```

refactor: 重命名项目名称从"体己"到"康康"

将整个项目的目录结构从"体己"重命名为"康康"，包括所有源代码文件、
资源文件、测试文件以及Xcode项目配置文件。此更改涉及项目中所有的
文件路径和应用入口点(App/TijiApp.swift → App/KangkangApp.swift)。
```

康康/Features/Quick/SmartFramer.swift

@@ -0,0 +1,100 @@
+import SwiftUI
+
+struct SmartFramer: View {
+    var radius: CGFloat = 10
+    var height: CGFloat = 56
+    @State private var breathing = false
+
+    var body: some View {
+        GeometryReader { geo in
+            ZStack {
+                Color.black.opacity(0.32)
+                    .mask(
+                        Rectangle()
+                            .overlay(
+                                RoundedRectangle(cornerRadius: radius, style: .continuous)
+                                    .frame(height: height)
+                                    .padding(.horizontal, geo.size.width * 0.08)
+                                    .blendMode(.destinationOut)
+                            )
+                            .compositingGroup()
+                    )
+
+                RoundedRectangle(cornerRadius: radius + 4, style: .continuous)
+                    .stroke(Color(red: 0.95, green: 0.78, blue: 0.45), lineWidth: 1.5)
+                    .shadow(color: Color(red: 0.95, green: 0.78, blue: 0.45).opacity(0.5), radius: 8)
+                    .frame(height: height + 8)
+                    .padding(.horizontal, geo.size.width * 0.08 - 4)
+                    .opacity(breathing ? 1 : 0.35)
+
+                cornerMarks(in: geo.size)
+            }
+            .frame(width: geo.size.width, height: geo.size.height)
+            .onAppear {
+                withAnimation(.easeInOut(duration: 2.2).repeatForever(autoreverses: true)) {
+                    breathing.toggle()
+                }
+            }
+        }
+    }
+
+    private func cornerMarks(in size: CGSize) -> some View {
+        let inset = size.width * 0.08
+        return ZStack {
+            ForEach(Corner.allCases, id: \.self) { corner in
+                CornerMark(corner: corner, radius: radius)
+                    .frame(width: 18, height: 18)
+                    .position(corner.position(in: size, inset: inset, frameHeight: height))
+            }
+        }
+    }
+}
+
+private enum Corner: CaseIterable {
+    case tl, tr, bl, br
+    func position(in size: CGSize, inset: CGFloat, frameHeight: CGFloat) -> CGPoint {
+        let centerY = size.height / 2
+        let top = centerY - frameHeight / 2
+        let bottom = centerY + frameHeight / 2
+        switch self {
+        case .tl: return CGPoint(x: inset, y: top)
+        case .tr: return CGPoint(x: size.width - inset, y: top)
+        case .bl: return CGPoint(x: inset, y: bottom)
+        case .br: return CGPoint(x: size.width - inset, y: bottom)
+        }
+    }
+}
+
+private struct CornerMark: View {
+    let corner: Corner
+    let radius: CGFloat
+
+    var body: some View {
+        Path { p in
+            let r = min(radius, 8)
+            switch corner {
+            case .tl:
+                p.move(to: CGPoint(x: 0, y: 18))
+                p.addLine(to: CGPoint(x: 0, y: r))
+                p.addQuadCurve(to: CGPoint(x: r, y: 0), control: CGPoint(x: 0, y: 0))
+                p.addLine(to: CGPoint(x: 18, y: 0))
+            case .tr:
+                p.move(to: CGPoint(x: 0, y: 0))
+                p.addLine(to: CGPoint(x: 18 - r, y: 0))
+                p.addQuadCurve(to: CGPoint(x: 18, y: r), control: CGPoint(x: 18, y: 0))
+                p.addLine(to: CGPoint(x: 18, y: 18))
+            case .bl:
+                p.move(to: CGPoint(x: 0, y: 0))
+                p.addLine(to: CGPoint(x: 0, y: 18 - r))
+                p.addQuadCurve(to: CGPoint(x: r, y: 18), control: CGPoint(x: 0, y: 18))
+                p.addLine(to: CGPoint(x: 18, y: 18))
+            case .br:
+                p.move(to: CGPoint(x: 0, y: 18))
+                p.addLine(to: CGPoint(x: 18 - r, y: 18))
+                p.addQuadCurve(to: CGPoint(x: 18, y: 18 - r), control: CGPoint(x: 18, y: 18))
+                p.addLine(to: CGPoint(x: 18, y: 0))
+            }
+        }
+        .stroke(Tj.Palette.paper, style: StrokeStyle(lineWidth: 2.5, lineCap: .round))
+    }
+}