feat(client): 列表日期列改名入库/出库时间删审核时间列 + 日期控件改可键入框带日历

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01YZ4DskSRKsSiheQonFtQvx

client/test/date_picker_field_test.dart

@@ -31,26 +31,47 @@ void main() {
   });
 
   group('DatePickerField', () {
-    testWidgets('渲染三个年/月/日下拉框', (tester) async {
+    testWidgets('渲染可键入框 + 日历图标', (tester) async {
       await tester.pumpWidget(MaterialApp(
         home: Scaffold(
           body: DatePickerField(value: '2026-06-19', onChanged: (_) {}),
         ),
       ));
       await tester.pumpAndSettle();
-      expect(find.byType(DropdownMenu<int>), findsNWidgets(3));
+      expect(find.byType(TextField), findsOneWidget);
+      expect(find.byIcon(Icons.calendar_today), findsOneWidget);
     });
 
-    testWidgets('初始值回显到三个下拉框', (tester) async {
+    testWidgets('初始值回显到输入框', (tester) async {
       await tester.pumpWidget(MaterialApp(
         home: Scaffold(
           body: DatePickerField(value: '2026-06-19', onChanged: (_) {}),
         ),
       ));
       await tester.pumpAndSettle();
-      expect(find.widgetWithText(DropdownMenu<int>, '2026'), findsOneWidget);
-      expect(find.widgetWithText(DropdownMenu<int>, '6'), findsOneWidget);
-      expect(find.widgetWithText(DropdownMenu<int>, '19'), findsOneWidget);
+      expect(find.text('2026-06-19'), findsOneWidget);
+    });
+
+    testWidgets('只输年份归一为 yyyy-01-01', (tester) async {
+      String? out;
+      await tester.pumpWidget(MaterialApp(
+        home: Scaffold(
+          body: DatePickerField(onChanged: (v) => out = v),
+        ),
+      ));
+      await tester.enterText(find.byType(TextField), '2024');
+      expect(out, '2024-01-01');
+    });
+
+    testWidgets('年月归一为 yyyy-MM-01', (tester) async {
+      String? out;
+      await tester.pumpWidget(MaterialApp(
+        home: Scaffold(
+          body: DatePickerField(onChanged: (v) => out = v),
+        ),
+      ));
+      await tester.enterText(find.byType(TextField), '2024-5');
+      expect(out, '2024-05-01');
     });
   });
 }