CREATE TABLE IF NOT EXISTS voice_name_collection_settings (
    id INTEGER PRIMARY KEY AUTOINCREMENT,
    settings_key TEXT NOT NULL UNIQUE,
    config_json TEXT NOT NULL DEFAULT '{}',
    updated_at TEXT NOT NULL
);

CREATE INDEX IF NOT EXISTS idx_voice_name_collection_settings_key
ON voice_name_collection_settings(settings_key);

CREATE INDEX IF NOT EXISTS idx_voice_name_collection_settings_updated_at
ON voice_name_collection_settings(updated_at);