2026-07-10 Event: Service Meter Reading Added
- New optional
file_idfield added to eachmeter_readingsitem, carrying the entity ID of the photo submitted with that reading; it matches anevent_attachments[].entity_id, so consumers can pair a reading with its attachment deterministically instead of relying on therelation_tags/_tags/mime_type/_created_atheuristics (which remain the fallback whenfile_idis absent)