新增自定义主 TabBar 与全局扫码核销流程

引入可配置的自定义 TabBar（含订单角标）、中央扫码入口跳转核销订单页，并更新迁移清单中最近完成的模块。

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

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

@@ -0,0 +1,21 @@
+{
+  "images" : [
+    {
+      "filename" : "tab_order_unselected.png",
+      "idiom" : "universal",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}