Side-app use: copy/open links and titles everywhere, version on the Settings tab, known links preview instantly, Ctrl+V adds to Up next

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

apps/desktop/test/queue_panel_test.dart

@@ -0,0 +1,59 @@
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:watch_together/src/queue/queue_ui.dart';
+import 'package:watch_together/src/session/session_coordinator.dart';
+import 'package:watch_together/src/shell/library_link.dart' show LinkPreview;
+import 'package:watch_together/src/widgets/text_focus.dart';
+
+void main() {
+  testWidgets('Up next popover: holds the keys, Ctrl+V adds with a preview row, + Add link opens a field',
+      (tester) async {
+    final coord = SessionCoordinator();
+    var clip = (files: const <String>[], text: 'look https://example.com/v' as String?);
+    await tester.pumpWidget(MaterialApp(
+      theme: ThemeData.dark(),
+      home: Scaffold(
+        body: Center(
+          child: QueuePanel(
+            queue: coord.queue,
+            onClose: () {},
+            readClipboard: () async => clip,
+            preview: (url) async => const LinkPreview(title: 'A video', subtitle: 'example.com'),
+          ),
+        ),
+      ),
+    ));
+    await tester.pump();
+    expect(textInputFocused(), isTrue, reason: 'the player keys rest while it is open');
+    expect(find.byKey(const ValueKey('queue-add-field')), findsNothing);
+
+    // Ctrl+V: the link goes in at once, as a row with its preview; not in
+    // a server here, so it says why.
+    await tester.sendKeyDownEvent(LogicalKeyboardKey.controlLeft);
+    await tester.sendKeyEvent(LogicalKeyboardKey.keyV);
+    await tester.sendKeyUpEvent(LogicalKeyboardKey.controlLeft);
+    await tester.pump();
+    await tester.pump();
+    expect(find.text('A video'), findsOneWidget);
+    expect(find.text('not in a server'), findsOneWidget);
+
+    // Nothing to add on the clipboard.
+    clip = (files: const <String>[], text: 'just words');
+    await tester.sendKeyDownEvent(LogicalKeyboardKey.controlLeft);
+    await tester.sendKeyEvent(LogicalKeyboardKey.keyV);
+    await tester.sendKeyUpEvent(LogicalKeyboardKey.controlLeft);
+    await tester.pump();
+    expect(find.byKey(const ValueKey('queue-add-error')), findsOneWidget);
+
+    // + Add link: a small field with focus; Esc closes it, focus stays.
+    await tester.tap(find.byKey(const ValueKey('queue-add-link')));
+    await tester.pump();
+    await tester.pump();
+    expect(find.byKey(const ValueKey('queue-add-field')), findsOneWidget);
+    await tester.sendKeyEvent(LogicalKeyboardKey.escape);
+    await tester.pump();
+    expect(find.byKey(const ValueKey('queue-add-field')), findsNothing);
+    expect(textInputFocused(), isTrue);
+  });
+}