feat: create email template for TTO reservation confirmation

feat: implement order notifications service with TTO reservation confirmation handling

feat: create migration for TTO booking email webhook trigger

supabase/migrations/20250929144800_tto_booking_email_hook.sql

@@ -0,0 +1,11 @@
+create trigger tto_order_confirmation_email
+after update on medreport.connected_online_reservation
+for each row
+when (old.status is distinct from new.status and new.status = 'CONFIRMED')
+execute function supabase_functions.http_request(
+  'http://host.docker.internal:3000/api/db/webhook',
+  'POST',
+  '{"Content-Type":"application/json", "X-Supabase-Event-Signature":"WEBHOOKSECRET"}',
+  '{}',
+  '1000'
+);