fix: remove all medical device terms from user-facing text

Replace '光子美容仪' with '智美'/'智能面膜'/'我的设备' throughout.
Replace '护理' with '使用' in all UI text.
Replace '皮肤' with '检测'/'智能' where applicable.
Replace 🌸 with 💎 for brand identity.
Internal code (variable names, API paths, file names) unchanged.

miniprogram/pages/treating/treating.js

@@ -16,17 +16,17 @@ Page({
     paused: false,
     completed: false,
     startedAt: 0,
-    regionText: '全脸护理',
+    regionText: '全脸使用',
   },
 
   _getRegionText: function (regionMask) {
     var REGION_MAP = {1:'左脸', 2:'右脸', 4:'额头', 8:'下巴', 16:'鼻', 32:'左眼', 64:'右眼'}
-    if (regionMask === 0x7F) return '全脸护理'
+    if (regionMask === 0x7F) return '全脸使用'
     var names = []
     for (var bit in REGION_MAP) {
       if (regionMask & parseInt(bit)) names.push(REGION_MAP[bit])
     }
-    return names.length > 0 ? names.join('+') + '护理' : '全脸护理'
+    return names.length > 0 ? names.join('+') + '使用' : '全脸使用'
   },
 
   onLoad: function (options) {
@@ -195,7 +195,7 @@ Page({
   onException: function (err) {
     wx.showModal({
       title: '设备异常',
-      content: err.error_msg || '护理过程中出现异常',
+      content: err.error_msg || '使用过程中出现异常',
       showCancel: false,
       complete: function () {
         wx.navigateBack()
@@ -229,7 +229,7 @@ Page({
     }
     wx.showModal({
       title: '连接丢失',
-      content: '设备蓝牙连接已断开，无法恢复。本次护理数据将保存。',
+      content: '设备蓝牙连接已断开，无法恢复。本次使用数据将保存。',
       showCancel: false,
       complete: function () {
         self.finishAsComplete()
@@ -244,8 +244,8 @@ Page({
   onStop: function () {
     var self = this
     wx.showModal({
-      title: '结束护理',
-      content: '确定要提前结束本次护理吗？',
+      title: '结束使用',
+      content: '确定要提前结束本次使用吗？',
       success: function (res) {
         if (res.confirm) {
           ble.stopTreatment().catch(function () {}).then(function () {

miniprogram/pages/treating/treating.json

@@ -1,4 +1,4 @@
 {
   "navigationStyle": "custom",
-  "navigationBarTitleText": "护理中"
+  "navigationBarTitleText": "使用中"
 }

miniprogram/pages/treating/treating.wxml

@@ -1,8 +1,8 @@
 <view class="page">
   <view class="page-header page-header-blue" style="padding-top: {{statusBarHeight + 24}}px;">
     <view class="nav-back nav-back-light" bindtap="onBack">‹ 返回</view>
-    <view class="page-header-title">护理中</view>
-    <view class="page-header-subtitle">正在护理...</view>
+    <view class="page-header-title">使用中</view>
+    <view class="page-header-subtitle">正在使用...</view>
   </view>
 
   <view class="page-content">
@@ -23,10 +23,10 @@
       <text class="relax-icon">💆</text>
       <view class="relax-text">
         <text>请放松心情</text>
-        <text>享受护理时光</text>
+        <text>享受美好时光</text>
       </view>
     </view>
 
-    <button class="btn-primary btn-primary-red" bindtap="onStop">停止护理</button>
+    <button class="btn-primary btn-primary-red" bindtap="onStop">停止使用</button>
   </view>
 </view>