- Migrations now run in Application.start/2 before starting services
- Ecto's advisory locks prevent concurrent migrations in clustered setup
- Simplified deployment - no separate migration job needed
- Removed migrate-job.yaml manifest
- Create Kubernetes Job to run migrations before deployment
- Update GitLab CI to execute migration job and wait for completion
- Ensures migrations run once per deployment in clustered environment
- Migration job uses PostgreSQL advisory locks to prevent race conditions
