Geocode up to 1000 US addresses in a single call

Geocode up to 1000 US addresses in a single call. Flat $0.001 per batch — much cheaper per address at scale than the single-address endpoint. JSON body: an array of { id, street, city?, state?, zip? } objects, or { addresses: [...] }. Response is an object map keyed by the user-provided 'id' so results can be joined back to inputs.