chore: core 多模块骨架

IosClientKit/Sources/CoreDomain/HomeRepository.swift

@@ -0,0 +1,8 @@
+import CoreModel
+
+/// Home 数据仓库协议（定义在 domain 层，实现放 CoreRepository）。
+/// Kotlin: interface HomeRepository { fun observeHome(): Flow<HomeData> }
+public protocol HomeRepository: Sendable {
+    /// Kotlin: Flow<HomeData> → Swift: AsyncThrowingStream<HomeData, Error>
+    func observeHome() -> AsyncThrowingStream<HomeData, Error>
+}