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/Features/Timeline/DateSection.swift

@@ -9,11 +9,11 @@ nonisolated enum DateSection: Hashable {
 
     var label: String {
         switch self {
-        case .today:        return "今天"
-        case .yesterday:    return "昨天"
-        case .thisWeek:     return "本周"
-        case .thisMonth:    return "本月"
-        case .year(let y):  return "\(y) 年"
+        case .today:        return String(appLoc: "今天")
+        case .yesterday:    return String(appLoc: "昨天")
+        case .thisWeek:     return String(appLoc: "本周")
+        case .thisMonth:    return String(appLoc: "本月")
+        case .year(let y):  return String(appLoc: "\(y) 年")
         }
     }
 
@@ -68,10 +68,10 @@ func formatDuration(_ interval: TimeInterval) -> String {
     let hours = (totalMinutes % (60 * 24)) / 60
     let minutes = totalMinutes % 60
 
-    if days > 0 && hours > 0 { return "\(days) 天 \(hours) 小时" }
-    if days > 0 { return "\(days) 天" }
-    if hours > 0 && minutes > 0 { return "\(hours) 小时 \(minutes) 分" }
-    if hours > 0 { return "\(hours) 小时" }
-    if minutes > 0 { return "\(minutes) 分钟" }
-    return "刚刚"
+    if days > 0 && hours > 0 { return String(appLoc: "\(days) 天 \(hours) 小时") }
+    if days > 0 { return String(appLoc: "\(days) 天") }
+    if hours > 0 && minutes > 0 { return String(appLoc: "\(hours) 小时 \(minutes) 分") }
+    if hours > 0 { return String(appLoc: "\(hours) 小时") }
+    if minutes > 0 { return String(appLoc: "\(minutes) 分钟") }
+    return String(appLoc: "刚刚")
 }

康康/Features/Timeline/TimelineEntry.swift

@@ -8,10 +8,10 @@ enum TimelineKind: String, CaseIterable, Identifiable {
 
     var label: String {
         switch self {
-        case .indicator: return "指标"
-        case .report:    return "报告"
-        case .symptom:   return "症状"
-        case .diary:     return "日记"
+        case .indicator: return String(appLoc: "指标")
+        case .report:    return String(appLoc: "报告")
+        case .symptom:   return String(appLoc: "症状")
+        case .diary:     return String(appLoc: "日记")
         }
     }
 
@@ -90,8 +90,8 @@ struct TimelineEntry: Identifiable, Hashable {
             id: "bp-\(sys.persistentModelID)-\(dia.persistentModelID)",
             kind: .indicator,
             date: sys.capturedAt,
-            title: "血压",
-            subtitle: "长期监测",
+            title: String(appLoc: "血压"),
+            subtitle: String(appLoc: "长期监测"),
             trailing: "\(sys.value)/\(dia.value) mmHg" + (abnormal ? " ↑" : ""),
             trailingIsAlert: abnormal,
             isOngoing: false
@@ -105,8 +105,8 @@ struct TimelineEntry: Identifiable, Hashable {
             kind: .report,
             date: r.reportDate,
             title: r.title,
-            subtitle: "\(r.type.label) · 共 \(r.pageCount) 页",
-            trailing: abnormal > 0 ? "\(abnormal) 项偏高" : nil,
+            subtitle: "\(r.type.label) · " + String(appLoc: "共 \(r.pageCount) 页"),
+            trailing: abnormal > 0 ? String(appLoc: "\(abnormal) 项偏高") : nil,
             trailingIsAlert: abnormal > 0,
             isOngoing: false
         )
@@ -118,7 +118,7 @@ struct TimelineEntry: Identifiable, Hashable {
             kind: .diary,
             date: d.createdAt,
             title: d.content.firstLine(),
-            subtitle: "文字日记",
+            subtitle: String(appLoc: "文字日记"),
             trailing: nil,
             trailingIsAlert: false,
             isOngoing: false
@@ -131,11 +131,11 @@ struct TimelineEntry: Identifiable, Hashable {
         let subtitle: String
         let trailing: String?
         if ongoing {
-            subtitle = "症状 · 持续中"
-            trailing = "持续 \(formatDuration(s.duration))"
+            subtitle = String(appLoc: "症状 · 持续中")
+            trailing = String(appLoc: "持续 \(formatDuration(s.duration))")
         } else {
-            subtitle = "症状 · 已结束"
-            trailing = "持续 \(formatDuration(s.duration))"
+            subtitle = String(appLoc: "症状 · 已结束")
+            trailing = String(appLoc: "持续 \(formatDuration(s.duration))")
         }
         return TimelineEntry(
             id: "symptom-\(s.persistentModelID)",
@@ -151,9 +151,9 @@ struct TimelineEntry: Identifiable, Hashable {
 
     private static func typeSubtitle(for i: Indicator) -> String {
         if let report = i.report {
-            return "指标 · \(report.title)"
+            return String(appLoc: "指标 · \(report.title)")
         }
-        return "异常项快拍"
+        return String(appLoc: "异常项快拍")
     }
 
     private static func indicatorValue(_ i: Indicator) -> String {
@@ -175,6 +175,6 @@ private extension String {
             let s = String(line)
             return s.count > 40 ? String(s.prefix(40)) + "…" : s
         }
-        return trimmed.isEmpty ? "(空日记)" : trimmed
+        return trimmed.isEmpty ? String(appLoc: "(空日记)") : trimmed
     }
 }

康康/Features/Timeline/TimelineRow.swift

@@ -56,18 +56,12 @@ extension Date {
             return self.formatted(date: .omitted, time: .shortened)
         }
         if cal.isDateInYesterday(self) {
-            return "昨天 " + self.formatted(date: .omitted, time: .shortened)
+            return String(appLoc: "昨天") + " " + self.formatted(date: .omitted, time: .shortened)
         }
         let now = Date.now
         if cal.isDate(self, equalTo: now, toGranularity: .year) {
-            let f = DateFormatter()
-            f.locale = Locale(identifier: "zh_CN")
-            f.dateFormat = "M 月 d 日"
-            return f.string(from: self)
+            return self.formatted(.dateTime.month().day())
         }
-        let f = DateFormatter()
-        f.locale = Locale(identifier: "zh_CN")
-        f.dateFormat = "yyyy 年 M 月 d 日"
-        return f.string(from: self)
+        return self.formatted(.dateTime.year().month().day())
     }
 }