feat: 新增多语言配置并优化语言加载逻辑

1. 新增多个页面的中英文多语言词条，包括会员卡协议、积分商品、收银台等
2. 新增退款商品选择、微信支付、电子名片等页面的语言包
3. 优化lang.js语言加载逻辑，支持蛇形命名转换和多路径匹配，完善$lang调用兼容处理

lang/en-us/contact/contact.js

@@ -1,11 +1,27 @@
 export const lang = {
+	title: 'Business Card',
 
 	// Section titles
 	enterpriseFiles: 'Enterprise Files',
 	enterpriseVideos: 'Enterprise Videos',
+	onlineMessage: 'Online Message',
+	exclusiveCustomerService: 'Exclusive Customer Service',
 
 	// Share
 	contactUs: 'Contact Us',
+	share: 'Share',
+	call: 'Call',
+	copy: 'Copy',
+	oneClickNavigation: 'Navigation',
+
+	// Message form
+	name: 'Name',
+	pleaseEnterName: 'Please enter your name',
+	contactInfo: 'Contact Info',
+	pleaseEnterMobile: 'Please enter your mobile number',
+	messageContent: 'Message',
+	pleaseEnterMessage: 'Please enter your message',
+	submit: 'Submit',
 
 	// Toast messages
 	videoUrlNotExist: 'Video URL does not exist',
@@ -14,5 +30,7 @@ export const lang = {
 	pleaseFillMessage: 'Please fill in the message content',
 	submitSuccess: 'Submitted successfully',
 	submitFailed: 'Submission failed, please try again',
+	copySuccess: 'Copied successfully',
+	copyFailed: 'Copy failed',
 
 }

lang/en-us/empty/index.js

@@ -0,0 +1,3 @@
+export const lang = {
+	title: ''
+};

lang/en-us/form/formdata.js

@@ -3,6 +3,7 @@ export const lang = {
 	// Form page - formdata
 	form: {
 		formdata: {
+			title: 'Form Details',
 			// Empty state messages
 			submitSuccess: 'Submitted successfully',
 			noFormInfo: 'Form information not available',

lang/en-us/index/diy.js

@@ -0,0 +1,3 @@
+export const lang = {
+	title: ''
+};

lang/en-us/login/find.js

@@ -1,4 +1,8 @@
 export const lang = {
+	title: 'Find Password',
+	accountPlaceholder: 'Please enter mobile number',
+	captchaPlaceholder: 'Please enter verification code',
+	next: 'Next',
 	// Find Password
 	find: {
 		// Step titles

lang/en-us/member/card_agreement.js

@@ -0,0 +1,3 @@
+export const lang = {
+	title: 'Member Card Agreement'
+};

lang/en-us/merch/detail.js

@@ -36,4 +36,9 @@ export const lang = {
 		reset: 'Reset',
 		confirm: 'Confirm',
 	},
+
+	modal: {
+		title: 'Tip',
+		merchantNotExist: 'Merchant does not exist',
+	},
 }

lang/en-us/order/refund_goods_select.js

@@ -0,0 +1,7 @@
+export const lang = {
+	title: 'Select Refund Items',
+	totalItems: '{count} items total',
+	next: 'Next',
+	selectGoods: 'Please select goods',
+	orderInfoNotFound: 'Order information not found'
+};

lang/en-us/pay/cashier.js

@@ -1,6 +1,7 @@
 export const lang = {
 	pay: {
 		cashier: {
+			title: 'Cashier',
 			// Pay button
 			confirmPay: 'Confirm Payment',
 			// Empty states

lang/en-us/pay/wx_pay.js

@@ -0,0 +1,10 @@
+export const lang = {
+	title: 'WeChat Pay',
+	openInBrowserTip: 'Tap the top-right menu and open in browser',
+	pay: {
+		wxPay: {
+			title: 'WeChat Pay',
+			openInBrowserTip: 'Tap the top-right menu and open in browser'
+		}
+	}
+};

lang/en-us/point/goods_list.js

@@ -1,4 +1,6 @@
 export const lang = {
+	title: 'Point Products',
+
 	// Search
 	searchPlaceholder: 'Please enter product keywords',
 

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

@@ -4,6 +4,7 @@ export const lang = {
 	seal: {
 		medium: {
 			search: {
+				title: 'Medium Material Search',
 				// Search input placeholder
 				placeholder: 'Enter keywords to search',
 				// Search results title

lang/en-us/webview/webview.js

@@ -0,0 +1,3 @@
+export const lang = {
+	title: ''
+};