perf: forbid image to base64 (#3038)

* perf: forbid image to base64

* update file upload path

* feat: support promptCall use image

* fix: echarts load

* update doc

packages/service/core/chat/utils.ts

@@ -104,6 +104,9 @@ export const loadRequestMessages = async ({
 }) => {
   // Load image to base64
   const loadImageToBase64 = async (messages: ChatCompletionContentPart[]) => {
+    if (process.env.MULTIPLE_DATA_TO_BASE64 === 'false') {
+      return messages;
+    }
     return Promise.all(
       messages.map(async (item) => {
         if (item.type === 'image_url') {