chore(web): drop unused somark purchaseUrl locale strings (#18204)

web/src/locales/en.ts

@@ -2158,8 +2158,7 @@ Example: Virtual Hosted Style`,
       baseUrlNameMessage: 'Please input your Base URL',
       mwsApiUrl: 'API URL',
       mwsApiUrlMessage: 'Please enter the MWS project API URL',
-      mwsApiUrlPlaceholder:
-        'https://gpt.mwsapis.ru/projects/<project>',
+      mwsApiUrlPlaceholder: 'https://gpt.mwsapis.ru/projects/<project>',
       mwsToken: 'Token',
       mwsTokenMessage: 'Please enter the MWS Token',
       mwsTokenPlaceholder: 'MWS service account API key',
@@ -2347,8 +2346,6 @@ Example: Virtual Hosted Style`,
         enableTextCrossPage: 'Enable Text Cross Page',
         enableTableCrossPage: 'Enable Table Cross Page',
         keepHeaderFooter: 'Keep Header Footer',
-        purchaseUrl:
-          'Purchase API: mainland China — https://somark.cn/workbench/purchase; overseas (including Taiwan, China; Hong Kong, China; Macau, China) — https://somark.ai/studio/purchase',
       },
       modelTypes: {
         chat: 'Chat',

web/src/locales/ja.ts

@@ -1862,8 +1862,6 @@ export default {
         enableTextCrossPage: 'ページをまたぐテキストの結合を有効化',
         enableTableCrossPage: 'ページをまたぐテーブルの結合を有効化',
         keepHeaderFooter: 'ヘッダー・フッターを保持',
-        purchaseUrl:
-          'API購入: 中国本土 — https://somark.cn/workbench/purchase / 海外(台湾、香港、マカオを含む) — https://somark.ai/studio/purchase',
       },
 
       modelTypes: {

web/src/locales/zh.ts

@@ -1978,8 +1978,6 @@ NER：使用 spaCy NER 和基于规则的关键词提取来抽取 Entities 和 R
         enableTextCrossPage: '文字跨页合并',
         enableTableCrossPage: '表格跨页合并',
         keepHeaderFooter: '保留页眉页脚',
-        purchaseUrl:
-          '购买 API：中国大陆 https://somark.cn/workbench/purchase；海外（含中国台湾、中国香港、中国澳门）https://somark.ai/studio/purchase',
       },
       paddleocr: {
         apiUrl: 'PaddleOCR API URL',