Update deploy scripts for Azure Managed Redis defaults

Summary

Update the deployment scripts to provision Azure Managed Redis by default and define the standard configuration for new SimpleChat installations.

Scope

• Evaluate and document the default Azure Managed Redis configuration we should provision.
• Decide the default data tier, cache size, performance tier, and any advanced configuration required for production-ready deployments.
• Evaluate active geo-replication support and determine whether it should be enabled by default, optional, or gated by deployment profile/region support.
• Update the deploy scripts and related deployment configuration to use Azure Managed Redis instead of assuming Azure Cache for Redis.
• Preserve a support path for existing Azure Cache for Redis deployments during the transition period.

Acceptance Criteria

• Deployment defaults for Azure Managed Redis are documented and reviewed, including data tier, cache size, performance, geo-replication, and advanced settings.
• Deploy scripts provision/configure Azure Managed Redis with the selected defaults.
• Configuration remains explicit about compatibility or migration behavior for existing Azure Cache for Redis users.
• Deployment documentation and validation steps are updated.

Notes

Priority: P1
Assignee: Unassigned
Related follow-up: ensure the application Redis implementation and admin portal support both Azure Managed Redis and Azure Cache for Redis during the transition.

Start with the deployment scripts and related deployment configuration, then review the deployment documentation and validation steps. Define and document the Azure Managed Redis defaults, including tier, size, performance, geo-replication, and advanced settings, while checking the application Redis implementation and admin portal requirements. Done means the scripts use the selected defaults and preserve an explicit compatibility path for existing Azure Cache for Redis deployments.