feat: add multi-language page configs and fix i18n issues

1. 新增多套多语言页面翻译文件，覆盖文件列表、案例展示、商户相关、印章相关、分销、小程序发货等页面
2. 修复语言包拼写错误：loginTpis → loginTips
3. 重构语言包合并逻辑，使用深度合并替代浅合并避免子key丢失
4. 优化导航栏标题设置，统一使用$langConfig.title替代硬编码标题
5. 修复底部导航栏语言切换不响应的问题，改为响应式获取当前语言
6. 完善英文通用语言包，补充订单、购物车、会员相关翻译
7. 修复商品详情页默认标题为空的问题，设置为"商品详情"

lang/en-us/agreement/contenr.js

@@ -0,0 +1,4 @@
+export const lang = {
+	//title为每个页面的标题
+	title: 'Agreement',
+}

lang/en-us/ai-chat/index.js

@@ -34,7 +34,10 @@ export const lang = {
 	copySuccess: 'Copied',
 	copySelected: 'Copied selected content',
 	copyFail: 'Copy failed',
+	copyFailWithReason: 'Copy failed: {reason}',
 	openingFile: 'Opening file...',
+	openingFileName: 'Opening file: {name}',
+	openingFileTitle: 'Opening: {title}',
 	fileOpenFail: 'Failed to open file',
 	loadHistoryFail: 'Failed to load history',
 	about: '0B',
@@ -64,6 +67,7 @@ export const lang = {
 	improveService: 'We will improve our service',
 	openLink: 'Open Link',
 	confirmOpenLink: 'Are you sure you want to open this link: ',
+	confirmOpenLinkText: 'Are you sure you want to open this link: {url}?',
 	operationFailed: 'Operation failed, please try again',
 	prompt: 'Prompt',
 	serviceTypeNotSupported: 'Current service type does not support this page',

lang/en-us/cases/index.js

@@ -0,0 +1,4 @@
+export const lang = {
+	//title为每个页面的标题
+	title: 'Case Studies',
+}

lang/en-us/common.js

@@ -34,4 +34,34 @@ export const lang = {
 	loginTips: 'Click to login and enjoy more exciting information',
 	toLogin: 'Go to login',
 	toGoodsCategoryPage: 'Go shopping',
+
+	// 订单状态
+	waitpay: 'Pending Payment',
+	waitsend: 'Pending Shipment',
+	waitconfirm: 'Pending Receipt',
+	activist: 'After-sales',
+	completed: 'Completed',
+
+	// 购买/购物车
+	buy: 'Buy',
+	buyNow: 'Buy Now',
+	addToCart: 'Add to Cart',
+	addToCartSuccess: 'Added to Cart',
+	addToCartFail: 'Failed to Add to Cart',
+	addToCartFailMax: 'Maximum purchase quantity reached',
+	addToCartFailMin: 'Minimum purchase quantity not met',
+	addToCartFailStock: 'Insufficient Stock',
+
+	// 咨询
+	consult: 'Consult Now',
+	consultSuccess: 'Consultation Successful',
+	consultFail: 'Consultation Failed',
+
+	// 会员相关
+	privacyPolicy: 'Privacy Policy',
+	registrationAgreement: 'Registration Agreement',
+	cancellation: 'Account Cancellation',
+	logout: 'Log Out',
+	logoutTitle: 'Tip',
+	logoutContent: 'Are you sure you want to log out?',
 }

lang/en-us/fenxiao/child_fenxiao.js

@@ -0,0 +1,4 @@
+export const lang = {
+	//title为每个页面的标题
+	title: 'Distributors',
+}

lang/en-us/fenxiao/ranking_list.js

@@ -0,0 +1,4 @@
+export const lang = {
+	//title为每个页面的标题
+	title: 'Ranking',
+}

lang/en-us/file-preview/file-preview.js

@@ -0,0 +1,4 @@
+export const lang = {
+	//title为每个页面的标题
+	title: 'File Preview',
+}

lang/en-us/files/list.js

@@ -0,0 +1,4 @@
+export const lang = {
+	//title为每个页面的标题
+	title: 'View Files',
+}

lang/en-us/goods/category.js

@@ -2,5 +2,6 @@ export const lang = {
 	//title为每个页面的标题
 	title: 'Goods Category',
 	search: 'Search',
-	seeMore : 'See More'
+	seeMore : 'See More',
+	Make: 'Consult Now'
 }

lang/en-us/goods/detail.js

@@ -9,6 +9,7 @@ export const lang = {
 	leave:'leave a message',
 	make:'make an appointment',
 	makebtn:'make',
+	commissiontext: 'Commission',
 	
 	sales:'sales',
 	stock:'stock',

lang/en-us/member/account_edit.js

@@ -1,6 +1,7 @@
 export const lang = {
 	//title为每个页面的标题
 	title: 'Edit Account',
+	addTitle: 'Add Account',
 	name: 'Name',
 	namePlaceholder: 'Please enter real name',
 	mobilePhone: 'Mobile Number',

lang/en-us/member/address_edit.js

@@ -1,6 +1,7 @@
 export const lang = {
 	//title为每个页面的标题
 	title: 'Edit Shipping Address',
+	addTitle: 'Add Shipping Address',
 	consignee: 'Name',
 	consigneePlaceholder: 'Consignee Name',
 	mobile: 'Mobile',

lang/en-us/member/index.js

@@ -2,7 +2,7 @@ export const lang = {
 	//title为每个页面的标题
 	title: 'Member Center',
 	login: 'Login',
-	loginTpis: 'Login experience',
+	loginTips: 'Login experience',
 	memberLevel: 'Member Level',
 	moreAuthority: 'More Privileges',
 	allOrders: 'All Orders',
@@ -11,6 +11,7 @@ export const lang = {
 	readyDelivery: 'Pending Shipment',
 	waitDelivery: 'Pending Receipt',
 	refunding: 'Refunding',
+	getDynacode: 'Get Verification Code',
 	// 会员中心入口
 	sign: 'Check-in',
 	personInfo: 'Personal Information',

lang/en-us/merch/detail.js

@@ -0,0 +1,4 @@
+export const lang = {
+	//title为每个页面的标题
+	title: 'Merchant Home',
+}

lang/en-us/merch/edit.js

@@ -0,0 +1,5 @@
+export const lang = {
+	//title为每个页面的标题
+	title: 'Edit Product',
+	addTitle: 'Add Product',
+}

lang/en-us/merch/merchcategory.js

@@ -0,0 +1,4 @@
+export const lang = {
+	//title为每个页面的标题
+	title: 'Merchants',
+}

lang/en-us/seal/medium/detail.js

@@ -0,0 +1,4 @@
+export const lang = {
+	//title为每个页面的标题
+	title: 'Search Results',
+}

lang/en-us/seal/medium/search.js

@@ -0,0 +1,4 @@
+export const lang = {
+	//title为每个页面的标题
+	title: 'Material Search',
+}

lang/en-us/seal/structure.js

@@ -0,0 +1,4 @@
+export const lang = {
+	//title为每个页面的标题
+	title: 'Structure Selection',
+}

lang/en-us/weapp/order_shipping.js

@@ -0,0 +1,4 @@
+export const lang = {
+	//title为每个页面的标题
+	title: 'Mini Program Shipping',
+}