chore: Dev merge to Main

[Shreyas-Microsoft]

Purpose

This pull request improves the deployment defaults and documentation for jumpbox VM sizing, enhances error troubleshooting guidance, and refactors private endpoint provisioning for AI services to use standalone modules. The changes aim to make deployments more reliable across regions, clarify error messages and resolutions, and align infrastructure code with best practices for Azure networking.

Deployment defaults and documentation improvements:

• Changed the default jumpbox VM size from Standard_DS2_v2 to Standard_D2s_v5 in infra/main.bicep, updated parameter passing in infra/main.waf.parameters.json, and revised documentation to reflect the new default and provide guidance on selecting compatible VM sizes. This ensures better regional availability, performance, and compatibility with accelerated networking and Premium SSD. [1] [2] [3] [4]

Troubleshooting and error documentation enhancements:

• Expanded troubleshooting steps in docs/TroubleShootingSteps.md to include detailed guidance and resolutions for SKU availability errors and accelerated networking requirements, specifically referencing the new default VM size and supported alternatives. [1] [2]

Infrastructure and private endpoint refactoring:

• Refactored private endpoint provisioning for AI Foundry and Cognitive Services accounts in infra/main.bicep to use standalone private-endpoint modules, improving clarity and modularity. The new modules explicitly define private link service connections and DNS zone group configurations, and remove the previous inline array-based approach. [1] [2] [3] [4]

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

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