fix: correct page flow — wear-check before mode select, smart mode to auto-scan

- wear-check onNext → treatment-setup (was auto-scan)
- treatment-setup smart mode → auto-scan (was wear-check)
Flow: index → wear-check → treatment-setup → normal: treat / smart: auto-scan → treat

miniprogram/pages/treatment-setup/treatment-setup.js

@@ -81,7 +81,7 @@ Page({
 
     if (self.data.selectedMode === 1) {
       self.setData({ submitting: false })
-      wx.navigateTo({ url: '/pages/wear-check/wear-check?regions=' + mask })
+      wx.navigateTo({ url: '/pages/auto-scan/auto-scan?regions=' + mask })
       return
     }