added ios module

ios/OralTrainer/Models/TrainingModels.swift

@@ -0,0 +1,95 @@
+import Foundation
+
+struct SentenceBoundary: Identifiable, Equatable, Decodable {
+    let index: Int
+    let startMs: Int64
+    let endMs: Int64
+    let text: String?
+    let language: String?
+    let referenceSpeechDurationMs: Int64?
+
+    var id: Int { index }
+
+    private enum CodingKeys: String, CodingKey {
+        case index, text, language
+        case startMs = "start_ms"
+        case endMs = "end_ms"
+        case referenceSpeechDurationMs = "reference_speech_duration_ms"
+    }
+}
+
+struct SentenceBoundaryDocument: Decodable {
+    let videoHash: String
+    let durationMs: Int64
+    let algorithmVersion: String
+    let sentences: [SentenceBoundary]
+
+    private enum CodingKeys: String, CodingKey {
+        case videoHash = "video_hash"
+        case durationMs = "duration_ms"
+        case algorithmVersion = "algorithm_version"
+        case sentences
+    }
+}
+
+struct TrainingVideoSummary: Identifiable, Decodable {
+    let videoHash: String
+    let title: String
+    let streamUrl: String
+    let durationMs: Int64?
+    let sizeBytes: Int64
+    let language: String?
+    let sentenceCount: Int
+    let status: String
+
+    var id: String { videoHash }
+
+    private enum CodingKeys: String, CodingKey {
+        case title, language, status
+        case videoHash = "video_hash"
+        case streamUrl = "stream_url"
+        case durationMs = "duration_ms"
+        case sizeBytes = "size_bytes"
+        case sentenceCount = "sentence_count"
+    }
+
+    /// 与安卓端一致：相对路径基于服务地址解析；服务地址为 http 时强制使用 http 流地址。
+    func resolvedStreamURL(baseURL: String) -> URL? {
+        guard let base = URL(string: baseURL) else { return nil }
+        var absolute = URL(string: streamUrl, relativeTo: base)?.absoluteString ?? streamUrl
+        if base.scheme == "http" {
+            absolute = absolute.replacingOccurrences(
+                of: "https://",
+                with: "http://",
+                options: [.anchored]
+            )
+        }
+        return URL(string: absolute)
+    }
+}
+
+struct TrainingMediaItem: Identifiable, Equatable {
+    let id: String
+    let title: String
+    let url: URL
+    let sentences: [SentenceBoundary]
+    let isLocalFile: Bool
+
+    init(
+        id: String,
+        title: String,
+        url: URL,
+        sentences: [SentenceBoundary] = [],
+        isLocalFile: Bool = false
+    ) {
+        self.id = id
+        self.title = title
+        self.url = url
+        self.sentences = sentences
+        self.isLocalFile = isLocalFile
+    }
+
+    static func == (lhs: TrainingMediaItem, rhs: TrainingMediaItem) -> Bool {
+        lhs.id == rhs.id
+    }
+}