[DEPLOY-02] Deploy the production demo and run smoke tests

[Krisor1986]

Goal

Deliver the final academic version of ClientFlow.

Tasks

• Promote the approved staging version
• Run production migrations
• Configure production environment variables
• Verify login and core workflows
• Create a demo account
• Document rollback steps
• Record final known limitations

Acceptance criteria

• The production demo is accessible
• Critical smoke tests pass
• The team has demo credentials and a rollback procedure

Dependencies

• [DEPLOY-01]
• [SEC-01]