- deploy.sh: wait for postgres healthcheck before app healthcheck
- deploy.sh: add one-time JSON→PostgreSQL migration prompt (step 13)
with migration marker file to avoid re-prompting on future deploys
- deploy.sh: update summary to show both app and DB container names
- deploy.sh: check POSTGRES_PASSWORD in required keys
- .env.example: add POSTGRES_PASSWORD, ADMIN_EMAILS, emergency access vars
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>