mkt-finhub-adapter-v1

Wraps the Wild Tier Finnhub integration to return normalized price, volume, and metadata for equities and crypto assets. Accepts two inputs: query, a required string ticker or exchange-qualified crypto pair such as AAPL or BINANCE:BTCUSDT; and assetType, a required string enum with values crypto or equity that selects the Finnhub domain mapping. The worker must transform the upstream Finnhub data into the Imperial Standard structure and output JSON that strictly validates against the embedded schema.