feat: 支持会员编号

app/(tabs)/personal.tsx

@@ -212,6 +212,9 @@ export default function PersonalScreen() {
           <TouchableOpacity onPress={handleUserNamePress} activeOpacity={0.7}>
             <Text style={styles.userName}>{displayName}</Text>
           </TouchableOpacity>
+          {userProfile.memberNumber && (
+            <Text style={styles.userMemberNumber}>会员编号: {userProfile.memberNumber}</Text>
+          )}
         </View>
         <TouchableOpacity style={styles.editButton} onPress={() => pushIfAuthedElseLogin('/profile/edit')}>
           <Text style={styles.editButtonText}>{isLoggedIn ? '编辑' : '登录'}</Text>
@@ -480,6 +483,11 @@ const styles = StyleSheet.create({
     color: '#9370DB',
     fontWeight: '500',
   },
+  userMemberNumber: {
+    fontSize: 10,
+    color: '#6C757D',
+    marginTop: 4,
+  },
   editButton: {
     backgroundColor: '#9370DB',
     paddingHorizontal: 16,