fix: replace facial/medical terms with neutral position labels

Region names: 左脸→左区, 右脸→右区, 额头→上区, 下巴→下区,
鼻唇→中区, 左眼→左上区, 右眼→右上区, 全脸→全区域.
Replace 面部/面罩 with 设备 in wear-check and auto-scan pages.

miniprogram/services/ble/protocol.js

@@ -312,8 +312,8 @@ function parseException(payload) {
 function getRegionName(mask) {
   var names = []
   var bits = [
-    [0x01, '左脸颊'], [0x02, '右脸颊'], [0x04, '额头'],
-    [0x08, '下巴'], [0x10, '鼻部'], [0x20, '左眼周'], [0x40, '右眼周']
+    [0x01, '左区'], [0x02, '右区'], [0x04, '上区'],
+    [0x08, '下区'], [0x10, '中区'], [0x20, '左上区'], [0x40, '右上区']
   ]
   for (var i = 0; i < bits.length; i++) {
     if (mask & bits[i][0]) names.push(bits[i][1])