Добавлен OTLP-провайдер, реализовано отбрасывание метрик и трейсов в observability + добавлен перезапуск nginx при пересборке контейнеров (ошибка, когда докер меняет адреса сервисов)

codebase/backend/deployment/RUNBOOK.md

@@ -148,9 +148,19 @@ docker compose up -d delivery-worker safety-recovery-worker cleanup-worker \
   notification-expire-worker notification-draft-cleanup-worker
 docker compose up -d bitrix-local-app bitrix-sync
 docker compose up -d nginx
+docker compose up -d --wait api-backend keycloak sms-service bitrix-local-app
+docker compose exec -T nginx nginx -t -c /tmp/nginx.conf
+docker compose kill -s HUP nginx
 docker compose ps
 ```
 
+Nginx resolves Docker upstream names when its configuration is loaded. After
+recreating `api-backend`, `keycloak`, `sms-service`, or `bitrix-local-app`,
+wait for readiness, validate the active `/tmp/nginx.conf`, and signal the
+master process with `HUP` as shown above. Do not use bare `nginx -t` or
+`nginx -s reload`: they target the default config/PID under read-only
+`/var/run`, not the running Nginx instance.
+
 - [ ] No restart loop/OOM; critical readiness is green.
 - [ ] `notification-expire-worker` runs daily closure with an advisory lock; `notification-draft-cleanup-worker` removes expired drafts/S3 objects. Both entrypoints exist in the installed image.
 - [ ] Only documented Bitrix not-installed/sync-stub degradation remains.