fix(common/http): 修复Authorization头设置时的空指针问题

http/http.go

@@ -100,8 +100,8 @@ func doRequestRaw(ctx context.Context, method string, url string, headers map[st
 	// 最后设置headers，确保不会被ContentJson覆盖
 	if len(headers) > 0 {
 		client.SetHeaderMap(headers)
-	} else {
-		client.SetHeader("Authorization", g.RequestFromCtx(ctx).GetHeader("Authorization"))
+	} else if r := g.RequestFromCtx(ctx); r != nil {
+		client.SetHeader("Authorization", r.GetHeader("Authorization"))
 	}
 
 	// 修复：避免data...展开导致的双重包装问题