docs: Added documentation for Support for Reusing Existing Azure AI Foundry Project

[Bangarraju-Microsoft]

Purpose

This pull request adds documentation to guide users on reusing an existing Azure AI Foundry project during deployment. It includes updates to the deployment guide and a new detailed guide for configuring the environment with an existing project.

Documentation Updates:

• Deployment Guide Enhancements (docs/DeploymentGuide.md):

  • Added a new collapsible section titled "Reusing an Existing Azure AI Foundry Project," linking to a detailed guide for obtaining and setting the project ID.

• New Guide for Reusing Foundry Projects (docs/re-use-foundry-project.md):

  • Introduced a step-by-step guide for configuring an environment with an existing Azure AI Foundry project. This includes instructions for navigating the Azure Portal, locating the project resource ID, and setting it in the environment using the azd CLI.

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 the documentation.

Other Information

[Copilot]

Pull Request Overview

This pull request adds comprehensive documentation for reusing existing Azure AI Foundry projects during deployment. The documentation provides step-by-step instructions to help users configure their environment with an existing project rather than creating a new one.

• Added a new collapsible section in the deployment guide that links to detailed instructions for obtaining project IDs
• Created a comprehensive guide with screenshots and terminal commands for the complete workflow
• Integrated the new documentation seamlessly into the existing deployment process

Reviewed Changes

Copilot reviewed 2 out of 5 changed files in this pull request and generated 5 comments.

File	Description
docs/DeploymentGuide.md	Added collapsible section linking to the new reuse guide
docs/re-use-foundry-project.md	New comprehensive guide with step-by-step instructions for reusing existing Azure AI Foundry projects