fix(M3): 词典直接使用 fetch 替代 messaging，修复 'Receiving end does not exist' 错误

src/background/index.js

@@ -48,34 +48,4 @@ backgroundHandler.register('DICT.GET_LIST', async () => {
   return { dictionaries };
 });
 
-// 注册 HTTP 请求处理器
-backgroundHandler.register('HTTP.GET', async (payload) => {
-  const { url, options = {} } = payload;
-  
-  console.log('[Background] HTTP.GET:', url);
-  
-  try {
-    const response = await fetch(url, {
-      method: 'GET',
-      headers: {
-        'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
-        'Accept-Language': 'zh-CN,zh;q=0.9,en;q=0.8',
-        'User-Agent': 'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.0',
-        ...options.headers
-      },
-      ...options
-    });
-    
-    if (!response.ok) {
-      throw new Error(`HTTP error! status: ${response.status}`);
-    }
-    
-    const text = await response.text();
-    return { text, status: response.status };
-  } catch (error) {
-    console.error('[Background] HTTP.GET failed:', error);
-    throw new Error(`请求失败: ${error.message}`);
-  }
-});
-
 console.log('[SaladDict] Message handlers registered');

src/shared/dictionary/bing.js

@@ -4,7 +4,6 @@
  */
 
 import { DictionaryBase, createResult, createMeaning, createExample } from './base.js';
-import { messaging } from '../messaging.js';
 
 /**
  * 必应词典实现
@@ -33,15 +32,23 @@ export class BingDictionary extends DictionaryBase {
     const url = `https://cn.bing.com/dict/search?q=${encodeURIComponent(trimmedWord)}`;
 
     try {
-      // 通过 Background 发起 HTTP 请求
+      // 在 Background 中直接使用 fetch
-      const response = await messaging.sendToBackground('HTTP.GET', { url }, 10000);
+      const response = await fetch(url, {
+        method: 'GET',
+        headers: {
+          'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
+          'Accept-Language': 'zh-CN,zh;q=0.9,en;q=0.8'
+        }
+      });
       
-      if (!response?.text) {
+      if (!response.ok) {
-        throw new Error('获取词典数据失败');
+        throw new Error(`HTTP error! status: ${response.status}`);
       }
 
+      const html = await response.text();
+      
       // 解析 HTML 提取数据
-      return this._parseHtml(response.text, trimmedWord, url);
+      return this._parseHtml(html, trimmedWord, url);
     } catch (error) {
       console.error('[BingDictionary] Search failed:', error);
       

src/shared/dictionary/youdao.js

@@ -4,7 +4,6 @@
  */
 
 import { DictionaryBase, createResult, createMeaning, createExample } from './base.js';
-import { messaging } from '../messaging.js';
 
 /**
  * 有道词典实现
@@ -33,15 +32,23 @@ export class YoudaoDictionary extends DictionaryBase {
     const url = `https://dict.youdao.com/result?word=${encodeURIComponent(trimmedWord)}&lang=en`;
 
     try {
-      // 通过 Background 发起 HTTP 请求
+      // 在 Background 中直接使用 fetch
-      const response = await messaging.sendToBackground('HTTP.GET', { url }, 10000);
+      const response = await fetch(url, {
+        method: 'GET',
+        headers: {
+          'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
+          'Accept-Language': 'zh-CN,zh;q=0.9,en;q=0.8'
+        }
+      });
       
-      if (!response?.text) {
+      if (!response.ok) {
-        throw new Error('获取词典数据失败');
+        throw new Error(`HTTP error! status: ${response.status}`);
       }
 
+      const html = await response.text();
+      
       // 解析 HTML 提取数据
-      return this._parseHtml(response.text, trimmedWord, url);
+      return this._parseHtml(html, trimmedWord, url);
     } catch (error) {
       console.error('[YoudaoDictionary] Search failed:', error);