- Return InvalidRequest (400) for unsupported speed too, matching the
reasoning_effort check and the complete()/stream() doc comments
- Centralize fabro_llm::Error -> ApiError mapping in a From impl so the
completions handler, playground handler, and Error::Llm arm agree on
the InvalidRequest -> 400 / else -> 502 split
- Reject unparseable reasoning_effort values with 400 instead of
silently dropping them
- Add classify_sdk_invalid_request test per fabro-workflow convention
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The crate reorganization renamed lib/crates/ to lib/apps|components|foundation/.
Git followed all modified files across the rename; the only conflict was the
newly added codec/cache.rs, now placed at lib/components/fabro-llm/src/codec/cache.rs.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>