added ios module

ios/OralTrainer/Services/VideoCatalogAPI.swift

@@ -0,0 +1,18 @@
+import Foundation
+
+struct VideoCatalogResponse: Decodable {
+    let videos: [TrainingVideoSummary]
+}
+
+enum VideoCatalogAPI {
+    static func fetch() async throws -> (videos: [TrainingVideoSummary], baseURL: String) {
+        let result = try await HTTPClient.getJSON(
+            VideoCatalogResponse.self,
+            baseURL: AppConfig.serverBaseURL,
+            path: "api/v1/videos",
+            timeout: AppConfig.readTimeout
+        )
+        let ready = result.value.videos.filter { $0.status == "ready" }
+        return (ready, result.effectiveBaseURL)
+    }
+}