feat: add FFmpeg WASM runtime (#1512)

ui/flutter/lib/features/tasks/domain/task_record.dart

@@ -299,8 +299,9 @@ TaskAssetType _assetType(String name, {required bool isFolder, required api_task
 }
 
 String _fileExtension(String name) {
-  final pathWithoutQuery = name.split(RegExp(r'[?#]')).first;
-  final extension = path.extension(pathWithoutQuery).replaceFirst('.', '').toLowerCase();
+  final uri = Uri.tryParse(name);
+  final filePath = uri != null && uri.hasScheme && uri.hasAuthority ? uri.path : name;
+  final extension = path.extension(filePath).replaceFirst('.', '').toLowerCase();
   return extension.length <= 10 ? extension : '';
 }
 

ui/flutter/test/features/tasks/domain/task_record_test.dart

@@ -0,0 +1,20 @@
+import 'package:flutter_test/flutter_test.dart';
+import 'package:gopeed/core/icons/gopeed_icons.dart';
+import 'package:gopeed/features/tasks/domain/task_record.dart';
+
+void main() {
+  test('file names preserve hash and question mark characters for type detection', () {
+    expect(
+      taskFileTypeIcon('Slow English Podcast #2 _ Eating, Talking, and Learning Natural English.mp4'),
+      GopeedIcons.fileVideo,
+    );
+    expect(taskFileTypeIcon('What is this? #2.MP4'), GopeedIcons.fileVideo);
+    expect(taskFileTypeIcon('Episode #2.mp3'), GopeedIcons.fileAudio);
+  });
+
+  test('URL fallback ignores query and fragment when detecting file type', () {
+    expect(taskFileTypeIcon('https://example.com/video.mp4?token=abc#part'), GopeedIcons.fileVideo);
+    expect(taskFileTypeIcon('https://example.com/download?name=video.mp4'), GopeedIcons.file);
+    expect(taskFileTypeIcon('Playlist #2.mp4', isFolder: true), GopeedIcons.folder);
+  });
+}