fix(home): 调整封面播放量图标与位置

docs/plans/PROGRESS.md

@@ -1115,5 +1115,5 @@ $ flutter test
 - 四类卡片去底板/描边，封面 8 圆角、行距 10、封底标题间距 6；热剧/新剧/漫剧角标为右上角 16 高紧凑异形丝带。
 - 标题下方恢复左对齐题材文字，使用 `|` 分隔、灰色小字，与封面状态角标保持独立。
 - 首页搜索栏到一级、一级到二级、二级到网格间距为 8/8/10；非精选 tab 直接以 10 衔接网格。
-- 播放量回到封面右下角，使用 spark 图标与 12/w400 纯文字、`w` 格式，并加极淡底部渐变；四类列表共用。
+- 播放量贴封面右下角（底 2、右 6），火焰图标 11 + 12/w400 纯文字，间距 4，并保留极淡底部渐变。
 - 全部短剧的地区、字幕、配音筛选 UI 已占位；以下接口待补：地区、字幕/配音筛选数据。

lib/core/theme/app_dimens.dart

@@ -88,8 +88,9 @@ abstract final class AppDimens {
   static const double cardViewsFont = 11;
   static const double cardViewsIcon = 11;
   static const double cardPlayCountFont = 12;
-  static const double cardPlayCountGap = 2;
-  static const double cardPlayCountBottom = 6;
+  static const double cardPlayCountGap = 4;
+  static const double cardPlayCountBottom = 2;
+  static const double cardPlayCountRight = 6;
   static const double cardPlayCountScrimHeight = 32;
   static const double cardGenreRibbonHeight = 16;
   static const double cardGenreRibbonLeftInset = 4;

lib/core/widgets/cover_play_count.dart

@@ -18,7 +18,7 @@ class CoverPlayCount extends StatelessWidget {
       crossAxisAlignment: CrossAxisAlignment.center,
       children: [
         const Icon(
-          Icons.auto_awesome_rounded,
+          Icons.local_fire_department_rounded,
           color: AppColors.textPrimary,
           size: AppDimens.cardViewsIcon,
         ),

lib/pages/following/following_grid_card.dart

@@ -87,7 +87,7 @@ class FollowingGridCard extends StatelessWidget {
                   child: CoverBottomScrim(),
                 ),
                 Positioned(
-                  right: 0,
+                  right: AppDimens.cardPlayCountRight,
                   bottom: AppDimens.cardPlayCountBottom,
                   child: CoverPlayCount(
                     key: Key('following-views-$dramaId'),

lib/pages/home/widgets/home_feed_card.dart

@@ -109,7 +109,7 @@ class HomeFeedCard extends StatelessWidget {
               child: CoverBottomScrim(),
             ),
             Positioned(
-              right: 0,
+              right: AppDimens.cardPlayCountRight,
               bottom: AppDimens.cardPlayCountBottom,
               child: CoverPlayCount(
                 key: Key('home-feed-views-${drama.id}'),

lib/pages/recommend/widgets/recommend_section_card.dart

@@ -69,7 +69,7 @@ class RecommendSectionCard extends StatelessWidget {
                       child: CoverBottomScrim(),
                     ),
                     Positioned(
-                      right: 0,
+                      right: AppDimens.cardPlayCountRight,
                       bottom: AppDimens.cardPlayCountBottom,
                       child: CoverPlayCount(
                         key: Key('recommend-views-$sectionKey-${drama.id}'),

test/following/following_page_test.dart

@@ -101,7 +101,7 @@ void main() {
     expect(
       find.descendant(
         of: find.byKey(const Key('following-views-the-signal-demo')),
-        matching: find.byIcon(Icons.auto_awesome_rounded),
+        matching: find.byIcon(Icons.local_fire_department_rounded),
       ),
       findsOneWidget,
     );

test/home/home_card_style_test.dart

@@ -82,8 +82,8 @@ void main() {
       findsOneWidget,
     );
     expect(
-      tester.getTopRight(views).dx,
-      closeTo(tester.getTopRight(cover).dx, 1),
+      tester.getTopRight(cover).dx - tester.getTopRight(views).dx,
+      AppDimens.cardPlayCountRight,
     );
     expect(
       tester.getBottomLeft(cover).dy - tester.getBottomLeft(views).dy,
@@ -96,7 +96,7 @@ void main() {
     expect(
       find.descendant(
         of: views,
-        matching: find.byIcon(Icons.auto_awesome_rounded),
+        matching: find.byIcon(Icons.local_fire_department_rounded),
       ),
       findsOneWidget,
     );

test/recommend/recommend_sections_test.dart

@@ -122,7 +122,7 @@ void main() {
     expect(views.style?.color, AppColors.textPrimary);
     final viewIcon = find.descendant(
       of: find.byKey(const Key('recommend-views-hits-the-signal-demo')),
-      matching: find.byIcon(Icons.auto_awesome_rounded),
+      matching: find.byIcon(Icons.local_fire_department_rounded),
     );
     expect(viewIcon, findsOneWidget);
     final badge = find.byKey(