```

feat(iOS): 更新MNN后端模型配置优化性能

将MNN主模型从Qwen3.5-4B(~2.64GiB)降级为Qwen3.5-2B(~1.1GiB)，因为4B版本
实测运行过慢，影响用户体验。iPhone17+/SME2设备使用2B模型，保留MLX
兜底方案用于模拟器和备用场景，确保AI推理性能和存储效率的平衡。
```

康康/Features/Timeline/IndicatorSeriesDetailView.swift

@@ -0,0 +1,457 @@
+import SwiftUI
+import SwiftData
+
+/// 一个指标的「同类组」标识。决定聚合详情里收哪些历次记录、跳哪个趋势 bucket。
+/// - `.series`:有 seriesKey 的长期监测指标(血糖/体重/...)。
+/// - `.bloodPressure`:血压(bp.systolic + bp.diastolic 合并成一对)。
+/// - `.lab`:无 seriesKey 的化验/手动指标,按 name+unit 归一化 key 聚合。
+enum IndicatorGroup: Identifiable, Hashable {
+    case series(key: String)
+    case bloodPressure
+    case lab(key: String)
+
+    var id: String {
+        switch self {
+        case .series(let k): return "series:\(k)"
+        case .bloodPressure: return "bp"
+        case .lab(let k):    return "lab:\(k)"
+        }
+    }
+
+    /// 从单条指标推断其所属同类组(与趋势页 SeriesBucket 的分组语义一致)。
+    static func of(_ i: Indicator) -> IndicatorGroup {
+        if let key = i.seriesKey, !key.isEmpty {
+            return key.hasPrefix("bp.") ? .bloodPressure : .series(key: key)
+        }
+        return .lab(key: SeriesBucket.normalizedKey(name: i.name, unit: i.unit))
+    }
+}
+
+/// 同类指标聚合详情:横向翻页看该指标的历次记录,底部可跳趋势图。
+/// 从「记录」页点指标条目进入。数据全部 @Query 实时,删除后翻页列表自动更新。
+struct IndicatorSeriesDetailView: View {
+    @Environment(\.dismiss) private var dismiss
+    @Environment(\.modelContext) private var ctx
+
+    let group: IndicatorGroup
+
+    @Query(sort: \Indicator.capturedAt, order: .reverse)
+    private var indicators: [Indicator]
+    @Query private var profiles: [UserProfile]
+    @Query private var customMetrics: [CustomMonitorMetric]
+
+    @State private var selection: String?
+    @State private var showTrend = false
+    @State private var showDeleteConfirm = false
+    @State private var evidenceTarget: Indicator?
+
+    // MARK: - 数据
+
+    /// 聚合详情里的一页:单值指标一条;血压一对。
+    private enum Record: Identifiable {
+        case single(Indicator)
+        case bp(sys: Indicator, dia: Indicator?)
+
+        var id: String {
+            switch self {
+            case .single(let i): return "\(i.persistentModelID)"
+            case .bp(let s, _):  return "bp-\(s.persistentModelID)"
+            }
+        }
+    }
+
+    /// 历次血压对:以 bp.systolic 为锚,按 ±5s 配 bp.diastolic(同 TimelineEntry 合并规则)。
+    private var bloodPressureRecords: [Record] {
+        let sysList = indicators
+            .filter { $0.seriesKey == "bp.systolic" }
+            .sorted { $0.capturedAt > $1.capturedAt }
+        var usedDia = Set<PersistentIdentifier>()
+        return sysList.map { sys in
+            let dia = indicators.first {
+                $0.seriesKey == "bp.diastolic" &&
+                !usedDia.contains($0.persistentModelID) &&
+                abs($0.capturedAt.timeIntervalSince(sys.capturedAt)) <= 5
+            }
+            if let dia { usedDia.insert(dia.persistentModelID) }
+            return .bp(sys: sys, dia: dia)
+        }
+    }
+
+    private var records: [Record] {
+        switch group {
+        case .bloodPressure:
+            return bloodPressureRecords
+        case .series(let key):
+            return indicators
+                .filter { $0.seriesKey == key }
+                .sorted { $0.capturedAt > $1.capturedAt }
+                .map(Record.single)
+        case .lab(let nk):
+            return indicators
+                .filter {
+                    ($0.seriesKey ?? "").isEmpty &&
+                    SeriesBucket.normalizedKey(name: $0.name, unit: $0.unit) == nk
+                }
+                .sorted { $0.capturedAt > $1.capturedAt }
+                .map(Record.single)
+        }
+    }
+
+    private var title: String {
+        switch group {
+        case .bloodPressure:
+            return String(appLoc: "血压")
+        case .series, .lab:
+            if case let .single(i)? = records.first { return i.name }
+            return String(appLoc: "指标详情")
+        }
+    }
+
+    /// 对应的趋势 bucket(需 ≥2 个可解析数值点才存在);nil 时隐藏「查看趋势图」。
+    private var bucket: SeriesBucket? {
+        let all = SeriesBucket.build(from: indicators,
+                                     profile: profiles.first,
+                                     customMetrics: customMetrics)
+        switch group {
+        case .bloodPressure:
+            return all.first { $0.id == "bp" }
+        case .series(let key):
+            return all.first { b in b.lines.contains { $0.seriesKey == key } }
+        case .lab(let nk):
+            return all.first { $0.kind == .lab && $0.id == "lab:\(nk)" }
+        }
+    }
+
+    private var currentIndex: Int {
+        records.firstIndex { $0.id == selection } ?? 0
+    }
+
+    // MARK: - Body
+
+    var body: some View {
+        NavigationStack {
+            VStack(spacing: 0) {
+                header
+                if records.isEmpty {
+                    Spacer()
+                    TjPlaceholder(label: String(appLoc: "记录已不存在"))
+                        .frame(width: 200, height: 120)
+                    Spacer()
+                } else {
+                    pages
+                    pager
+                    if bucket != nil { trendButton }
+                }
+            }
+            .background(Tj.Palette.sand.ignoresSafeArea())
+            .navigationDestination(isPresented: $showTrend) {
+                if let bucket { TrendDetailView(bucket: bucket) }
+            }
+        }
+        .presentationDetents([.medium, .large])
+        .presentationDragIndicator(.visible)
+        .presentationBackground(Tj.Palette.sand)
+        .presentationCornerRadius(Tj.Radius.xl)
+        .onAppear { if selection == nil { selection = records.first?.id } }
+        .alert(String(appLoc: "永久删除这条记录?"), isPresented: $showDeleteConfirm) {
+            Button(String(appLoc: "删除"), role: .destructive) { deleteCurrent() }
+            Button(String(appLoc: "取消"), role: .cancel) { }
+        } message: {
+            Text("删除后无法恢复。")
+        }
+        .sheet(item: $evidenceTarget) { indicator in
+            if let report = indicator.report {
+                EvidenceImagePreview(report: report, indicator: indicator)
+            }
+        }
+    }
+
+    // MARK: - Header
+
+    private var header: some View {
+        HStack(spacing: 12) {
+            Button { dismiss() } label: {
+                Image(systemName: "xmark")
+                    .font(.tjScaled(16, weight: .semibold))
+                    .foregroundStyle(Tj.Palette.text)
+                    .frame(width: 32, height: 32)
+                    .background(Circle().fill(Tj.Palette.sand2))
+            }
+            Text(title)
+                .font(.tjH2())
+                .foregroundStyle(Tj.Palette.text)
+                .lineLimit(1)
+            if records.count > 1 {
+                Text("\(records.count) 条")
+                    .font(.tjScaled(12))
+                    .foregroundStyle(Tj.Palette.text3)
+            }
+            Spacer()
+            TjLockChip()
+        }
+        .padding(.horizontal, 20)
+        .padding(.vertical, 14)
+        .background(Tj.Palette.sand)
+        .overlay(alignment: .bottom) {
+            Rectangle().fill(Tj.Palette.lineSoft).frame(height: 1)
+        }
+    }
+
+    // MARK: - 翻页内容
+
+    private var pages: some View {
+        TabView(selection: $selection) {
+            ForEach(records) { rec in
+                ScrollView {
+                    VStack(alignment: .leading, spacing: 16) {
+                        recordCard(rec)
+                        deleteButton
+                    }
+                    .padding(.horizontal, 20)
+                    .padding(.vertical, 16)
+                    .frame(maxWidth: .infinity, alignment: .leading)
+                }
+                .tag(Optional(rec.id))
+            }
+        }
+        .tabViewStyle(.page(indexDisplayMode: .never))
+    }
+
+    @ViewBuilder
+    private func recordCard(_ rec: Record) -> some View {
+        switch rec {
+        case .single(let i):            singleCard(i)
+        case .bp(let sys, let dia):     bpCard(sys: sys, dia: dia)
+        }
+    }
+
+    private func singleCard(_ i: Indicator) -> some View {
+        card {
+            HStack(alignment: .firstTextBaseline) {
+                Text(i.name).font(.tjH2()).foregroundStyle(Tj.Palette.text)
+                Spacer()
+                statusChip(i.status)
+            }
+            HStack(alignment: .firstTextBaseline, spacing: 4) {
+                Text(i.value)
+                    .font(.tjScaled(30, weight: .bold, design: .rounded))
+                    .foregroundStyle(i.status == .normal ? Tj.Palette.text : Tj.Palette.brick)
+                if !i.unit.isEmpty {
+                    Text(i.unit).font(.tjScaled(14)).foregroundStyle(Tj.Palette.text3)
+                }
+            }
+            divider
+            if !i.range.isEmpty { field(String(appLoc: "参考范围"), i.range) }
+            field(String(appLoc: "记录时间"), Self.dateTimeText(i.capturedAt))
+            field(String(appLoc: "来源"), i.report?.title ?? i.source.label)
+            if i.report != nil { evidenceButton(for: i) }
+            if let note = i.note, !note.isEmpty { field(String(appLoc: "备注"), note) }
+        }
+    }
+
+    private func bpCard(sys: Indicator, dia: Indicator?) -> some View {
+        let combined: IndicatorStatus = sys.status != .normal ? sys.status : (dia?.status ?? .normal)
+        return card {
+            HStack(alignment: .firstTextBaseline) {
+                Text(String(appLoc: "血压")).font(.tjH2()).foregroundStyle(Tj.Palette.text)
+                Spacer()
+                statusChip(combined)
+            }
+            HStack(alignment: .firstTextBaseline, spacing: 4) {
+                Text("\(sys.value)/\(dia?.value ?? "—")")
+                    .font(.tjScaled(30, weight: .bold, design: .rounded))
+                    .foregroundStyle(combined == .normal ? Tj.Palette.text : Tj.Palette.brick)
+                Text("mmHg").font(.tjScaled(14)).foregroundStyle(Tj.Palette.text3)
+            }
+            divider
+            if !sys.range.isEmpty { field(String(appLoc: "参考范围"), sys.range) }
+            field(String(appLoc: "记录时间"), Self.dateTimeText(sys.capturedAt))
+        }
+    }
+
+    // MARK: - 翻页器
+
+    private var pager: some View {
+        VStack(spacing: 8) {
+            HStack(spacing: 20) {
+                pagerArrow("chevron.left", enabled: currentIndex > 0) {
+                    if currentIndex > 0 { selection = records[currentIndex - 1].id }
+                }
+                if records.count <= 7 {
+                    HStack(spacing: 6) {
+                        ForEach(Array(records.enumerated()), id: \.offset) { idx, _ in
+                            Circle()
+                                .fill(idx == currentIndex ? Tj.Palette.ink : Tj.Palette.line)
+                                .frame(width: 6, height: 6)
+                        }
+                    }
+                }
+                pagerArrow("chevron.right", enabled: currentIndex < records.count - 1) {
+                    if currentIndex < records.count - 1 { selection = records[currentIndex + 1].id }
+                }
+            }
+            Text("第 \(currentIndex + 1) / 共 \(records.count) 条")
+                .font(.tjScaled(11, design: .monospaced))
+                .foregroundStyle(Tj.Palette.text3)
+        }
+        .padding(.top, 4)
+        .padding(.bottom, 10)
+        .frame(maxWidth: .infinity)
+    }
+
+    private func pagerArrow(_ system: String, enabled: Bool, action: @escaping () -> Void) -> some View {
+        Button(action: action) {
+            Image(systemName: system)
+                .font(.tjScaled(13, weight: .semibold))
+                .foregroundStyle(enabled ? Tj.Palette.text : Tj.Palette.text3.opacity(0.4))
+                .frame(width: 30, height: 30)
+                .background(Circle().fill(Tj.Palette.sand2))
+        }
+        .buttonStyle(.plain)
+        .disabled(!enabled)
+    }
+
+    // MARK: - 趋势 / 删除
+
+    private var trendButton: some View {
+        Button { showTrend = true } label: {
+            Label(String(appLoc: "查看趋势图"), systemImage: "chart.xyaxis.line")
+                .font(.tjScaled(15, weight: .semibold))
+                .foregroundStyle(Tj.Palette.paper)
+                .frame(maxWidth: .infinity)
+                .padding(.vertical, 14)
+                .background(
+                    RoundedRectangle(cornerRadius: Tj.Radius.md, style: .continuous)
+                        .fill(Tj.Palette.ink)
+                )
+        }
+        .buttonStyle(.plain)
+        .padding(.horizontal, 20)
+        .padding(.bottom, 20)
+    }
+
+    private var deleteButton: some View {
+        Button(role: .destructive) { showDeleteConfirm = true } label: {
+            Label(String(appLoc: "永久删除"), systemImage: "trash")
+                .font(.tjScaled(12, weight: .medium))
+                .foregroundStyle(Tj.Palette.brick.opacity(0.8))
+                .padding(.horizontal, 14)
+                .padding(.vertical, 8)
+                .background(
+                    RoundedRectangle(cornerRadius: Tj.Radius.md, style: .continuous)
+                        .strokeBorder(Tj.Palette.brick.opacity(0.3), lineWidth: 1)
+                )
+                .contentShape(Rectangle())
+        }
+        .buttonStyle(.plain)
+        .padding(.top, 8)
+    }
+
+    /// 删当前页记录(永久:SwiftData 硬删 + Vault 原图 unlink,见 CLAUDE.md §6)。
+    /// 删后把 selection 落到相邻一条;删空则关闭。
+    private func deleteCurrent() {
+        guard records.indices.contains(currentIndex) else { return }
+        let removingIndex = currentIndex
+        switch records[removingIndex] {
+        case .single(let i):
+            deleteIndicator(i)
+        case .bp(let sys, let dia):
+            deleteIndicator(sys)
+            if let dia { deleteIndicator(dia) }
+        }
+        try? ctx.save()
+
+        let remaining = records
+        if remaining.isEmpty {
+            dismiss()
+        } else {
+            let next = min(removingIndex, remaining.count - 1)
+            selection = remaining[next].id
+        }
+    }
+
+    private func deleteIndicator(_ i: Indicator) {
+        if let asset = i.asset {
+            try? FileVault.shared.remove(relativePath: asset.relativePath)
+            ctx.delete(asset)
+        }
+        ctx.delete(i)
+    }
+
+    // MARK: - 复用件
+
+    @ViewBuilder
+    private func card<Content: View>(@ViewBuilder content: () -> Content) -> some View {
+        VStack(alignment: .leading, spacing: 10) { content() }
+            .padding(14)
+            .frame(maxWidth: .infinity, alignment: .leading)
+            .background(
+                RoundedRectangle(cornerRadius: Tj.Radius.md, style: .continuous)
+                    .fill(Tj.Palette.paper)
+            )
+            .overlay(
+                RoundedRectangle(cornerRadius: Tj.Radius.md, style: .continuous)
+                    .strokeBorder(Tj.Palette.lineSoft, lineWidth: 1)
+            )
+    }
+
+    private func field(_ label: String, _ value: String) -> some View {
+        HStack(alignment: .top, spacing: 12) {
+            Text(label).font(.tjScaled(13)).foregroundStyle(Tj.Palette.text3)
+            Spacer(minLength: 12)
+            Text(value)
+                .font(.tjScaled(14, weight: .medium))
+                .foregroundStyle(Tj.Palette.text)
+                .multilineTextAlignment(.trailing)
+                .fixedSize(horizontal: false, vertical: true)
+        }
+    }
+
+    @ViewBuilder
+    private func evidenceButton(for indicator: Indicator) -> some View {
+        if indicator.hasEvidenceBox,
+           let page = indicator.sourcePageIndex,
+           let assets = indicator.report?.assets,
+           assets.indices.contains(page) {
+            Button {
+                evidenceTarget = indicator
+            } label: {
+                Label(String(appLoc: "查看原图位置"), systemImage: "viewfinder")
+                    .font(.tjScaled(12, weight: .semibold))
+                    .foregroundStyle(Tj.Palette.ink)
+                    .padding(.horizontal, 10)
+                    .padding(.vertical, 6)
+                    .background(Capsule().fill(Tj.Palette.leaf.opacity(0.14)))
+                    .contentShape(Rectangle())
+            }
+            .buttonStyle(.plain)
+        }
+    }
+
+    private var divider: some View {
+        Rectangle().fill(Tj.Palette.lineSoft).frame(height: 1)
+    }
+
+    private func statusChip(_ s: IndicatorStatus) -> some View {
+        let text: String
+        let color: Color
+        let arrow: String
+        switch s {
+        case .high:   text = String(appLoc: "偏高"); color = Tj.Palette.brick; arrow = "↑"
+        case .low:    text = String(appLoc: "偏低"); color = Tj.Palette.brick; arrow = "↓"
+        case .normal: text = String(appLoc: "正常"); color = Tj.Palette.leaf;  arrow = ""
+        }
+        return HStack(spacing: 3) {
+            if !arrow.isEmpty { Text(arrow).font(.tjScaled(11, weight: .bold)) }
+            Text(text).font(.tjScaled(12, weight: .semibold))
+        }
+        .foregroundStyle(color)
+        .padding(.horizontal, 8)
+        .padding(.vertical, 4)
+        .background(Capsule().fill(color.opacity(0.14)))
+    }
+
+    private nonisolated static func dateTimeText(_ d: Date) -> String {
+        d.formatted(.dateTime.year().month().day().hour().minute())
+    }
+}

康康/Features/Timeline/TimelineEntryDetailView.swift

@@ -420,7 +420,8 @@ struct TimelineEntryDetailView: View {
     }
 }
 
-private struct EvidenceImagePreview: View {
+/// 原图证据预览(翻页 + 高亮框)。指标详情与同类聚合详情共用,故为模块内可见。
+struct EvidenceImagePreview: View {
     @Environment(\.dismiss) private var dismiss
     let report: Report
     let indicator: Indicator