Remove priority field from FeedItem and engine-level sorting.
Add FeedItemSignals with urgency and timeRelevance fields.
Update all source packages to emit signals instead of priority.
Ranking is now the post-processing layer's responsibility.
Urgency values are unchanged from the old priority values.
Co-authored-by: Ona <no-reply@ona.com>
Add listActions() and executeAction() to FeedSource for write
operations back to external services. Actions use arktype schemas
for input validation via StandardSchemaV1.
- ActionDefinition type with optional input schema
- FeedEngine routes actions with existence and ID validation
- Source IDs use reverse-domain format (aris.location, aris.tfl)
- LocationSource: update-location action with schema validation
- TflSource: set-lines-of-interest action with lineId validation
- No-op implementations for sources without actions
Co-authored-by: Ona <no-reply@ona.com>
Sources that cannot provide context now return null
instead of omitting the method. The engine checks the
return value rather than method existence.
Co-authored-by: Ona <no-reply@ona.com>
Implements FeedSource for WeatherKit API. Depends on location source,
provides weather context for downstream sources, and produces weather
feed items.
Co-authored-by: Ona <no-reply@ona.com>
