* refactor(rust-bridge): let each route host pick the body params
The native routes projected request body params from a name list, hard-coded in
Rust for Messages and read from `PARAMETERS` for Chat Completions and Responses.
Each route host now answers `body_params(request)` over the keywords the call would
send, so the Python side owns which params reach the provider. No behavior change
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* fix(rust-host): use read-only body parameter types
Co-Authored-By: yujonglee.dev@gmail.com <yujong@berri.ai>
---------
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
* refactor(rust-bridge): move the route host modules under host/routes
Each native route's Python half lived in its own `<route>/route_host.py`, apart
from the shared host modules Rust also imports by name. They now sit together in
`litellm/rust_bridge/host/routes/<route>.py`, with their unit tests moved to the
mirrored path. No behavior change
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* test(rust-host): reference messages route alias
Co-Authored-By: yujonglee.dev@gmail.com <yujong@berri.ai>
---------
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
