This is a placeholder body generated by the flow_automation runner stub. Replace generate() with the brightsites-ai Worker call. Facts: {"location_name":"Williton","postcode":"TA4 4PX","observed_at":"2026-07-08","day_name":"Wednesday","temperature_c":26,"feels_like_c":25.7,"condition":"Sunny day","wind_mph":9.2,"precipitation_probability":5,"warnings":[]}