fix: 紫微斗数模块navigationBar标题改为'紫微斗数测算'，颜色统一为#8B5CF6

xuan-deduct-uniapp/src/pages.json

@@ -91,8 +91,8 @@
     {
       "path": "pages/ziwei/ziwei",
       "style": {
-        "navigationBarTitleText": "紫微斗数排盘",
-        "navigationBarBackgroundColor": "#7C3AED",
+        "navigationBarTitleText": "紫微斗数测算",
+        "navigationBarBackgroundColor": "#8B5CF6",
         "navigationBarTextStyle": "white"
       }
     },
@@ -100,7 +100,7 @@
       "path": "pages/ziwei/result",
       "style": {
         "navigationBarTitleText": "紫微命盘",
-        "navigationBarBackgroundColor": "#7C3AED",
+        "navigationBarBackgroundColor": "#8B5CF6",
         "navigationBarTextStyle": "white"
       }
     },