feat: 插件开发 ozon 端主体完成

extension/entrypoints/background.ts

@@ -29,6 +29,22 @@ export default defineBackground(() => {
       return true;
     }
 
+    // 通用文本代理：采集引擎拉跨域资源（1688 详情 CDN / mtop API）
+    if (msg?.action === 'fetchText') {
+      const headers: Record<string, string> = {};
+      if (msg.referer) headers['Referer'] = msg.referer;
+      fetch(msg.url, {
+        headers,
+        credentials: msg.credentials ? 'include' : 'omit',
+      })
+        .then(async (res) => {
+          if (!res.ok) throw new Error(`HTTP ${res.status}`);
+          sendResponse({ ok: true, text: await res.text() });
+        })
+        .catch((err) => sendResponse({ ok: false, error: err instanceof Error ? err.message : String(err) }));
+      return true;
+    }
+
     return false;
   });
 });