feat: add MCP support (#1471)

ui/flutter/lib/shared/widgets/app_copy_icon_button.dart

@@ -0,0 +1,59 @@
+import 'package:flutter/material.dart' show Icons;
+import 'package:flutter/services.dart';
+import 'package:flutter/widgets.dart';
+import 'package:shadcn_flutter/shadcn_flutter.dart' as shad;
+
+import '../../l10n/l10n.dart';
+import 'app_tooltip.dart';
+
+class AppCopyIconButton extends StatefulWidget {
+  const AppCopyIconButton({
+    super.key,
+    required this.text,
+    this.enabled = true,
+    this.dimension = 28,
+    this.iconSize = 16,
+  });
+
+  final String text;
+  final bool enabled;
+  final double dimension;
+  final double iconSize;
+
+  @override
+  State<AppCopyIconButton> createState() => _AppCopyIconButtonState();
+}
+
+class _AppCopyIconButtonState extends State<AppCopyIconButton> {
+  bool _copied = false;
+
+  @override
+  void didUpdateWidget(covariant AppCopyIconButton oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    if (widget.text != oldWidget.text || (!widget.enabled && oldWidget.enabled)) {
+      _copied = false;
+    }
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return AppTooltip(
+      message: _copied ? context.l10n.copied : context.l10n.copy,
+      child: SizedBox.square(
+        dimension: widget.dimension,
+        child: shad.IconButton.ghost(
+          size: shad.ButtonSize.xSmall,
+          onPressed: widget.enabled ? _copy : null,
+          icon: Icon(_copied ? Icons.check : Icons.copy_outlined, size: widget.iconSize),
+        ),
+      ),
+    );
+  }
+
+  Future<void> _copy() async {
+    await Clipboard.setData(ClipboardData(text: widget.text));
+    if (mounted) {
+      setState(() => _copied = true);
+    }
+  }
+}