feat: add and optimize multilingual text resources

- add new language packs for multiple pages and components including category, cart, order, member center, distribution, etc.
- add Chinese and English translations for new features and UI text
- fix navigation service error message to use multilingual text
- update component templates to use dynamic language translation instead of hardcoded text
- adjust code indentation and formatting for consistency

common/js/uniapp.utils.js

@@ -2,6 +2,8 @@
  * 将常用的Uniapp提供的函数，存放到这里，按需引用
  */
 
+import lang from './lang.js';
+
 
 /**
  * 显示错误信息
@@ -18,7 +20,7 @@ const showError = (err, useModal = false) => {
         });
     } else {
         uni.showModal({
-            title: '错误提示',
+            title: lang.lang('uniappUtils.errorTip'),
             content,
             showCancel: false,
         })
@@ -51,7 +53,7 @@ export const copyTextAsync = (text, { copySuccess = '', copyFailed = '' } = {})
     return new Promise((resolve, reject) => {
         // 输入验证
         if (!text && text !== '') {
-            const error = new Error('复制文本不能为空');
+            const error = new Error(lang.lang('uniappUtils.copyTextEmpty'));
             showError(error);
             reject(error);
             return;
@@ -59,13 +61,13 @@ export const copyTextAsync = (text, { copySuccess = '', copyFailed = '' } = {})
 
         // 超时监测
         const timeoutId = setTimeout(() => {
-            let error = new Error('复制操作长时间无响应，请检查相关权限及配置是否正确');
+            let error = new Error(lang.lang('uniappUtils.copyTimeout'));
             // #ifdef MP-WEIXIN
             error = new Error([
-                '复制操作长时间无响应!',
-                '原因：',
-                '1.微信平台->用户隐私保护指引->"剪贴板"功能未添加或审核未通过；',
-                '2.微信平台对剪贴板API调用频率有限制'
+                lang.lang('uniappUtils.copyTimeoutTitle'),
+                lang.lang('uniappUtils.copyTimeoutReason'),
+                lang.lang('uniappUtils.wechatClipboardReason1'),
+                lang.lang('uniappUtils.wechatClipboardReason2')
             ].join('\r\n'));
             // #endif
             showError(error, true);
@@ -96,7 +98,7 @@ export const copyTextAsync = (text, { copySuccess = '', copyFailed = '' } = {})
                     clearTimeout(timeoutId);
                     try {
                         uni.showToast({
-                            title: err.message || err.errMsg || copyFailed || '复制失败',
+                            title: err.message || err.errMsg || copyFailed || lang.lang('uniappUtils.copyFailed'),
                             icon: 'none',
                             duration: 2000
                         });