fix(ui): align history search placeholder and prevent clipping

ui/flutter/lib/features/tasks/presentation/pages/create_task_window_page.dart

@@ -37,6 +37,7 @@ import '../../../../shared/widgets/app_toast.dart';
 import '../../../../l10n/l10n.dart';
 import '../../../../util/util.dart';
 import '../../application/pending_create_task.dart';
+import '../widgets/history_search_field.dart';
 import '../widgets/create_task_action_buttons.dart';
 import '../widgets/resolve_file_tree.dart';
 
@@ -1247,20 +1248,9 @@ class _CreateTaskWindowPageState extends ConsumerState<CreateTaskWindowPage> {
                 height: screenSize.height < 560 ? screenSize.height * 0.55 : 360,
                 child: Column(
                   children: [
-                    SizedBox(
-                      height: 38,
-                      child: AppTextField(
-                        key: const ValueKey('create-history-filter'),
-                        controller: filterController,
-                        placeholder: Text(
-                          dialogContext.l10n.searchHistory,
-                          style: TextStyle(color: palette.searchHint, fontSize: 13),
-                        ),
-                        features: [
-                          InputFeature.leading(Icon(Icons.search_rounded, size: 15, color: palette.textMuted)),
-                        ],
-                        onChanged: (value) => setDialogState(() => filterQuery = value),
-                      ),
+                    HistorySearchField(
+                      controller: filterController,
+                      onChanged: (value) => setDialogState(() => filterQuery = value),
                     ),
                     const SizedBox(height: 10),
                     Expanded(

ui/flutter/lib/features/tasks/presentation/widgets/history_search_field.dart

@@ -0,0 +1,38 @@
+import 'package:shadcn_flutter/shadcn_flutter.dart';
+
+import '../../../../l10n/l10n.dart';
+import '../../../../shared/theme/app_design_tokens.dart';
+import '../../../../shared/theme/app_palette.dart';
+import '../../../../shared/widgets/app_text_field.dart';
+
+class HistorySearchField extends StatelessWidget {
+  const HistorySearchField({super.key, required this.controller, required this.onChanged});
+
+  final TextEditingController controller;
+  final ValueChanged<String> onChanged;
+
+  @override
+  Widget build(BuildContext context) {
+    final palette = AppPalette.of(context);
+    const textStyle = TextStyle(fontSize: 13);
+    return ConstrainedBox(
+      // Allow large accessibility text to grow instead of clipping the line.
+      constraints: const BoxConstraints(minHeight: 38),
+      child: AppTextField(
+        key: const ValueKey('create-history-filter'),
+        controller: controller,
+        style: textStyle,
+        padding: AppDesignTokens.compactTextFieldPadding,
+        placeholder: Text(
+          context.l10n.searchHistory,
+          // Match the editable text metrics so the cursor and hint align.
+          style: textStyle.copyWith(color: palette.searchHint),
+          maxLines: 1,
+          overflow: TextOverflow.ellipsis,
+        ),
+        features: [InputFeature.leading(Icon(Icons.search_rounded, size: 15, color: palette.textMuted))],
+        onChanged: onChanged,
+      ),
+    );
+  }
+}