Feat: batch download in streamming paradism

Fix: add cache-controler header in API call responses

middleware/common.go

@@ -38,3 +38,10 @@ func IsFunctionEnabled(key string) gin.HandlerFunc {
 		c.Next()
 	}
 }
+
+// CacheControl 屏蔽客户端缓存
+func CacheControl() gin.HandlerFunc {
+	return func(c *gin.Context) {
+		c.Header("Cache-Control", "private, no-cache")
+	}
+}