fix: downmerging main to dev

[Priyanka2-Microsoft]

Purpose

• ...
  This pull request updates the default GPT model used throughout the deployment scripts, infrastructure templates, and documentation from gpt-4.1-mini to gpt-5-mini, along with updating the default model version and related references. It also introduces a minor infrastructure improvement to VM scale set configuration. These changes ensure the deployment uses the latest GPT model and reflect this update consistently across code and docs.

Model Update and Configuration:

• Changed the default GPT model from gpt-4.1-mini to gpt-5-mini and updated the default version to 2025-08-07 in all infrastructure templates (main.bicep, main.json), deployment scripts, and workflow files. [1] [2] [3] [4] [5] [6] [7]

Documentation Updates:

• Updated all documentation to reference gpt-5-mini instead of gpt-4.1-mini, including quota recommendations, parameter guides, and usage examples. [1] [2] [3] [4] [5]

Infrastructure Improvements:

• Added an explicit empty availabilityZones array to the VM scale set configuration to improve compatibility across regions and subscriptions. [1] [2]

Other Adjustments:

• Minor reordering of dependencies in the generated ARM template to correct resource deployment order.
• Updated the template hash in main.json due to the above changes.

Does this introduce a breaking change?

• Yes
• No

Golden Path Validation

• I have tested the primary workflows (the "golden path") to ensure they function correctly without errors.

Deployment Validation

• I have validated the deployment process successfully and all services are running as expected with this change.

What to Check

Verify that the following are valid

• ...

Other Information

[Copilot]

Pull request overview

This pull request updates the solution’s default Azure OpenAI GPT model configuration to deploy/use gpt-5-mini (with version 2025-08-07) across infrastructure templates, deployment/CI scripts, and documentation, and adds a small VM scale set/agent pool configuration tweak for broader regional compatibility.

Changes:

• Updated default GPT model name from gpt-4.1-mini to gpt-5-mini and default model version to 2025-08-07 across infra + automation.
• Updated docs and quota-check guidance/examples to reference gpt-5-mini.
• Added an explicit empty availabilityZones array to the VMSS/agent pool configuration to avoid zonal placement incompatibilities.

Reviewed changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
infra/main.json	Updates default GPT model/version, quota usageName, and adds availabilityZones: [] in agent pool settings.
infra/main.bicep	Updates default GPT model/version and adds availabilityZones: [] for the primary agent pool.
docs/QuotaCheck.md	Updates quota-check instructions/examples to gpt-5-mini.
docs/CustomizingAzdParameters.md	Updates parameter documentation defaults to gpt-5-mini and 2025-08-07.
docs/AVMPostDeploymentGuide.md	Updates recommended quota table to gpt-5-mini.
Deployment/quota_check_params.sh	Updates default model-capacity pair to gpt-5-mini:150.
Deployment/checkquota.ps1	Updates quota name key to OpenAI.GlobalStandard.gpt-5-mini.
.github/workflows/CI.yml	Updates CI deployment parameters to use gpt-5-mini and version 2025-08-07.

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