feat: 新增多语言文案、优化导航及工具函数，修复部分业务逻辑

1. 新增多语言资源文件，覆盖文章、预约日期、会员信息、优惠券、表单、购物车、积分商城、分销、AI聊天等多个模块
2. 优化底部导航组件，使用多语言配置替代硬编码文案
3. 重构工具函数，新增从后端数据提取多语言文案的工具方法
4. 修复邀请好友页面的保存提示文案，替换为多语言版本
5. 修复商品SKU组件的提示文案，使用多语言配置
6. 重构AI聊天页面的帮助文档和回复模板，使用多语言配置
7. 优化空状态组件，支持多语言默认文案
8. 修复跳转逻辑，补全参数传递
9. 新增本地开发环境配置

lang/en-us/fenxiao/index.js

@@ -1,5 +1,70 @@
 export const lang = {
 	//title为每个页面的标题
 	// title: 'Distribution Center',
-	title: ''
-}
+	title: '',
+
+	// Header member info
+	superiorAgent: 'Superior Agent',
+	headquarters: 'Headquarters',
+	invitedSuccess: 'Invited successfully: {count} people',
+
+	// Commission / Balance
+	withdrawable: 'Available {withdraw} (Yuan)',
+	withdrawDetail: 'Withdrawal Details',
+	withdrawing: 'Withdrawing (Yuan)',
+	pendingDeposit: 'Pending (Yuan)',
+	withdraw: 'Withdraw',
+
+	// Menu items
+	myFans: 'My Fans',
+	invitedUsers: 'Invited Users',
+	detail: 'Details',
+	totalAccumulated: 'Total {account} {symbol}{amount}',
+	order: 'Orders',
+	orderDetail: 'Order Details',
+	myInviteCode: 'My Invite Code',
+	inviteFriendsEarnRewards: 'Invite friends, earn rewards',
+
+	// Empty / Not applied state
+	notFenxiaoYet: 'You are not a {name} yet, please submit an application',
+	joinNow: 'Join Now',
+
+	// Task popup
+	quickUpgradeTips: 'Quick Upgrade Tips',
+	completed: 'Completed',
+	incomplete: 'Incomplete',
+	goComplete: 'Go Complete',
+	tip: 'Tip',
+	anyConditionUpgrade: 'Meet any one condition to upgrade',
+	allConditionsUpgrade: 'All conditions must be met to upgrade',
+
+	// Page title suffix
+	center: 'Center',
+
+	// Toast messages
+	merchantNotOpenFenxiao: 'Merchant has not enabled distribution',
+	fenxiaoFrozen: 'Distributor account has been frozen',
+
+	// Upgrade tasks - Subordinate consumption
+	subordinateConsumption: 'Subordinate Consumption',
+	subordinateOrderCount: '{count} subordinate orders completed',
+	subordinateOrderCountTip: 'Number of orders placed by the distributor and their direct referred members',
+	subordinateOrderAmount: 'Subordinate order amount reaches {amount} Yuan',
+	subordinateOrderAmountTip: 'Total order amount of the distributor and their direct referred members',
+	subordinateCommissionAmount: 'Total {account} from subordinate consumption reaches {amount} Yuan',
+	subordinateCommissionAmountTip: 'Total {account} from orders of the distributor and their direct referred members',
+
+	// Upgrade tasks - Self consumption
+	selfConsumption: 'Self Consumption',
+	selfOrderCount: '{count} self orders completed',
+	selfOrderCountTip: 'Number of orders placed by the distributor themselves',
+	selfOrderAmount: 'Self order amount reaches {amount} Yuan',
+	selfOrderAmountTip: 'Total order amount of the distributor\'s own purchases',
+
+	// Upgrade tasks - Invite friends
+	inviteFriends: 'Invite Friends',
+	inviteFriendCount: 'Invite {count} friends',
+	inviteFriendCountTip: 'Number of direct subordinate members (including those who have applied to become distributors)',
+	inviteFenxiaoCount: 'Invite {count} friends to become distributors',
+	inviteFenxiaoCountTip: 'Number of direct subordinate distributors',
+}