fix: Quota unavailability handling in quotacheck pipeline

[NirajC-Microsoft]

Purpose

This pull request introduces significant improvements to the post-deployment experience and resource management for the Build Your Own Copilot Accelerator. The main changes include the addition of a comprehensive post-deployment guide, enhanced automation and robustness in sample data processing scripts, and updates to resource tagging and output management in the deployment templates.

Documentation Enhancements:

• Added a new AVM Post Deployment Guide (docs/AVMPostDeploymentGuide.md) that provides clear, step-by-step instructions for post-deployment actions, including cloning the repo, importing sample data, configuring authentication, and cleaning up resources after failed deployments.

Sample Data Processing Automation:

• Refactored process_sample_data.sh to automatically fetch resource names and deployment outputs from Azure deployment metadata, reducing manual input and improving reliability. The script now authenticates with Azure CLI if needed and retrieves all necessary variables from deployment outputs or prompts the user only if the deployment does not exist. [1] [2]
• Cleaned up unused script arguments and improved handling of global variables for network access states and SQL public access, streamlining the script and reducing potential errors.

Infrastructure and Resource Tagging:

• Added a DeploymentName tag to resource groups in main.bicep, enabling easier identification and management of deployments.

Output Management:

• Removed the output of the managed identity client ID from main.bicep, likely for security or simplification purposes.

Quota Checking Script Robustness:

• Improved the quota checking script (checkquota.sh) to more reliably flag insufficient quota scenarios, enhancing deployment validation.
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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