fix: downmerge from main to dev

[VishalSh-Microsoft]

Purpose

This pull request updates the project to use the latest GPT-5.1 model and introduces a dedicated Azure Container Registry (ACR) for each deployment, along with improvements to documentation and deployment scripts. The most important changes are grouped below:

GPT Model Upgrade and Configuration

• Default GPT model has been changed from gpt-4o to gpt-5.1 throughout infrastructure templates (main.bicep, main_custom.bicep), parameter files, and documentation. The default model version is now 2025-11-13. [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [11]
• Documentation and quota check scripts updated to reference gpt-5.1 as the required/default model, including usage examples and quota recommendations. [1] [2] [3] [4]

Container Registry and Image Build Process

• Dedicated Azure Container Registry is now provisioned per deployment via new module in main.bicep, with private networking support and required DNS configuration. [1] [2] [3]
• Container apps are initially deployed with a public placeholder image; a new documented post-provision step builds and pushes backend/frontend images to the dedicated ACR, then updates the apps. [1] [2] [3] [4]
• Outputs for the ACR endpoint, name, and image tag are exposed for use by deployment scripts.
• Parameters related to a static container registry endpoint have been removed from parameter files, reflecting the new per-deployment registry. [1] [2]

Deployment and Documentation Improvements

• Deployment guide updated to include new build and push image steps, and step numbering adjusted to reflect the new workflow. [1] [2]
• Environment variable documentation clarified for new model defaults and container image handling.

These changes ensure the project uses the latest GPT model, improves security and isolation by providing a dedicated container registry per deployment, and offers clearer deployment instructions.

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.

[Copilot]

Pull request overview

This pull request updates the accelerator’s default GPT model configuration to gpt-5.1 (version 2025-11-13) and changes the container image flow to provision a dedicated Azure Container Registry (ACR) per deployment, with post-provision scripts to build/push images and update Container Apps accordingly.

Changes:

• Upgrade default GPT model references across infra, scripts, samples, and documentation (gpt-4o → gpt-5.1, version → 2025-11-13).
• Introduce per-deployment ACR provisioning (new Bicep module) and switch Container Apps to start from a public placeholder image, then update to ACR images via new build/push scripts.
• Remove static container registry endpoint parameters from infra parameter files and update deployment/quota documentation.

Reviewed changes

Copilot reviewed 16 out of 16 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
src/backend/.env.sample	Updates sample agent model deployment names to gpt-5.1.
scripts/quota_check_params.sh	Updates default quota-check model/capacity to gpt-5.1:150.
scripts/checkquota.sh	Updates quota check model key to OpenAI.GlobalStandard.gpt-5.1.
scripts/build_and_push_images.sh	Adds Bash post-provision script to build/push images to the per-deployment ACR and update Container Apps.
scripts/build_and_push_images.ps1	Adds PowerShell post-provision script to build/push images to the per-deployment ACR and update Container Apps.
infra/modules/containerRegistry.bicep	Adds a reusable module to deploy ACR (+ optional private endpoint + role assignments).
infra/main.waf.parameters.json	Removes the now-obsolete containerRegistryEndpoint parameter.
infra/main.parameters.json	Removes the now-obsolete containerRegistryEndpoint parameter.
infra/main.json	Regenerates ARM JSON reflecting ACR module, placeholder images, and new outputs.
infra/main.bicep	Provisions a dedicated ACR per deployment, configures Container Apps registry identity, uses a placeholder image, and exports ACR/app outputs for scripts.
infra/main_custom.bicep	Updates default GPT model/version in the custom infra template.
docs/quota_check.md	Updates documentation examples to gpt-5.1.
docs/EXAMPLE-CustomizingAzdParameters.md	Updates model customization example to AZURE_ENV_GPT_MODEL_NAME gpt-5.1.
docs/DeploymentGuide.md	Adds a new “Build and Push Container Images” step and adjusts step numbering/duration.
docs/CustomizingAzdParameters.md	Updates default GPT model/version values and removes container registry endpoint parameter documentation.
docs/AzureGPTQuotaSettings.md	Updates quota guidance to reference GPT-5.1.

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[Copilot]

Pull request overview

Copilot reviewed 16 out of 16 changed files in this pull request and generated 2 comments.

[Copilot]

Pull request overview

Copilot reviewed 13 out of 14 changed files in this pull request and generated 2 comments.