```

feat(AI): 集成MNN推理引擎替换MLX作为主AI运行时

- 引入MNN(alibaba) + Arm SME2 + CPU作为主AI运行时，支持A19/iPhone17的
  SME2和A17的NEON加速
- 添加MLX Swift作为兜底GPU推理方案，实现双后端切换机制
- 使用单一Qwen3.5-2B多模态模型(1.2GB)，替代原有的LLM+VL分离架构
- 实现InferenceEngine.current引擎选择逻辑，真机默认MNN，模拟器回退MLX
- 更新AIAgent架构，通过MNNLLMBridge(ObjC++) → MNNBackend进行推理
- 修改队列机制防止并发推理导致OOM，使用信号量闸门控制显存占用
- 更新文档中的技术栈说明、模块边界和周次交付计划
```

康康/Features/Profile/ProfileEditView.swift

@@ -38,7 +38,6 @@ private struct ProfileEditForm: View {
     @State private var healthImportDraft: HealthProfileImportDraft?
     @State private var healthImportError: String?
     @State private var isImportingHealthProfile = false
-    @State private var showMedicationScan = false
 
     var body: some View {
         Form {
@@ -88,9 +87,6 @@ private struct ProfileEditForm: View {
                               items: $profile.allergies)
             StringListSection(title: String(appLoc: "家族史"), placeholder: String(appLoc: "如:母亲 高血压"),
                               items: $profile.familyHistory)
-            StringListSection(title: String(appLoc: "当前用药"), placeholder: String(appLoc: "如:缬沙坦 80mg qd"),
-                              items: $profile.currentMedications,
-                              onScan: { showMedicationScan = true })
         }
         .navigationTitle("个人资料")
         .navigationBarTitleDisplayMode(.inline)
@@ -100,16 +96,6 @@ private struct ProfileEditForm: View {
             profile.updatedAt = .now
             try? ctx.save()
         }
-        .fullScreenCover(isPresented: $showMedicationScan) {
-            // 拍药盒 → 本地 OCR + LLM 识别 → 核对 → 统一落库:
-            // 记一条「用药」日记(进记录时间线)+ 同步当前用药(去重)。
-            MedicationScanFlow(
-                onSave: { entries in
-                    MedicationArchiver.archive(entries: entries, in: ctx)
-                },
-                onClose: { showMedicationScan = false }
-            )
-        }
         .sheet(item: $healthImportDraft) { draft in
             HealthProfileImportPreviewSheet(
                 draft: draft,
@@ -468,27 +454,10 @@ private struct StringListSection: View {
     let title: String
     let placeholder: String
     @Binding var items: [String]
-    /// 非 nil 时在节内显示「拍药盒自动识别」入口(目前仅「当前用药」用)。
-    var onScan: (() -> Void)? = nil
     @State private var newInput = ""
 
     var body: some View {
         Section(title) {
-            if let onScan {
-                Button(action: onScan) {
-                    HStack(spacing: 10) {
-                        Image(systemName: "camera.viewfinder")
-                            .foregroundStyle(Tj.Palette.ink)
-                        VStack(alignment: .leading, spacing: 2) {
-                            Text("拍药盒自动识别")
-                                .foregroundStyle(Tj.Palette.text)
-                            Text("拍药盒或说明书,本地识别药名与规格")
-                                .font(.tjScaled( 12))
-                                .foregroundStyle(Tj.Palette.text3)
-                        }
-                    }
-                }
-            }
             ForEach(items, id: \.self) { item in
                 HStack {
                     Text(item)