集成 MJRefresh 并重构主 TabBar 为系统 TabView 样式。

新增 SwiftUI 桥接层与单元测试，更新 Tab 图标资源命名和多倍图，同步调整 UI Test 的 Tab/扫码定位逻辑。

Co-authored-by: Cursor <cursoragent@cursor.com>

suixinkan/Assets.xcassets/tab_order_selected.imageset/Contents.json

@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "filename" : "tab_order_selected.png",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "filename" : "tab_order_selected@2x.png",
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "filename" : "tab_order_selected@3x.png",
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}