style(home): 放大底部导航图标与文字

docs/plans/PROGRESS.md

@@ -1162,3 +1162,9 @@ $ flutter test
 - `AppRootTab` 新增 `selectedAssetPath`，首页选中使用 `film_reel_filled.png`，未选中使用描边版。
 - 共享导航保持 `ColorFiltered(srcIn)` 与 26×26，缺图按选中态回退实心/描边胶片图标。
 - 推荐、追剧、我的不变；测试断言同步，按当前流程未执行 analyze/test。
+
+## 2026-10-22 底部导航图标与文字加大
+
+- 公共 token 调整为图标 30、文字 13、图标文字间距 5、内容高度 62。
+- 图片首页图标同步使用 30×30；SafeArea 仍在内容区外独立追加，四等分布局不变。
+- 尺寸测试断言同步，按当前流程未执行 analyze/test。

lib/core/theme/app_dimens.dart

@@ -36,8 +36,8 @@ abstract final class AppDimens {
   static const double previewCardTitle = 13;
   static const double previewSectionTitle = 14;
   static const double chipFont = 10;
-  static const double navLabel = 11;
-  static const double navLabelGap = 4;
+  static const double navLabel = 13;
+  static const double navLabelGap = 5;
 
   static const double buttonHeight = 48;
   static const double primaryButtonHeight = 52;
@@ -48,8 +48,8 @@ abstract final class AppDimens {
   static const double tapTarget = 44;
   static const double contentHeaderHeight = 46;
 
-  static const double navHeight = 56;
-  static const double navIcon = 26;
+  static const double navHeight = 62;
+  static const double navIcon = 30;
   static const double progressHeight = 3;
   static const double progressRadius = 2;
   static const double progressLineHeight = 3;

test/home/app_bottom_nav_test.dart

@@ -103,7 +103,7 @@ void main() {
     expect(selectedIcon.color, AppColors.navSelected);
     expect(
       tester.getSize(find.byIcon(Icons.movie_rounded)),
-      const Size(26, 26),
+      const Size.square(AppDimens.navIcon),
     );
     expect(
       tester.getTopLeft(find.text('Home')).dy -

test/theme/app_dimens_test.dart

@@ -18,13 +18,13 @@ void main() {
     expect(AppDimens.listTitle, 15);
     expect(AppDimens.sectionTitle, 16);
     expect(AppDimens.pageTitle, 20);
-    expect(AppDimens.navLabel, 11);
-    expect(AppDimens.navLabelGap, 4);
-    expect(AppDimens.navIcon, 26);
+    expect(AppDimens.navLabel, 13);
+    expect(AppDimens.navLabelGap, 5);
+    expect(AppDimens.navIcon, 30);
     expect(AppDimens.buttonHeight, 48);
     expect(AppDimens.primaryButtonHeight, 52);
     expect(AppDimens.tapTarget, 44);
-    expect(AppDimens.navHeight, 56);
+    expect(AppDimens.navHeight, 62);
     expect(AppDimens.progressHeight, 3);
   });
 }