fix: apply MergeSystemMessages transformer to all OpenAI-compatible providers#3203

andreaswachs wants to merge 3 commits into

tailcallhq:maintailcallhq/forgecode:mainfrom

andreaswachs:fix/merge-system-messages-openai-providersandreaswachs/forgecode:fix/merge-system-messages-openai-providersCopy head branch name to clipboard