* refactor(host-python): collect host failures in a thiserror Error enum
missing_state() and the inline PyRuntimeError/PyTypeError messages become Error variants with one From<Error> for PyErr, and InvokeError derives thiserror so From<PyErr> comes from #[from]
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
* docs(host-python): note the canonical HostError import alias in AGENTS.md
Co-Authored-By: Yujong Lee <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>
Move the generic async coroutine out of the host crate into litellm-coroutine,
with its requirements documented in the crate's AGENTS.md. RouteMachine becomes
CallMachine on top of it, host protocol ops move to host/src/protocol.rs, and
the messages, OCR, host-python, python-bridge and legacy callbacks crates adopt
the new types. Adds error definition rules to litellm-rust/AGENTS.md.
Co-authored-by: Yujong Lee <yujong@berri.ai>
