Move push notification to client instead of db trigger

supabase/migrations/20260228153000_drop_notifications_trigger.sql

@@ -0,0 +1,16 @@
+-- Migration: Drop notifications trigger that posts to the send_fcm edge function
+-- Reason: moving push invocation to client-side; remove server trigger to avoid duplicate sends
+BEGIN;
+
+-- Remove the trigger that calls the edge function on insert into public.notifications
+DROP TRIGGER IF EXISTS notifications_send_fcm_trigger ON public.notifications;
+
+-- Remove the trigger function as well (if present)
+DROP FUNCTION IF EXISTS notifications_send_fcm_trigger() CASCADE;
+
+COMMIT;
+
+-- NOTE: After deploying this migration, the application will rely on the
+-- client-side push path. Ensure client builds are released and rollout is
+-- coordinated before applying this migration in production to avoid missing
+-- pushes for any clients that still expect server-side delivery.