feat: Add quota check scripts for Azure OpenAI models and Fabric capacity

[Rafi-Microsoft]

Purpose

This pull request updates the quota check documentation and tooling to provide clearer guidance, improved usability, and expanded support for both Bash and PowerShell environments. The most significant changes are the addition of a comprehensive PowerShell script for quota checking, enhanced documentation for both Bash and PowerShell usage, and improved output formatting for quota results.

Key changes:

New PowerShell Quota Check Script

• Added a new script, quota_check.ps1, which checks Azure OpenAI model quotas and optionally Microsoft Fabric capacity across regions. It supports flexible parameterization for models, regions, and verbosity, and outputs a clear summary table with recommendations.

Documentation Improvements

• Updated docs/quota_check.md to clarify default models, regions, and capacities, and to better align documentation with deployment parameters. The documentation now includes command examples and input formats for both Bash and PowerShell, and describes the new Fabric capacity check option.
• Expanded the usage instructions to cover both Bash and PowerShell workflows, including VS Code and Codespaces environments, with clear step-by-step guidance and references to the relevant input format sections.

Output and Usability Enhancements

• Improved the sample output in the documentation to reflect the new summary table format produced by the updated scripts, making it easier for users to interpret results and select appropriate regions for deployment.
• Added explicit instructions and examples for checking Fabric capacity availability, both in the documentation and in the new PowerShell script. [1] [2]

Does this introduce a breaking change?

• Yes
• No