Retrieve extracted file readings produced by the asynchronous document processing pipeline
water, electricity, gas, fuel_delivery, recharges, or wastes.1.id: file UUIDname: file nametags: classifier tags such as invoice::watercategory: derived category stringreading.status: processing status, usually success or errorreading.content.items: extracted OCR or LLM outputlinked: true once invoices or wastes have been created from the filelinked=true means downstream invoices or wastes already exist for the file.file_id is provided, the response is effectively a direct fetch for those file readings.