feat: Implement comprehensive torrent downloads management system

- Fix torrent platform service integration with Android engine
- Add downloads page with torrent list and progress tracking
- Implement torrent detail screen with file selection and priorities
- Create native video player with fullscreen controls
- Add WebView players for Vibix and Alloha
- Integrate corrected torrent engine with file selector
- Update dependencies for auto_route and video players

Features:
✅ Downloads screen with real-time torrent status
✅ File-level priority management and selection
✅ Three player options: native, Vibix WebView, Alloha WebView
✅ Torrent pause/resume/remove functionality
✅ Progress tracking and seeder/peer counts
✅ Video file detection and playback integration
✅ Fixed Android torrent engine method calls

This resolves torrent integration issues and provides complete
downloads management UI with video playback capabilities.

lib/data/models/torrent_info.dart

@@ -0,0 +1,180 @@
+/// File priority enum matching Android implementation
+enum FilePriority {
+  DONT_DOWNLOAD(0),
+  NORMAL(4),
+  HIGH(7);
+
+  const FilePriority(this.value);
+  final int value;
+
+  static FilePriority fromValue(int value) {
+    return FilePriority.values.firstWhere(
+      (priority) => priority.value == value,
+      orElse: () => FilePriority.NORMAL,
+    );
+  }
+
+  bool operator >(FilePriority other) => value > other.value;
+  bool operator <(FilePriority other) => value < other.value;
+  bool operator >=(FilePriority other) => value >= other.value;
+  bool operator <=(FilePriority other) => value <= other.value;
+}
+
+/// Torrent file information matching Android TorrentFileInfo
+class TorrentFileInfo {
+  final String path;
+  final int size;
+  final FilePriority priority;
+  final double progress;
+
+  TorrentFileInfo({
+    required this.path,
+    required this.size,
+    required this.priority,
+    this.progress = 0.0,
+  });
+
+  factory TorrentFileInfo.fromAndroidJson(Map<String, dynamic> json) {
+    return TorrentFileInfo(
+      path: json['path'] as String,
+      size: json['size'] as int,
+      priority: FilePriority.fromValue(json['priority'] as int),
+      progress: (json['progress'] as num?)?.toDouble() ?? 0.0,
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'path': path,
+      'size': size,
+      'priority': priority.value,
+      'progress': progress,
+    };
+  }
+}
+
+/// Main torrent information class matching Android TorrentInfo
+class TorrentInfo {
+  final String infoHash;
+  final String name;
+  final int totalSize;
+  final double progress;
+  final int downloadSpeed;
+  final int uploadSpeed;
+  final int numSeeds;
+  final int numPeers;
+  final String state;
+  final String savePath;
+  final List<TorrentFileInfo> files;
+  final int pieceLength;
+  final int numPieces;
+  final DateTime? addedTime;
+
+  TorrentInfo({
+    required this.infoHash,
+    required this.name,
+    required this.totalSize,
+    required this.progress,
+    required this.downloadSpeed,
+    required this.uploadSpeed,
+    required this.numSeeds,
+    required this.numPeers,
+    required this.state,
+    required this.savePath,
+    required this.files,
+    this.pieceLength = 0,
+    this.numPieces = 0,
+    this.addedTime,
+  });
+
+  factory TorrentInfo.fromAndroidJson(Map<String, dynamic> json) {
+    final filesJson = json['files'] as List<dynamic>? ?? [];
+    final files = filesJson
+        .map((fileJson) => TorrentFileInfo.fromAndroidJson(fileJson as Map<String, dynamic>))
+        .toList();
+
+    return TorrentInfo(
+      infoHash: json['infoHash'] as String,
+      name: json['name'] as String,
+      totalSize: json['totalSize'] as int,
+      progress: (json['progress'] as num).toDouble(),
+      downloadSpeed: json['downloadSpeed'] as int,
+      uploadSpeed: json['uploadSpeed'] as int,
+      numSeeds: json['numSeeds'] as int,
+      numPeers: json['numPeers'] as int,
+      state: json['state'] as String,
+      savePath: json['savePath'] as String,
+      files: files,
+      pieceLength: json['pieceLength'] as int? ?? 0,
+      numPieces: json['numPieces'] as int? ?? 0,
+      addedTime: json['addedTime'] != null
+          ? DateTime.fromMillisecondsSinceEpoch(json['addedTime'] as int)
+          : null,
+    );
+  }
+
+  Map<String, dynamic> toJson() {
+    return {
+      'infoHash': infoHash,
+      'name': name,
+      'totalSize': totalSize,
+      'progress': progress,
+      'downloadSpeed': downloadSpeed,
+      'uploadSpeed': uploadSpeed,
+      'numSeeds': numSeeds,
+      'numPeers': numPeers,
+      'state': state,
+      'savePath': savePath,
+      'files': files.map((file) => file.toJson()).toList(),
+      'pieceLength': pieceLength,
+      'numPieces': numPieces,
+      'addedTime': addedTime?.millisecondsSinceEpoch,
+    };
+  }
+
+  /// Get video files only
+  List<TorrentFileInfo> get videoFiles {
+    final videoExtensions = {'.mp4', '.mkv', '.avi', '.mov', '.wmv', '.flv', '.webm', '.m4v'};
+    return files.where((file) {
+      final extension = file.path.toLowerCase().split('.').last;
+      return videoExtensions.contains('.$extension');
+    }).toList();
+  }
+
+  /// Get the largest video file (usually the main movie file)
+  TorrentFileInfo? get mainVideoFile {
+    final videos = videoFiles;
+    if (videos.isEmpty) return null;
+    
+    videos.sort((a, b) => b.size.compareTo(a.size));
+    return videos.first;
+  }
+
+  /// Check if torrent is completed
+  bool get isCompleted => progress >= 1.0;
+
+  /// Check if torrent is downloading
+  bool get isDownloading => state == 'DOWNLOADING';
+
+  /// Check if torrent is seeding
+  bool get isSeeding => state == 'SEEDING';
+
+  /// Check if torrent is paused
+  bool get isPaused => state == 'PAUSED';
+
+  /// Get formatted download speed
+  String get formattedDownloadSpeed => _formatBytes(downloadSpeed);
+
+  /// Get formatted upload speed
+  String get formattedUploadSpeed => _formatBytes(uploadSpeed);
+
+  /// Get formatted total size
+  String get formattedTotalSize => _formatBytes(totalSize);
+
+  static String _formatBytes(int bytes) {
+    if (bytes < 1024) return '${bytes}B';
+    if (bytes < 1024 * 1024) return '${(bytes / 1024).toStringAsFixed(1)}KB';
+    if (bytes < 1024 * 1024 * 1024) return '${(bytes / (1024 * 1024)).toStringAsFixed(1)}MB';
+    return '${(bytes / (1024 * 1024 * 1024)).toStringAsFixed(1)}GB';
+  }
+}