voxora-engine

Canonical adapter contract for voxora engine crates (ASR-specific).

Every voxora-<engine> crate (voxora-whisper, voxora-qwen3asr, future voxora-parakeet, voxora-voxtral, …) builds on top of this crate so consumers see a uniform shape: an [EngineAdapter] trait that exposes family, info, backend, and the wrapped [voxora_traits::AsrEngine].

The adapter wraps voxora_traits::AsrEngine — there is no generic Model trait at this layer. The next planned engine family (parakeet, voxtral, …) lands as a new variant on [EngineFamily] in 0.2.0; today the enum covers Whisper and Qwen3Asr and is #[non_exhaustive].

Re-exports: [AnyEngine], [BackendDescriptor], [BackendKind], [EngineFamily], [EngineInfo], [InvalidEngineFamily], and the testing::MockAdapter helper for downstream test suites.