d88bede097
Alerting + outbound controllers resolve acting user via authentication.name with 'user:' prefix stripped → 'admin'. But UserRepository.upsert stores env-admin as 'user:admin' (JWT sub format). The resulting FK mismatch manifests as 500 'alert_rules_created_by_fkey' on any create operation in a fresh docker stack. Workaround: run-once 'cameleer-seed' compose service runs psql against deploy/docker/postgres-init.sql after the server is healthy (i.e. after Flyway migrations have created tenant_default.users), inserting user_id='admin' idempotently. The root-cause fix belongs in the backend (either stop stripping the prefix in alerting/outbound controllers, or normalise storage to the unprefixed form) and is out of scope for Plan 03.