Update model options

Refactor OpenAI Polisher Bob Plugin to improve performance and mainta…

…inability

Support for custom models, drop of support for `v1/completions`

优化 HTTP Error 429 的错误信息

Supports the latest GPT-4 and 3.5 Turbo models

Supports the latest GPT-4 and 3.5 Turbo models

Fix invalid custom system prompt

Handle fragmented stream data from OpenAI API

Supports streaming output, requires Bob version >= 1.8.0

fix(ci): add permissions