feat(brand): 应用图标、开屏资源与品牌字体切换为 ymb

pubspec.yaml

@@ -87,11 +87,30 @@ flutter:
   assets:
     - assets/icon/
     - assets/icon/splash_logo.png
-    - assets/icon/splash_logo_android12.png
     - assets/icon/rail/
     # 只打包代码实际引用的那张登录背景（其余 3 张留在仓库但不进包）。
     - assets/auth/bg_3.jpg
 
+  fonts:
+    - family: PlusJakartaSans
+      fonts:
+        - asset: assets/fonts/PlusJakartaSans-Regular.ttf
+          weight: 400
+        - asset: assets/fonts/PlusJakartaSans-Medium.ttf
+          weight: 500
+        - asset: assets/fonts/PlusJakartaSans-SemiBold.ttf
+          weight: 600
+        - asset: assets/fonts/PlusJakartaSans-Bold.ttf
+          weight: 700
+    - family: Outfit
+      fonts:
+        - asset: assets/fonts/Outfit-Regular.ttf
+          weight: 400
+        - asset: assets/fonts/Outfit-SemiBold.ttf
+          weight: 600
+        - asset: assets/fonts/Outfit-Bold.ttf
+          weight: 700
+
   # To add assets to your application, add an assets section, like this:
   # assets:
   #   - images/a_dot_burr.jpeg
@@ -126,13 +145,15 @@ flutter:
 flutter_launcher_icons:
   android: true
   ios: true
-  image_path: assets/icon/fruitshorts.png
-  adaptive_icon_background: "#FF6B2C"
-  adaptive_icon_foreground: assets/icon/fruitshorts.png
+  image_path: assets/icon/ymb.png
+  adaptive_icon_background: "#E9142E"
+  adaptive_icon_foreground: assets/icon/ymb_foreground.png
   remove_alpha_ios: true
 
-# 修改以下开屏配置后，必须重新执行：
-# dart run flutter_native_splash:create
+# 开屏页资源目前是手工维护的：Android 走 res/drawable*/launch_background.xml
+# （黑底暗红渐变 + 居中标识），iOS 走 LaunchImage.imageset 的完整参考图。
+# 不要再执行 `dart run flutter_native_splash:create`，它只会按 color 重新生成，
+# 会覆盖固定尺寸布局。使用 python3 tools/generate_brand_assets.py 生成资源。
 flutter_native_splash:
   color: "#000000"
   android: true
@@ -140,3 +161,4 @@ flutter_native_splash:
   web: false
   android_12:
     color: "#000000"
+    image: assets/icon/ymb_android12.png