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/presentation/providers/downloads_provider_old.dart

@@ -0,0 +1,221 @@
+import 'dart:async';
+import 'package:flutter/foundation.dart';
+import '../../data/services/torrent_platform_service.dart';
+import '../../data/models/torrent_info.dart';
+
+class ActiveDownload {
+  final String infoHash;
+  final String name;
+  final DownloadProgress progress;
+  final DateTime startTime;
+  final List<String> selectedFiles;
+
+  ActiveDownload({
+    required this.infoHash,
+    required this.name,
+    required this.progress,
+    required this.startTime,
+    required this.selectedFiles,
+  });
+
+  ActiveDownload copyWith({
+    String? infoHash,
+    String? name,
+    DownloadProgress? progress,
+    DateTime? startTime,
+    List<String>? selectedFiles,
+  }) {
+    return ActiveDownload(
+      infoHash: infoHash ?? this.infoHash,
+      name: name ?? this.name,
+      progress: progress ?? this.progress,
+      startTime: startTime ?? this.startTime,
+      selectedFiles: selectedFiles ?? this.selectedFiles,
+    );
+  }
+}
+
+class DownloadsProvider with ChangeNotifier {
+  final List<TorrentInfo> _torrents = [];
+  Timer? _progressTimer;
+  bool _isLoading = false;
+  String? _error;
+
+  List<TorrentInfo> get torrents => List.unmodifiable(_torrents);
+  bool get isLoading => _isLoading;
+  String? get error => _error;
+
+  DownloadsProvider() {
+    _startProgressUpdates();
+    loadDownloads();
+  }
+
+  @override
+  void dispose() {
+    _progressTimer?.cancel();
+    super.dispose();
+  }
+
+  void _startProgressUpdates() {
+    _progressTimer = Timer.periodic(const Duration(seconds: 2), (timer) {
+      _updateProgress();
+    });
+  }
+
+  Future<void> loadDownloads() async {
+    _isLoading = true;
+    _error = null;
+    notifyListeners();
+
+    try {
+      final progressList = await TorrentPlatformService.getAllDownloads();
+      
+      _downloads = progressList.map((progress) {
+        // Try to find existing download to preserve metadata
+        final existing = _downloads.where((d) => d.infoHash == progress.infoHash).firstOrNull;
+        
+        return ActiveDownload(
+          infoHash: progress.infoHash,
+          name: existing?.name ?? 'Unnamed Torrent',
+          progress: progress,
+          startTime: existing?.startTime ?? DateTime.now(),
+          selectedFiles: existing?.selectedFiles ?? [],
+        );
+      }).toList();
+
+      _isLoading = false;
+      notifyListeners();
+    } catch (e) {
+      _error = e.toString();
+      _isLoading = false;
+      notifyListeners();
+    }
+  }
+
+  Future<void> _updateProgress() async {
+    if (_downloads.isEmpty) return;
+
+    try {
+      final List<ActiveDownload> updatedDownloads = [];
+      
+      for (final download in _downloads) {
+        final progress = await TorrentPlatformService.getDownloadProgress(download.infoHash);
+        if (progress != null) {
+          updatedDownloads.add(download.copyWith(progress: progress));
+        }
+      }
+      
+      _downloads = updatedDownloads;
+      notifyListeners();
+    } catch (e) {
+      // Silent failure for progress updates
+      if (kDebugMode) {
+        print('Failed to update progress: $e');
+      }
+    }
+  }
+
+  Future<bool> pauseDownload(String infoHash) async {
+    try {
+      final success = await TorrentPlatformService.pauseDownload(infoHash);
+      if (success) {
+        await _updateProgress();
+      }
+      return success;
+    } catch (e) {
+      _error = e.toString();
+      notifyListeners();
+      return false;
+    }
+  }
+
+  Future<bool> resumeDownload(String infoHash) async {
+    try {
+      final success = await TorrentPlatformService.resumeDownload(infoHash);
+      if (success) {
+        await _updateProgress();
+      }
+      return success;
+    } catch (e) {
+      _error = e.toString();
+      notifyListeners();
+      return false;
+    }
+  }
+
+  Future<bool> cancelDownload(String infoHash) async {
+    try {
+      final success = await TorrentPlatformService.cancelDownload(infoHash);
+      if (success) {
+        _downloads.removeWhere((d) => d.infoHash == infoHash);
+        notifyListeners();
+      }
+      return success;
+    } catch (e) {
+      _error = e.toString();
+      notifyListeners();
+      return false;
+    }
+  }
+
+  void addDownload({
+    required String infoHash,
+    required String name,
+    required List<String> selectedFiles,
+  }) {
+    final download = ActiveDownload(
+      infoHash: infoHash,
+      name: name,
+      progress: DownloadProgress(
+        infoHash: infoHash,
+        progress: 0.0,
+        downloadRate: 0,
+        uploadRate: 0,
+        numSeeds: 0,
+        numPeers: 0,
+        state: 'starting',
+      ),
+      startTime: DateTime.now(),
+      selectedFiles: selectedFiles,
+    );
+
+    _downloads.add(download);
+    notifyListeners();
+  }
+
+  ActiveDownload? getDownload(String infoHash) {
+    try {
+      return _downloads.where((d) => d.infoHash == infoHash).first;
+    } catch (e) {
+      return null;
+    }
+  }
+
+  String formatFileSize(int bytes) {
+    if (bytes < 1024) return '$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 '${(bytes / (1024 * 1024 * 1024)).toStringAsFixed(1)} GB';
+  }
+
+  String formatSpeed(int bytesPerSecond) {
+    return '${formatFileSize(bytesPerSecond)}/s';
+  }
+
+  String formatDuration(Duration duration) {
+    if (duration.inDays > 0) {
+      return '${duration.inDays}d ${duration.inHours % 24}h';
+    }
+    if (duration.inHours > 0) {
+      return '${duration.inHours}h ${duration.inMinutes % 60}m';
+    }
+    if (duration.inMinutes > 0) {
+      return '${duration.inMinutes}m ${duration.inSeconds % 60}s';
+    }
+    return '${duration.inSeconds}s';
+  }
+}
+
+extension ListExtension<T> on List<T> {
+  T? get firstOrNull => isEmpty ? null : first;
+}