```

feat: 添加自定义提醒功能并优化项目配置

- 添加 CustomReminder 模型支持自由文案周期性提醒功能
- 实现自定义提醒的 UI 界面，包括新建、编辑和列表展示
- 集成本地通知服务支持自定义提醒的时间触发
- 更新项目配置文件添加应用显示名称和加密声明
- 修正 iOS 部署目标版本从 26.0 到 17.0
- 修复 FileDownloader 中的线程安全问题
- 优化 ModelManifest 和 Localization 的并发安全性
- 扩展本地化字符串支持多语言提醒相关文本
- 调整项目支持平台范围仅保留 iphoneos 和 iphonesimulator
```

康康/Features/Me/CustomReminderEditSheet.swift

@@ -0,0 +1,186 @@
+import SwiftUI
+import SwiftData
+
+/// 自由周期提醒的创建 / 编辑表单。
+/// `reminder == nil` 为新建;否则为编辑(多一个删除按钮)。
+/// 本地 @State 暂存,保存时才写 SwiftData + 调度通知;取消即丢弃。
+struct CustomReminderEditSheet: View {
+    @Environment(\.modelContext) private var ctx
+    @Environment(\.dismiss) private var dismiss
+
+    /// nil = 新建模式。
+    let reminder: CustomReminder?
+
+    @State private var title = ""
+    @State private var note = ""
+    @State private var pickedTime: Date = .now
+    @State private var weekdays: Set<Int> = Set(1...7)
+    @State private var hydrated = false
+    @State private var showAuthDeniedAlert = false
+
+    init(reminder: CustomReminder? = nil) {
+        self.reminder = reminder
+    }
+
+    private var isEditing: Bool { reminder != nil }
+    private var trimmedTitle: String {
+        title.trimmingCharacters(in: .whitespacesAndNewlines)
+    }
+    private var canSave: Bool { !trimmedTitle.isEmpty && !weekdays.isEmpty }
+
+    var body: some View {
+        NavigationStack {
+            Form {
+                Section {
+                    TextField(String(appLoc: "做点什么?例:跑步5公里 / 吃2片护肝片"),
+                              text: $title, axis: .vertical)
+                        .lineLimit(1...3)
+                    TextField(String(appLoc: "备注(可选)"), text: $note, axis: .vertical)
+                        .lineLimit(1...3)
+                        .foregroundStyle(Tj.Palette.text2)
+                }
+
+                Section {
+                    DatePicker(String(appLoc: "时间"), selection: $pickedTime,
+                               displayedComponents: .hourAndMinute)
+                }
+
+                Section {
+                    weekdayRow
+                } header: {
+                    Text("重复")
+                }
+
+                if isEditing {
+                    Section {
+                        Button(role: .destructive) { deleteReminder() } label: {
+                            Label(String(appLoc: "删除提醒"), systemImage: "trash")
+                        }
+                    }
+                }
+            }
+            .scrollContentBackground(.hidden)
+            .background(Tj.Palette.sand.ignoresSafeArea())
+            .navigationTitle(isEditing ? String(appLoc: "编辑提醒") : String(appLoc: "新建提醒"))
+            .navigationBarTitleDisplayMode(.inline)
+            .toolbar {
+                ToolbarItem(placement: .topBarLeading) {
+                    Button(String(appLoc: "取消")) { dismiss() }
+                }
+                ToolbarItem(placement: .topBarTrailing) {
+                    Button(String(appLoc: "保存")) { save() }
+                        .fontWeight(.semibold)
+                        .disabled(!canSave)
+                }
+            }
+            .onAppear(perform: hydrate)
+            .alert(String(appLoc: "通知未开启"), isPresented: $showAuthDeniedAlert) {
+                Button(String(appLoc: "好")) { dismiss() }
+            } message: {
+                Text("提醒已保存,但系统通知权限未开启,到点不会弹出。请在「设置 · 通知 · 康康」中允许。")
+            }
+        }
+    }
+
+    // MARK: - 周几选择(与 RemindersListView 同款)
+
+    private var weekdayRow: some View {
+        let names = [
+            String(appLoc: "一"), String(appLoc: "二"), String(appLoc: "三"),
+            String(appLoc: "四"), String(appLoc: "五"), String(appLoc: "六"),
+            String(appLoc: "日"),
+        ]
+        let values = [2, 3, 4, 5, 6, 7, 1]
+        return HStack(spacing: 6) {
+            ForEach(Array(values.enumerated()), id: \.offset) { idx, w in
+                let on = weekdays.contains(w)
+                Button {
+                    if on { weekdays.remove(w) } else { weekdays.insert(w) }
+                } label: {
+                    Text(names[idx])
+                        .font(.system(size: 13, weight: on ? .semibold : .regular))
+                        .foregroundStyle(on ? Tj.Palette.paper : Tj.Palette.text)
+                        .frame(maxWidth: .infinity, minHeight: 30)
+                        .background(
+                            RoundedRectangle(cornerRadius: 8, style: .continuous)
+                                .fill(on ? Tj.Palette.ink : Tj.Palette.paper)
+                        )
+                        .overlay(
+                            RoundedRectangle(cornerRadius: 8, style: .continuous)
+                                .strokeBorder(Tj.Palette.line, lineWidth: on ? 0 : 1)
+                        )
+                }
+                .buttonStyle(.plain)
+            }
+        }
+        .listRowBackground(Color.clear)
+    }
+
+    // MARK: - 数据
+
+    private func hydrate() {
+        guard !hydrated else { return }
+        hydrated = true
+        if let r = reminder {
+            title = r.title
+            note = r.note
+            weekdays = Set(r.weekdays)
+            pickedTime = Calendar.current.date(
+                bySettingHour: r.hour, minute: r.minute, second: 0, of: .now
+            ) ?? .now
+        }
+    }
+
+    private func save() {
+        guard canSave else { return }
+        let cal = Calendar.current
+        let hour = cal.component(.hour, from: pickedTime)
+        let minute = cal.component(.minute, from: pickedTime)
+        let sortedDays = weekdays.sorted()
+
+        let target: CustomReminder
+        if let r = reminder {
+            r.title = trimmedTitle
+            r.note = note.trimmingCharacters(in: .whitespacesAndNewlines)
+            r.hour = hour
+            r.minute = minute
+            r.weekdays = sortedDays
+            r.updatedAt = .now
+            target = r
+        } else {
+            let new = CustomReminder(
+                title: trimmedTitle,
+                note: note.trimmingCharacters(in: .whitespacesAndNewlines),
+                hour: hour,
+                minute: minute,
+                weekdays: sortedDays
+            )
+            ctx.insert(new)
+            target = new
+        }
+        try? ctx.save()
+
+        Task { @MainActor in
+            let state = await ReminderService.requestAuthorization()
+            await ReminderService.sync(target)
+            if state == .denied {
+                showAuthDeniedAlert = true
+            } else {
+                dismiss()
+            }
+        }
+    }
+
+    private func deleteReminder() {
+        guard let r = reminder else { return }
+        ReminderService.cancel(customId: r.id)
+        ctx.delete(r)
+        try? ctx.save()
+        dismiss()
+    }
+}
+
+#Preview("新建") {
+    CustomReminderEditSheet()
+        .modelContainer(for: [CustomReminder.self], inMemory: true)
+}