* mobile: wire notification registration and listener
* implement backend components for push notifications
* refactor: agentic comment cleanup
* docs: use proper module name for particle processor
* set required env variables for push notifications
* bump version
* fix: always upsert push token on mobile start
* Revert "fix: always upsert push token on mobile start"
This reverts commit 90ff18a788.
* send push notifications regardless of online status
* setup infra for pusher service
* setup client sdk for pusher service
* fix: ping parse failure
* fix: send pong back to client
avoid disconnections every 2.5 minutes
* increase replicas
* feat: show presence and compose indicator
