feat: 新增多语言文案与组件国际化适配

本次提交完成了大量多语言相关的新增与优化工作：
1. 新增充值、案例、会员资产、订单等页面的中文/英文翻译文案
2. 新增企业微信客服、时间选择、支付弹窗等组件的多语言包
3. 优化工具函数与自定义页面的多语言适配，替换硬编码提示文案
4. 新增会员等级规则、积分商品、退款管理等页面的国际化支持
5. 修复企业微信JS-SDK的错误提示文案硬编码问题

lang/en-us/common.js

@@ -21,6 +21,13 @@ export const lang = {
 		searchTip: 'Please enter search keywords'
 	},
 
+	// diy custom page
+	diy: {
+		networkError: 'Network error, please try again later',
+		noDiyData: 'Custom page data not configured',
+		locationNotAvailable: 'Location not available',
+	},
+
 	//customer service
 	customer: {
 		weChatKefu: 'WeChat Customer Service',
@@ -53,6 +60,65 @@ export const lang = {
 		fromFloatButton: 'Inquiry from floating button',
 	},
 
+	// WeChat Work JS-SDK
+	wxworkJssdk: {
+		notInitialized: 'WeChat Work JS-SDK not initialized',
+	},
+
+	// WeChat Channel
+	wechatChannel: {
+		notWechat: 'Current environment is not a WeChat Mini Program',
+		lowVersion: 'WeChat base library version is too low, requires 2.19.2 or above',
+		notSupported: 'Current environment does not support WeChat Channel',
+		missingFields: 'Missing required field: {field}',
+		playFailed: 'WeChat video playback failed!',
+	},
+
+	// util utility functions
+	util: {
+		// upload
+		uploading: 'Uploading image',
+		uploadSuccess: 'Upload successful',
+		uploadFailed: 'Upload failed',
+		// copy
+		copySuccess: 'Copied successfully',
+		// date format
+		dateYear: 'Y',
+		dateMonth: 'M',
+		dateDay: 'D',
+		// week days
+		weekSunday: 'Sun',
+		weekMonday: 'Mon',
+		weekTuesday: 'Tue',
+		weekWednesday: 'Wed',
+		weekThursday: 'Thu',
+		weekFriday: 'Fri',
+		weekSaturday: 'Sat',
+	},
+
+	// AI service
+	aiService: {
+		// WebSocket errors
+		wsDomainInvalid: 'WebSocket domain configuration invalid',
+		wsAuthFailed: 'WebSocket authentication failed',
+		wsConnectionFailed: 'WebSocket connection failed',
+		wsConnectionClosed: 'WebSocket connection closed unexpectedly',
+		// Service errors
+		serviceUnavailable: 'AI service temporarily unavailable, please try again later',
+		serviceResponseError: 'AI service returned an error',
+		invalidResponse: 'Invalid response',
+		// Service status
+		statusNormal: 'Service normal',
+		statusAbnormal: 'Service abnormal',
+		statusCheckFailed: 'Service check failed',
+		// Conversation
+		conversationIdRequired: 'conversation_id is a required parameter',
+		getHistoryFailed: 'Failed to get conversation history',
+		getHistoryError: 'Error getting conversation history, please try again later',
+		// Connection
+		connectionFailed: 'Connection failed',
+	},
+
 	getDynacode: 'Get Code',
 
 	login: 'Login/Register',