feat: 国际化(i18n) en/ja/ko + App 内语言切换

主体:多语言支持(简体中文源 + 英/日/韩)
- 基础设施:Localizable.xcstrings(String Catalog,sourceLanguage=zh-Hans)
  + pbxproj developmentRegion/knownRegions 注册 en/ja/ko
- 全部硬编码 Locale("zh_CN") → Locale.current;中文 dateFormat → Date.FormatStyle(跟随系统)
- UI 中文字面量统一为 String(appLoc:)(显式绑定所选语言 bundle+locale,即时切换)
  Text 字面量走环境 \.locale + Bundle 重定向
- 549 个 catalog key 全部 en/ja/ko 翻译完成(0 未翻译)
- App 内语言切换:我的 → 语言(LanguageManager + 即时生效,无需重启)
- 双用预设(症状/监测指标/慢病)本地化:static→computed 避免缓存

注:本提交为 WIP,一并打包了并行进行的功能模块
(HealthExport 健康导出、Security/Face ID 锁、DiaryAssist 日记 AI 辅助)
及 App 图标、CLAUDE.md、docs/scripts。

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

康康/Models/Models.swift

@@ -10,11 +10,11 @@ enum ReportType: String, Codable, CaseIterable {
 
     var label: String {
         switch self {
-        case .checkup:      return "体检报告"
-        case .lab:          return "化验单"
-        case .imaging:      return "影像报告"
-        case .prescription: return "处方"
-        case .other:        return "其他"
+        case .checkup:      return String(appLoc: "体检报告")
+        case .lab:          return String(appLoc: "化验单")
+        case .imaging:      return String(appLoc: "影像报告")
+        case .prescription: return String(appLoc: "处方")
+        case .other:        return String(appLoc: "其他")
         }
     }
 }
@@ -250,12 +250,12 @@ final class MetricReminder {
     var isEveryDay: Bool { Set(weekdays) == Set(1...7) }
 
     var frequencyLabel: String {
-        if !enabled { return "已关闭" }
-        if isEveryDay { return "每天" }
-        if weekdays.isEmpty { return "未选日" }
-        let names = ["日", "一", "二", "三", "四", "五", "六"]
+        if !enabled { return String(appLoc: "已关闭") }
+        if isEveryDay { return String(appLoc: "每天") }
+        if weekdays.isEmpty { return String(appLoc: "未选日") }
+        let names = [String(appLoc: "日"), String(appLoc: "一"), String(appLoc: "二"), String(appLoc: "三"), String(appLoc: "四"), String(appLoc: "五"), String(appLoc: "六")]
         let sorted = weekdays.sorted()
-        return "每周 " + sorted.map { names[$0 - 1] }.joined()
+        return String(appLoc: "每周 ") + sorted.map { names[$0 - 1] }.joined()
     }
 
     var timeLabel: String {