feat(miniprogram): add reusable web-view shell for H5 business pages.

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

miniprogram/pages.json

@@ -51,6 +51,13 @@
       "style": {
         "navigationStyle": "custom"
       }
+    },
+    {
+      "path": "pages/common/mp-webview",
+      "style": {
+        "navigationStyle": "custom",
+        "navigationBarTitleText": "运输计划"
+      }
     }
     // #ifdef H5
     ,