feat(ui): UI 骨架基线 — 3 Tab + RecordSheet + Quick/Archive 流程占位

替换 Xcode 默认模板:
- 删除 ContentView/Item/__App
- 新增 App/TijiApp(SwiftData ModelContainer)、RootView(3 Tab + RecordSheet)
- DesignSystem:Tokens(色板/字体/圆角)+ Components(卡片/按钮/Chip)
- Models:Indicator / Report / DiaryEntry @Model 初版
- Features:Home / Quick(A1-A3)/ Archive(B1-B5)/ Record / Trends / Me 静态 UI

W2 AI 基座工作将在此基线上叠加。

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

体己/Features/Quick/QuickCaptureFlow.swift

@@ -0,0 +1,60 @@
+import SwiftUI
+
+private enum QuickStep: Hashable {
+    case viewfinder
+    case confirm
+    case batch
+}
+
+struct QuickCaptureFlow: View {
+    var onClose: () -> Void
+
+    @State private var step: QuickStep = .viewfinder
+    @State private var snapCount = 0
+
+    var body: some View {
+        ZStack {
+            switch step {
+            case .viewfinder:
+                A1ViewfinderView(
+                    onShoot: {
+                        snapCount += 1
+                        withAnimation(.easeInOut(duration: 0.25)) { step = .confirm }
+                    },
+                    onClose: onClose
+                )
+                .transition(.opacity)
+
+            case .confirm:
+                A2ConfirmView(
+                    onSave: {
+                        if snapCount >= 2 {
+                            withAnimation { step = .batch }
+                        } else {
+                            onClose()
+                        }
+                    },
+                    onNext: {
+                        withAnimation { step = .viewfinder }
+                    },
+                    onBack: {
+                        withAnimation { step = .viewfinder }
+                    }
+                )
+                .transition(.opacity)
+
+            case .batch:
+                A3BatchView(
+                    onAddMore: {
+                        withAnimation { step = .viewfinder }
+                    },
+                    onFinish: onClose,
+                    onBack: {
+                        withAnimation { step = .confirm }
+                    }
+                )
+                .transition(.opacity)
+            }
+        }
+    }
+}