* feat: add BigModel provider with native Chat, Responses, and Messages APIs
Co-authored-by: Bytechoreographer <Bytechoreographer@users.noreply.github.com>
* test(providers): make BigModel unit tests a package
Co-authored-by: Bytechoreographer <Bytechoreographer@users.noreply.github.com>
* docs(providers): clarify BigModel parameter interface
Co-authored-by: Bytechoreographer <Bytechoreographer@users.noreply.github.com>
* fix(bigmodel): keep the Coding Plan base, surface Responses auth errors, and scope routes
Chat Completions keeps a GLM Coding Plan api_base. Responses raises the status from
BigModel's success=false body instead of returning an empty 200, and a JSON body
answering a stream request is replayed as a one-shot stream. Messages streams keep
ping and [DONE] lines. bigmodel leaves openai_compatible_providers so speech, image,
and transcription routes send it no request
* fix(responses): replay a JSON body on a stream request only when it has a Content-Length
A gateway that labels a chunked SSE stream as application/json kept streaming before
the replay, so only a sized body is read in full
* fix(bigmodel): scope the JSON stream replay to BigModel, map its business error codes, and echo requested tools
* fix(bigmodel): forward Codex's include and parallel_tool_calls, keep the OpenAI org header off BigModel, and pass unchanged Messages stream events through
* fix(bigmodel): map disabled thinking to low effort, keep Messages temperature, raise context window and content policy errors, and default parallel_tool_calls to true
* fix(bigmodel): keep the caller's reasoning_effort when Messages rewrites disabled thinking
* fix(bigmodel): keep context-window and content-policy errors on streamed Responses replays
---------
Co-authored-by: Bytechoreographer <Bytechoreographer@users.noreply.github.com>
Co-authored-by: mateo-berri <277851410+mateo-berri@users.noreply.github.com>
