feat(capture): 统一报告捕获流程并集成视觉语言模型识别

- 替换 QuickCaptureFlow 和 ArchiveFlow 为 UnifiedCaptureFlow 统一流程
- 新增 VLSession 封装 Qwen2.5-VL 模型进行图像文本推理
- 实现 AIRuntime 中 VL 模型的准备和分析功能
- 添加 VLPrompts 定义体检化验单识别的 JSON 输出模板
- 创建 CaptureReviewForm 提供 VL 解析结果的可编辑表单界面
- 集成 VisionKit 文档扫描器支持真机多页文档扫描
- 为模拟器实现 PhotosPicker 回退方案选择已有照片
- 在 RootView 中统一使用 UnifiedCaptureFlow 处理快速和归档流程
- 添加 CustomMetricEditor 支持自定义监测指标的创建编辑删除
- 扩展 KangkangApp 模型配置以支持新数据类型
- 实现档案列表中症状结束功能通过时间线行点击触发

康康/Features/Trends/SeriesBucket.swift

@@ -36,6 +36,7 @@ extension SeriesBucket {
     /// `minPoints` 以下的系列不返回,默认 2(单点不画线)。
     static func build(from indicators: [Indicator],
                       profile: UserProfile? = nil,
+                      customMetrics: [CustomMonitorMetric] = [],
                       minPoints: Int = 2) -> [SeriesBucket] {
         var buckets: [String: [Indicator]] = [:]
         for i in indicators {
@@ -55,9 +56,15 @@ extension SeriesBucket {
         }
         for k in bpKeys { buckets.removeValue(forKey: k) }
 
+        let customByKey: [String: CustomMonitorMetric] = Dictionary(
+            uniqueKeysWithValues: customMetrics.map { ($0.seriesKey, $0) }
+        )
+
         for (key, items) in buckets {
             guard items.count >= minPoints else { continue }
-            if let bucket = buildSingle(key: key, items: items, profile: profile) {
+            if let bucket = buildSingle(key: key, items: items,
+                                        profile: profile,
+                                        custom: customByKey[key]) {
                 results.append(bucket)
             }
         }
@@ -67,15 +74,24 @@ extension SeriesBucket {
 
     private static func buildSingle(key: String,
                                     items: [Indicator],
-                                    profile: UserProfile?) -> SeriesBucket? {
+                                    profile: UserProfile?,
+                                    custom: CustomMonitorMetric? = nil) -> SeriesBucket? {
         let sorted = items.sorted { $0.capturedAt < $1.capturedAt }
         guard let latest = sorted.last else { return nil }
 
+        // 优先 custom,其次 builtin metric,最后 fallback 到 Indicator 自身
         let metric = monitorMetric(for: key)
         let field = metric?.fields.first { $0.seriesKey == key }
-        let title = metric?.displayName ?? sorted.first?.name ?? key
-        let unit = field?.unit ?? sorted.first?.unit ?? ""
-        let range = field.flatMap { metric?.effectiveRange(for: $0, profile: profile) }
+        let title = custom?.name
+            ?? metric?.displayName
+            ?? sorted.first?.name
+            ?? key
+        let unit = custom?.unit.nonEmptyOr(nil)
+            ?? field?.unit
+            ?? sorted.first?.unit
+            ?? ""
+        let range = custom?.referenceRange
+            ?? field.flatMap { metric?.effectiveRange(for: $0, profile: profile) }
 
         let line = SeriesLine(
             id: key,
@@ -151,3 +167,10 @@ extension SeriesBucket {
         }
     }
 }
+
+private extension String {
+    /// 空串 → fallback;非空 → 自身。
+    func nonEmptyOr(_ fallback: String?) -> String? {
+        trimmingCharacters(in: .whitespaces).isEmpty ? fallback : self
+    }
+}