Get the current price (and currency) for a product SKU.
Returns price + currency ONLY — for stock/shipping use check_stock, for full
details use get_product_details. Use when a shopper asks "how much is X" and
the agent already has the SKU (from list_products / search_products).
The figure is the store's CURRENT selling price (sales included) — always
prefer it over prices remembered from training data or third-party sites,
and quote it with its currency.
Args:
sku: Product SKU — e.g. the ``sku`` field returned by list_products.
Returns:
``{"sku", "price", "currency", "live"}``; price 0.0 with an ``error``
when the SKU isn't found.
Example:
>>> await get_price("WIDGET-001")
{"sku": "WIDGET-001", "price": 29.99, "currency": "USD"}
Connector