v2.15.0

What's Changed

• refactor(inference): slice monolith mod.rs into feature modules by @ekhodzitsky in #222
• refactor(cli): extract EngineRecipe boot module from main by @ekhodzitsky in #223
• refactor(audio): split audio.rs into format modules by @ekhodzitsky in #224
• refactor(server): split http.rs into feature modules by @ekhodzitsky in #220
• refactor(inference): isolate polyvoice diarization surface by @ekhodzitsky in #225
• refactor(server): share file transcription core across REST and jobs by @ekhodzitsky in #226
• refactor(core): collapse Engine file transcription into TranscribeRequest by @ekhodzitsky in #221
• docs(benchmark): publish held-out public RU WER matrix by @ekhodzitsky in #227

Full Changelog: v2.14.4...v2.15.0