merge: 收紧二级标签间距

docs/plans/PROGRESS.md

@@ -1111,7 +1111,7 @@ $ flutter test
 
 ## 2026-10-22 首页布局对齐修正
 
-- 一级分类未选 18/w400、选中 20/w700；二级 chips 间距 24、15/w600，并以稳定 AnimatedContainer 切换。
+- 一级分类未选 18/w400、选中 20/w700；二级 chips 间距 10、左右 8、15/w600，并以稳定 AnimatedContainer 切换。
 - 四类卡片去底板/描边，封面统一 3:4、8 圆角、行距 10、封底标题间距 6；状态角标为右上角紧凑异形丝带。
 - 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。

lib/core/theme/app_dimens.dart

@@ -109,7 +109,7 @@ abstract final class AppDimens {
   );
   static const double homeSecondaryTagFont = 15;
   static const double homeSecondaryTagHeight = 26;
-  static const double homeSecondaryTagHorizontalPadding = 10;
+  static const double homeSecondaryTagHorizontalPadding = 8;
   static const double homeSecondaryTagRadius = 13;
   static const Duration homeSecondaryTagAnimationDuration = Duration(
     milliseconds: 150,
@@ -119,7 +119,7 @@ abstract final class AppDimens {
   static const double homeSecondaryFilterIcon = 16;
   static const double homeSecondaryFilterStroke = 1.7;
   static const double homePrimaryCategoryGap = 24;
-  static const double homeSecondaryTagGap = 24;
+  static const double homeSecondaryTagGap = 10;
   static const double homeSearchTopGap = 0;
   static const double homeSearchPrimaryGap = 8;
   static const double homePrimarySecondaryGap = 8;

test/home/home_preview_layout_test.dart

@@ -176,6 +176,12 @@ void main() {
       (unselectedTagChip.decoration! as BoxDecoration).color,
       AppColors.transparent,
     );
+    expect(
+      unselectedTagChip.padding,
+      const EdgeInsets.symmetric(
+        horizontal: AppDimens.homeSecondaryTagHorizontalPadding,
+      ),
+    );
     final primaryStart = tester.getTopLeft(find.text('Featured'));
     final pageStart = tester.getTopLeft(searchBox);
     expect(primaryStart.dx, pageStart.dx);