feat/fix: Все кнопки в экране профиля(кроме жалоб). Фикс ожирения бабла. Новые сообщения теперь не тянут вниз если ты отлистал

test/chat_scroll_anchor_test.dart

@@ -0,0 +1,141 @@
+import 'package:flutter/material.dart';
+import 'package:flutter_test/flutter_test.dart';
+import 'package:komet/frontend/screens/chats/chat/retain_offset_physics.dart';
+
+const double _itemHeight = 60;
+const double _newestHeight = 84;
+const double _viewportHeight = 300;
+
+double? _offsetInList(GlobalKey listKey, GlobalKey itemKey) {
+  final listBox = listKey.currentContext?.findRenderObject();
+  final box = itemKey.currentContext?.findRenderObject();
+  if (listBox is! RenderBox || box is! RenderBox || !box.attached) return null;
+  return box.localToGlobal(Offset.zero, ancestor: listBox).dy;
+}
+
+class _Harness {
+  _Harness(this.tester, {required this.physics});
+
+  final WidgetTester tester;
+  final ScrollPhysics? physics;
+  final GlobalKey listKey = GlobalKey();
+  final ScrollController controller = ScrollController();
+  final List<String> items = [for (var i = 0; i < 40; i++) 'm$i'];
+  late final Map<String, GlobalKey> keys = {
+    for (final id in items) id: GlobalKey(),
+    'newest': GlobalKey(),
+  };
+
+  Future<void> pump() async {
+    await tester.pumpWidget(
+      MaterialApp(
+        home: Scaffold(
+          body: SizedBox(
+            key: listKey,
+            height: _viewportHeight,
+            child: CustomScrollView(
+              controller: controller,
+              reverse: true,
+              physics: physics,
+              slivers: [
+                SliverList(
+                  delegate: SliverChildBuilderDelegate((context, index) {
+                    if (index == 0) return const SizedBox(height: 0);
+                    final id = items[items.length - index];
+                    return SizedBox(
+                      key: keys[id],
+                      height: id == 'newest' ? _newestHeight : _itemHeight,
+                      child: Text(id),
+                    );
+                  }, childCount: items.length + 1),
+                ),
+              ],
+            ),
+          ),
+        ),
+      ),
+    );
+    await tester.pump();
+  }
+
+  String anchorId() => items.firstWhere((id) {
+    final dy = _offsetInList(listKey, keys[id]!);
+    return dy != null && dy >= 0 && dy <= _viewportHeight;
+  });
+
+  double dyOf(String id) => _offsetInList(listKey, keys[id]!)!;
+}
+
+void main() {
+  testWidgets('appending to a reversed list drags the view toward the newest '
+      'message', (tester) async {
+    final h = _Harness(tester, physics: null);
+    addTearDown(h.controller.dispose);
+
+    await h.pump();
+    h.controller.jumpTo(600);
+    await tester.pump();
+
+    final anchor = h.anchorId();
+    final beforeDy = h.dyOf(anchor);
+
+    h.items.add('newest');
+    await h.pump();
+
+    expect(h.dyOf(anchor), lessThan(beforeDy - 1));
+    expect(h.controller.position.pixels, 600);
+  });
+
+  testWidgets('RetainOffsetScrollPhysics holds the view in place when a '
+      'message is appended', (tester) async {
+    var retainOnce = false;
+    final h = _Harness(
+      tester,
+      physics: RetainOffsetScrollPhysics(
+        retain: () {
+          if (!retainOnce) return false;
+          retainOnce = false;
+          return true;
+        },
+      ),
+    );
+    addTearDown(h.controller.dispose);
+
+    await h.pump();
+    h.controller.jumpTo(600);
+    await tester.pump();
+
+    final anchor = h.anchorId();
+    final beforeDy = h.dyOf(anchor);
+
+    retainOnce = true;
+    h.items.add('newest');
+    await h.pump();
+
+    expect(h.dyOf(anchor), closeTo(beforeDy, 0.5));
+    expect(h.controller.position.pixels, greaterThan(600));
+  });
+
+  testWidgets('RetainOffsetScrollPhysics stays inert while the flag is unset', (
+    tester,
+  ) async {
+    final h = _Harness(
+      tester,
+      physics: RetainOffsetScrollPhysics(retain: () => false),
+    );
+    addTearDown(h.controller.dispose);
+
+    await h.pump();
+    h.controller.jumpTo(600);
+    await tester.pump();
+
+    final anchor = h.anchorId();
+    final beforeDy = h.dyOf(anchor);
+
+    h.items.add('newest');
+    await h.pump();
+
+    expect(h.dyOf(anchor), lessThan(beforeDy - 1));
+    expect(h.controller.position.pixels, 600);
+  });
+}

test/message_bubble_layout_test.dart

@@ -3,9 +3,11 @@ import 'package:flutter_test/flutter_test.dart';
 import 'package:komet/backend/modules/messages.dart';
 import 'package:komet/frontend/widgets/message_bubble.dart';
 import 'package:komet/l10n/app_localizations.dart';
+import 'package:komet/models/attachment.dart';
 
 const int _me = 1;
 const int _peer = 7;
+const double _photoWidth = 180;
 
 CachedMessage _message({
   required String text,
@@ -35,6 +37,36 @@ CachedMessage _message({
       : null,
 );
 
+CachedMessage _photoReply() => CachedMessage(
+  id: '1',
+  accountId: _me,
+  chatId: 2,
+  senderId: _peer,
+  text: 'Вот те раз, не может быть',
+  time: DateTime(2026, 1, 1, 5, 46).millisecondsSinceEpoch,
+  status: 'sent',
+  attachments: [
+    PhotoAttachment(
+      baseUrl: 'https://example.com/synthetic.jpg',
+      width: _photoWidth.toInt(),
+      height: 240,
+    ),
+  ],
+  payload: {
+    'link': {
+      'type': 'REPLY',
+      'message': {
+        'id': '9',
+        'sender': _me,
+        'text':
+            'Эта функция, она для «спамеров - скамеров» и «мутных - анонимов»',
+        'time': 0,
+        'attaches': [],
+      },
+    },
+  },
+);
+
 Future<void> _pumpColumn(
   WidgetTester tester,
   List<CachedMessage> messages, {
@@ -183,6 +215,24 @@ void main() {
     expect(groupGaps, dialogGaps);
   });
 
+  testWidgets('a reply above a photo stays inside the photo width', (
+    tester,
+  ) async {
+    await _pumpBubble(tester, _photoReply());
+
+    final quote = _rectOf(
+      tester,
+      find
+          .ancestor(of: find.text('Вы'), matching: find.byType(Container))
+          .first,
+    );
+    final caption = _rectOf(tester, find.text('Вот те раз, не может быть'));
+
+    expect(quote.width, closeTo(_photoWidth - 16, 1));
+    expect(quote.left, greaterThan(0));
+    expect(quote.right, lessThanOrEqualTo(caption.left + _photoWidth));
+  });
+
   testWidgets('a bubble without a header or reply still hugs its text', (
     tester,
   ) async {