Feat: system tool support stream response (#5206)

* Match SSE for FastGPT (#5168)

* Match SSE for FastGPT

* Modify the judgment

* Optimize logic for SSE transmission

* Refactor imports

* directly use workflowStreamResponse from props

* improve error handling and streamline onStreamData logic

* Refactor API client configuration

* perf: system tool support sse

* update doc

---------

Co-authored-by: Zhuangzai fa <143257420+ctrlz526@users.noreply.github.com>

packages/service/core/app/tool/api.ts

@@ -1,9 +1,12 @@
-import createClient, { type SystemVarType } from '@fastgpt-sdk/plugin';
+import createClient, { RunToolWithStream } from '@fastgpt-sdk/plugin';
 import { PluginSourceEnum } from '@fastgpt/global/core/app/plugin/constants';
 
+const BASE_URL = process.env.PLUGIN_BASE_URL || '';
+const TOKEN = process.env.PLUGIN_TOKEN || '';
+
 const client = createClient({
-  baseUrl: process.env.PLUGIN_BASE_URL || '',
-  token: process.env.PLUGIN_TOKEN || ''
+  baseUrl: BASE_URL,
+  token: TOKEN
 });
 
 export async function getSystemToolList() {
@@ -26,26 +29,8 @@ export async function getSystemToolList() {
   return Promise.reject(res.body);
 }
 
-export async function runTool({
-  toolId,
-  inputs,
-  systemVar
-}: {
-  toolId: string;
-  inputs: Record<string, any>;
-  systemVar: SystemVarType;
-}) {
-  const res = await client.tool.run({
-    body: {
-      toolId,
-      inputs,
-      systemVar
-    }
-  });
-
-  if (res.status === 200 && res.body.output) {
-    return res.body.output;
-  } else {
-    return Promise.reject(res.body);
-  }
-}
+const runToolInstance = new RunToolWithStream({
+  baseUrl: BASE_URL,
+  token: TOKEN
+});
+export const runSystemTool = runToolInstance.run.bind(runToolInstance);