fix(OpenAIClient): use official SDK to identify client and avoid false Rate Limit Error (#1161)

* chore: add eslint ignore unused var pattern

* feat: add extractBaseURL helper for valid OpenAI reverse proxies, with tests

* feat(OpenAIClient): add new chatCompletion using official OpenAI node SDK

* fix(ci): revert change to FORCE_PROMPT condition

api/app/clients/tools/util/index.js

@@ -1,6 +1,8 @@
 const { validateTools, loadTools } = require('./handleTools');
+const handleOpenAIErrors = require('./handleOpenAIErrors');
 
 module.exports = {
+  handleOpenAIErrors,
   validateTools,
   loadTools,
 };