The worker's push listener shows the payload's title, body and tag with
the app icon and badge, carrying the same-origin url as its data; a
payload that is not a MealQuest notice (no payload, not JSON, no title,
wrong field types, an off-origin url) shows a generic MealQuest
notification and logs why, never throwing. notificationclick focuses
an open MealQuest window and navigates it to the url, or opens a new
window there. Both listeners delegate to pure functions in
web/src/push/notification.ts.
web/src/push/subscribe.ts adds subscribePush, which checks support,
asks for permission only during a tap (and before any await), subscribes
with the server's VAPID key, replacing a subscription made with an
older key, and POSTs exactly {endpoint, keys, user_agent?}; and
unsubscribePush, which DELETEs on the server and then unsubscribes the
browser, answering not-subscribed when there is nothing to remove.
usePush binds both to the app's API client.
Maestro task fb6dd817-2224-4800-9b7d-8499e856e171 (Feature 19).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
