-- Migration 14: Podcast profiles model registry integration
-- Adds record<model> references to replace loose provider/model strings
-- Adds language field to episode_profile
-- Adds per-speaker TTS override support

-- EPISODE PROFILE
-- Legacy fields: make optional (app ignores, preserved for data migration)
DEFINE FIELD OVERWRITE outline_provider ON TABLE episode_profile TYPE option<string>;
DEFINE FIELD OVERWRITE outline_model ON TABLE episode_profile TYPE option<string>;
DEFINE FIELD OVERWRITE transcript_provider ON TABLE episode_profile TYPE option<string>;
DEFINE FIELD OVERWRITE transcript_model ON TABLE episode_profile TYPE option<string>;

-- New fields: reference to Model registry
DEFINE FIELD IF NOT EXISTS outline_llm ON TABLE episode_profile TYPE option<record<model>>;
DEFINE FIELD IF NOT EXISTS transcript_llm ON TABLE episode_profile TYPE option<record<model>>;
DEFINE FIELD IF NOT EXISTS language ON TABLE episode_profile TYPE option<string>;

-- SPEAKER PROFILE
-- Legacy fields: make optional
DEFINE FIELD OVERWRITE tts_provider ON TABLE speaker_profile TYPE option<string>;
DEFINE FIELD OVERWRITE tts_model ON TABLE speaker_profile TYPE option<string>;

-- New field: reference to Model registry (profile-level)
DEFINE FIELD IF NOT EXISTS voice_model ON TABLE speaker_profile TYPE option<record<model>>;

-- Per-speaker TTS override
DEFINE FIELD IF NOT EXISTS speakers.*.voice_model ON TABLE speaker_profile TYPE option<record<model>>;