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/fenxiao/promote.vue

@@ -10,16 +10,16 @@
 						<image class="money-bg" :src="$util.img('public/uniapp/fenxiao/promote/money.png')"
 							mode="aspectFill"></image>
 						<view class="content">
-							{{ $lang('totalEarnings') }}
+							{{ $lang('fenxiao.promote.totalEarnings') }}
 							<text class="money-text">{{ detailData.total_commission }}</text>
-							{{ $lang('currencyUnit') }}
+							{{ $lang('fenxiao.promote.currencyUnit') }}
 						</view>
 					</view>
 				</view>
 				<view class="earnings-body">
 					<view class="earnings-tab">
-						<text :class="{ active: tabIndex == 0 }" @click="tabCut(0)">{{ $lang('invitedFriends') }}</text>
-						<text :class="{ active: tabIndex == 1 }" @click="tabCut(1)">{{ $lang('orderedFriends') }}</text>
+						<text :class="{ active: tabIndex == 0 }" @click="tabCut(0)">{{ $lang('fenxiao.promote.invitedFriends') }}</text>
+						<text :class="{ active: tabIndex == 1 }" @click="tabCut(1)">{{ $lang('fenxiao.promote.orderedFriends') }}</text>
 					</view>
 					<scroll-view scroll-y="true" class="earnings-content-wrap" @scrolltolower="getTeam()">
 						<view class="earnings-list" v-if="promote.list.length">
@@ -32,7 +32,7 @@
 								</view>
 							</view>
 						</view>
-						<view class="earnings-empty" v-else>{{ $lang('noInvitedFriends') }}</view>
+						<view class="earnings-empty" v-else>{{ $lang('fenxiao.promote.noInvitedFriends') }}</view>
 					</scroll-view>
 				</view>
 			</view>
@@ -41,9 +41,9 @@
 					mode="aspectFit" show-menu-by-longpress></image>
 				<view class="content" v-if="promoteContent.content"><rich-text
 						:nodes="promoteContent.content"></rich-text></view>
-				<view class="rules-empty" v-else>{{ $lang('noActivityRules') }}</view>
+				<view class="rules-empty" v-else>{{ $lang('fenxiao.promote.noActivityRules') }}</view>
 			</view>
-			<view class="active-btn"><button type="primary" @click="toPoster()">{{ $lang('inviteFriends') }}</button></view>
+			<view class="active-btn"><button type="primary" @click="toPoster()">{{ $lang('fenxiao.promote.inviteFriends') }}</button></view>
 			<ns-copyright></ns-copyright>
 			<ns-login ref="login"></ns-login>
 			<loading-cover ref="loadingCover"></loading-cover>
@@ -79,7 +79,7 @@ export default {
 		setTimeout(() => {
 			if (!this.addonIsExist.fenxiao) {
 				this.$util.showToast({
-					title: this.$lang('merchantNotOpenFenxiao'),
+					title: this.$lang('fenxiao.promote.merchantNotOpenFenxiao'),
 					mask: true,
 					duration: 2000
 				});