feat(ios): IOS-M1-03 消息页面增强

- NotificationListView 改为按时间段分组：今天/本周/更早
- 新增 6 种消息类型图标（导入完成/失败/测验/AI/订阅/系统）
- 右上角增加「全部已读」按钮
- 未读蓝点标识

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

AIStudyApp/AIStudyApp/Features/Profile/NotificationListView.swift

@@ -5,59 +5,92 @@ struct NotificationListView: View {
     @State private var isLoading = false
     @State private var isRefreshing = false
 
+    private var todayItems: [NotificationItem] {
+        notifications.filter { isToday($0.createdAt) }
+    }
+    private var weekItems: [NotificationItem] {
+        notifications.filter { !isToday($0.createdAt) && isThisWeek($0.createdAt) }
+    }
+    private var olderItems: [NotificationItem] {
+        notifications.filter { !isThisWeek($0.createdAt) }
+    }
+
     var body: some View {
         ZStack {
             Color.zxBg0.ignoresSafeArea()
             ScrollView {
                 VStack(spacing: 0) {
                     if isLoading && notifications.isEmpty {
-                        VStack(spacing: 12) {
+                        VStack(spacing: 12) { ProgressView().tint(Color.zxPurple); Text("加载中…").font(.system(size: 13)).foregroundColor(Color.zxF04) }.padding(.top, 120)
-                            ZXLoadingView(size: 36, lineWidth: 3)
-                            Text("加载中…").font(.system(size: 13)).foregroundColor(Color.zxF04)
-                        }.padding(.top, 120)
                     } else if notifications.isEmpty {
-                        VStack(spacing: 12) {
+                        VStack(spacing: 12) { Image(systemName: "bell.slash").font(.system(size: 40)).foregroundColor(Color.zxF03); Text("暂无通知").font(.system(size: 14, weight: .semibold)).foregroundColor(Color.zxF03) }.padding(.top, 120)
-                            Image(systemName: "bell.slash").font(.system(size: 40)).foregroundColor(Color.zxF03)
-                            Text("暂无通知").font(.system(size: 14, weight: .semibold)).foregroundColor(Color.zxF03)
-                        }.padding(.top, 120)
                     } else {
-                        ForEach(Array(notifications.enumerated()), id: \.offset) { i, n in
+                        if !todayItems.isEmpty { sectionView("今天", items: todayItems) }
-                            ZXNotificationItemRow(item: n) {
+                        if !weekItems.isEmpty { sectionView("本周", items: weekItems) }
-                                Task { _ = try? await NotificationService.shared.markRead(id: n.id) }
+                        if !olderItems.isEmpty { sectionView("更早", items: olderItems) }
-                            }
-                            if i < notifications.count - 1 {
-                                ZXSettingDivider()
-                            }
-                        }
                     }
-                }
+                }.padding(.bottom, 100)
-                .background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius: 20))
-                .overlay(RoundedRectangle(cornerRadius: 20).stroke(Color.zxBorder006, lineWidth: 1))
-                .padding(.horizontal, 20).padding(.top, 8).padding(.bottom, 100)
             }
             .scrollIndicators(.hidden)
             .zxPullToRefresh { await refresh() }
         }
+        .navigationTitle("消息中心")
         .navigationBarTitleDisplayMode(.inline).animatedTabBarHide()
         .toolbarBackground(.hidden, for: .navigationBar)
+        .toolbar {
+            ToolbarItem(placement: .topBarTrailing) {
+                Button {
+                    Task {
+                        let _ = try? await NotificationService.shared.markAllRead()
+                        await loadNotifications()
+                    }
+                } label: {
+                    Text("全部已读").font(.system(size: 13))
+                }
+            }
+        }
         .task { await loadNotifications() }
     }
 
+    private func sectionView(_ title: String, items: [NotificationItem]) -> some View {
+        VStack(alignment: .leading, spacing: 0) {
+            Text(title).font(.system(size: 12, weight: .semibold)).foregroundColor(Color.zxF035).padding(.horizontal, 20).padding(.top, 16).padding(.bottom, 8)
+            VStack(spacing: 0) {
+                ForEach(Array(items.enumerated()), id: \.offset) { i, n in
+                    ZXNotificationItemRow(item: n) {
+                        Task { _ = try? await NotificationService.shared.markRead(id: n.id) }
+                    }
+                    if i < items.count - 1 { ZXSettingDivider() }
+                }
+            }
+            .background(Color.zxFill004).clipShape(RoundedRectangle(cornerRadius: 20))
+            .overlay(RoundedRectangle(cornerRadius: 20).stroke(Color.zxBorder006, lineWidth: 1))
+            .padding(.horizontal, 20)
+        }
+    }
+
     private func loadNotifications() async {
         isLoading = true
-        do {
+        do { notifications = try await NotificationService.shared.list() } catch {}
-            notifications = try await NotificationService.shared.list()
-        } catch { /* keep empty state */ }
         isLoading = false
     }
 
     private func refresh() async {
         isRefreshing = true
-        do {
+        do { notifications = try await NotificationService.shared.list() } catch {}
-            notifications = try await NotificationService.shared.list()
-        } catch {}
         isRefreshing = false
     }
+
+    private func isToday(_ dateStr: String?) -> Bool {
+        guard let d = dateStr else { return false }
+        let today = ISO8601DateFormatter().string(from: Date())
+        return d.prefix(10) == today.prefix(10)
+    }
+
+    private func isThisWeek(_ dateStr: String?) -> Bool {
+        guard let d = dateStr, let date = ISO8601DateFormatter().date(from: String(d.prefix(19)) + "Z") else { return false }
+        return Date().timeIntervalSince(date) < 7 * 86400
+    }
 }
 
 struct ZXNotificationItemRow: View {
@@ -66,18 +99,24 @@ struct ZXNotificationItemRow: View {
 
     private var iconName: String {
         switch item.type {
-        case "review": return "arrow.triangle.2.circlepath"
+        case "review", "review_reminder": return "arrow.triangle.2.circlepath"
-        case "ai_analysis": return "sparkles"
+        case "import_complete": return "doc.fill.badge.ellipsis"
+        case "import_failed": return "doc.fill.badge.xmark"
+        case "quiz_ready": return "questionmark.circle"
+        case "ai_analysis", "ai_complete": return "brain.head.profile"
         case "streak": return "flame.fill"
+        case "subscription", "subscription_update": return "bell.fill"
+        case "system": return "info.circle"
         default: return "bell.fill"
         }
     }
 
     private var iconColor: Color {
         switch item.type {
-        case "review": return Color.zxOrange
+        case "review", "review_reminder": return Color.zxOrange
-        case "ai_analysis": return Color.zxPurple
+        case "ai_analysis", "ai_complete": return Color.zxPurple
         case "streak": return Color.zxGreen
+        case "import_failed": return Color.zxCoral
         default: return Color.zxAccent
         }
     }
@@ -90,18 +129,23 @@ struct ZXNotificationItemRow: View {
                 VStack(alignment: .leading, spacing: 4) {
                     HStack {
                         Text(item.title).font(.system(size: 14, weight: .semibold)).foregroundColor(Color.zxF0)
-                        if item.readAt == nil {
+                        if item.readAt == nil { Circle().fill(Color.zxPurple).frame(width: 6, height: 6) }
-                            Circle().fill(Color.zxPurple).frame(width: 6, height: 6)
-                        }
                     }
-                    Text(item.content ?? "").font(.system(size: 12)).foregroundColor(Color.zxF04).lineLimit(2)
+                    if let content = item.content { Text(content).font(.system(size: 12)).foregroundColor(Color.zxF04).lineLimit(2) }
                     if let createdAt = item.createdAt {
-                        Text(createdAt.prefix(10).description).font(.system(size: 10)).foregroundColor(Color.zxF03)
+                        Text(formatDate(createdAt)).font(.system(size: 10)).foregroundColor(Color.zxF03)
                     }
                 }
                 Spacer()
-                Image(systemName: "chevron.right").font(.system(size: 12)).foregroundColor(Color.zxF03)
             }.padding(.horizontal, 16).padding(.vertical, 14)
         }.foregroundColor(.primary)
     }
+
+    private func formatDate(_ iso: String) -> String {
+        if let d = ISO8601DateFormatter().date(from: String(iso.prefix(19)) + "Z") {
+            let f = DateFormatter(); f.locale = Locale(identifier: "zh_CN")
+            f.dateFormat = "MM-dd HH:mm"; return f.string(from: d)
+        }
+        return String(iso.prefix(10))
+    }
 }