🐛 删除 fetchScriptBody 的 Accept，避免触发 Error 406 (#1306)

* 修正 fetchScriptBody 的 Accept 设定，避免触发 Error 406

* 🐛 移除 Accept 头和 content-type 验证，避免触发 Error 406

---------

Co-authored-by: 王一之 <yz@ggnb.top>

Author: cyfung1031

.gitignore

@@ -39,3 +39,5 @@ CLAUDE.md
 
 test-results
 playwright-report
+
+superpowers

src/pages/install/App.tsx

@@ -67,7 +67,6 @@ const fetchScriptBody = async (url: string, { onProgress }: { [key: string]: any
   const response = await fetch(url, {
     headers: {
       "Cache-Control": "no-cache",
-      Accept: "text/javascript,application/javascript,text/plain,application/octet-stream,application/force-download",
       // 参考：加权 Accept-Encoding 值说明
       // https://developer.mozilla.org/en-US/docs/Web/HTTP/Reference/Headers/Accept-Encoding#weighted_accept-encoding_values
       "Accept-Encoding": "br;q=1.0, gzip;q=0.8, *;q=0.1",
@@ -83,10 +82,6 @@ const fetchScriptBody = async (url: string, { onProgress }: { [key: string]: any
   if (!response.body || !response.headers) {
     throw new Error("No response body or headers");
   }
-  if (response.headers.get("content-type")?.includes("text/html")) {
-    throw new Error("Response is text/html, not a valid UserScript");
-  }
-
   const reader = response.body.getReader();
 
   // 读取数据