```

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/App/KangkangApp.swift

@@ -0,0 +1,28 @@
+import SwiftUI
+import SwiftData
+
+@main
+struct TijiApp: App {
+    var sharedModelContainer: ModelContainer = {
+        let schema = Schema([
+            Indicator.self,
+            Report.self,
+            DiaryEntry.self,
+            Asset.self,
+            ChatTurn.self,
+        ])
+        let config = ModelConfiguration(schema: schema, isStoredInMemoryOnly: false)
+        do {
+            return try ModelContainer(for: schema, configurations: [config])
+        } catch {
+            fatalError("Could not create ModelContainer: \(error)")
+        }
+    }()
+
+    var body: some Scene {
+        WindowGroup {
+            RootView()
+        }
+        .modelContainer(sharedModelContainer)
+    }
+}