4.6.8-production (#822)

* Json completion (#16)

* json-completion

* fix duplicate

* fix

* fix: config json

* feat: query extension

* perf: i18n

* 468 doc

* json editor

* perf: doc

* perf: default extension model

* docker file

* doc

* perf: token count

* perf: search extension

* format

* perf: some constants data

---------

Co-authored-by: heheer <71265218+newfish-cmyk@users.noreply.github.com>

packages/service/core/chat/utils.ts

@@ -46,7 +46,9 @@ export function ChatContextFilter({
 
     /* 整体 tokens 超出范围, system必须保留 */
     if (maxTokens <= 0) {
-      chats.shift();
+      if (chats.length > 1) {
+        chats.shift();
+      }
       break;
     }
   }