refactor: 统一项目内国际化key的命名空间格式

本次提交对全项目的国际化调用进行了规范化重构：
1. 为中文/英文语言包新增了avatar和gender的别名映射，兼容旧有headImg/sex写法
2. 修正了lang.js中的注释路径错误
3. 将所有页面和组件内的$lang调用从短路径改为带业务模块前缀的完整命名空间路径，例如将$lang('title')改为$lang('article.list.title')
4. 优化了i18n-lazy.js的注释说明，补充了正确的key命名格式示例
5. 统一了分销、订单、会员等模块的国际化key层级，确保所有语言调用路径一致

pages_promotion/point/result.vue

@@ -3,10 +3,10 @@
 		<view class="image-wrap">
 			<image :src="$util.img('public/uniapp/pay/pay_success.png')" class="result-image" mode="widthFix" show-menu-by-longpress></image>
 		</view>
-		<view class="msg">{{ $lang('exchangeSuccess') }}</view>
+		<view class="msg">{{ $lang('point.result.exchangeSuccess') }}</view>
 		<view class="action">
-			<view class="btn color-base-border color-base-text" @click="toOrderList()">{{ $lang('see') }}</view>
-			<view class="btn go-home color-base-bg" @click="toIndex">{{ $lang('goHome') }}</view>
+			<view class="btn color-base-border color-base-text" @click="toOrderList()">{{ $lang('point.result.see') }}</view>
+			<view class="btn go-home color-base-bg" @click="toIndex">{{ $lang('point.result.goHome') }}</view>
 		</view>
 	</view>
 </template>