Pages/deployment strategy (deferred after CI/security baseline)

[Prekzursil]

Deployment and Pages are intentionally deferred for this phase.\n\nScope:\n- Evaluate Pages vs release artifacts vs external hosting once M0 CI/security baseline is stable.\n- Define publishing model, environment hardening, and release governance.\n\nAcceptance:\n- Decision record for deployment target and release channel.\n- Security controls documented for chosen path.\n- Rollout checklist linked from M4.