Flight Discovery Decoder

This tool decodes a Base64-encoded JSON payload of flight offers, parses it into structured data, and optionally filters offers by departure date, origin, and destination. It accepts _init as the required Base64 string containing the JSON offers payload, plus optional date (YYYY-MM-DD), origin (3-letter IATA), and destination (3-letter IATA) filters. The worker must use these inputs and the decoded payload as the only source of truth and produce a standardized flight discovery result whose JSON structure and values strictly validate against the system-provided structured output schema.