fix(mini): address UI feedback and device status display

Correct battery colors, participant artwork, navigation icons, title layout, and map spacing.

Animate the binding countdown using the existing expiry, recover polling after transient failures, and show online and battery data on success. Keep current firmware messaging consistent with version availability.

Validation: WeChat mini-program build, 16 UI tests, and isolated developer-tool scenarios passed. Five pre-existing TypeScript errors remain; physical-device validation is pending.

banban-mini/src/pages/location/index.tsx

@@ -1,4 +1,5 @@
 import { getPageStyle } from '@/utils/page-style'
+import PageTitle from '@/components/page-title'
 import { setActiveTabRoute } from '@/utils/tab-bar'
 import { View, Text, Map } from '@tarojs/components'
 import { useState } from 'react'
@@ -381,7 +382,7 @@ export default function Location() {
   return (
     <View className='location-page' style={getPageStyle(true)}>
       <View className='page-header'>
-        <Text className='page-title'>设备定位</Text>
+        <PageTitle title='设备定位' />
       </View>
 
       {isGuest ? (