新增直播模块，包含推流管理与相册流程

将直播推流管理与直播相册从首页占位页迁移为完整实现，包含 alive album OSS 上传、首页路由与单元测试。

Co-authored-by: Cursor <cursoragent@cursor.com>

suixinkanTests/TestFixture.swift

@@ -12,11 +12,21 @@ import Foundation
 enum TestFixture {
     /// 读取指定名称的 JSON fixture。
     static func data(named name: String, filePath: String = #filePath) throws -> Data {
-        let url = URL(fileURLWithPath: filePath)
+        var directory = URL(fileURLWithPath: filePath).deletingLastPathComponent()
+        while directory.path != "/" {
+            let url = directory
+                .appendingPathComponent("Fixtures")
+                .appendingPathComponent("\(name).json")
+            if FileManager.default.fileExists(atPath: url.path) {
+                return try Data(contentsOf: url)
+            }
+            directory.deleteLastPathComponent()
+        }
+        let fallback = URL(fileURLWithPath: filePath)
             .deletingLastPathComponent()
             .appendingPathComponent("Fixtures")
             .appendingPathComponent("\(name).json")
-        return try Data(contentsOf: url)
+        return try Data(contentsOf: fallback)
     }
 
     /// 读取并解包后端统一 Envelope。
@@ -33,3 +43,16 @@ enum TestFixture {
 enum FixtureError: Error {
     case emptyPayload
 }
+
+extension OSSUploadServing {
+    /// 旧上传替身默认不关心直播相册入口；Live 专用测试会覆盖此方法记录调用。
+    func uploadAliveAlbumFile(
+        data: Data,
+        fileName: String,
+        fileType: Int,
+        scenicId: Int,
+        onProgress: @escaping (Int) -> Void
+    ) async throws -> String {
+        ""
+    }
+}