Part 1 backend landed (website#78 merged); flip its status to landed and
expand the M7 plan block into a detailed Part 2 (app) plan, grounded in the
merged /auth/me/devices + notifications contract.
Transport decision (per user): the app EMBEDS its own UnifiedPush
distributor — ntfy is only the relay server, no second app installed, no
Google Play Services. A foreground-service persistent ntfy connection
(reusing the ShardStreamClient pattern) subscribes to the app's own topic;
the registered endpoint is that topic URL. A PushTransport seam keeps the
future FCM Play flavor cheap.
Also records the ten Part-2 work items, resolves the §13 notification-tap
deep-link open item, and drops the now-decided distributor-strategy question.
Co-Authored-By: Claude <noreply@anthropic.com>
