgressView()
+                .controlSize(.small)
+            }
+            Text(
+              model.isRetryingAll
+                ? "投递中"
+                : (model.overview?.queue.total == 0 ? "暂无待投递" : "立即投递")
+            )
+          }
+        }
+        .buttonStyle(AIButtonStyle(kind: .primary, size: .regular, fillsWidth: true))
+        .disabled(model.isLoading || model.isRetryingAll || model.overview?.queue.total == 0)
     }
+    .background(AITheme.canvas.ignoresSafeArea())
+    .navigationTitle("通知中心")
     .confirmationDialog(
       "删除这条通知队列记录？操作不可恢复。",
       isPresented: Binding(
@@ -176,13 +185,12 @@ struct NotificationsView: View {
         }
       } else {
         ForEach(overview.queue.items) { item in
-          AICard {
-            AIListCard(
-              title: eventTypeLabel(item.eventType),
-              subtitle: "\(item.instanceName) · \(timestampText(item.createdAt))",
-              status: statusLabel(item.status),
-              statusTint: statusTint(item.status)
-            ) {
+          AIListCard(
+            title: eventTypeLabel(item.eventType),
+            subtitle: "\(item.instanceName) · \(timestampText(item.createdAt))",
+            status: statusLabel(item.status),
+            statusTint: statusTint(item.status)
+          ) {
             HStack(spacing: 8) {
               Button {
                 Task { await model.retryQueue(item) }
@@ -190,27 +198,17 @@ struct NotificationsView: View {
                 Label("重试", systemImage: "arrow.clockwise")
               }
               .buttonStyle(
-                AIButtonStyle(
-                  kind: .secondary,
-                  size: .compact,
-                  fixedWidth: AITheme.listActionButtonWidth
-                )
+                AIButtonStyle(kind: .secondary, size: .compact, fillsWidth: true)
               )
-              .disabled(model.busyQueueID == item.id)
+              .disabled(model.busyQueueID != nil)
 
               Button {
                 pendingDeleteQueueID = item.id
               } label: {
                 Label("删除", systemImage: "trash")
               }
-              .buttonStyle(
-                AIButtonStyle(
-                  kind: .danger,
-                  size: .compact,
-                  fixedWidth: AITheme.listActionButtonWidth
-                )
-              )
-            }
+              .buttonStyle(AIButtonStyle(kind: .danger, size: .compact, fillsWidth: true))
+              .disabled(model.busyQueueID != nil)
             }
           }
         }