docs: updated the deployment Guid.md

[Dhruvkumar-Microsoft]

Purpose

This pull request updates the deployment guide to clarify deployment flavors, improve instructions for building and pushing container images, and reorganize the post-deployment steps for better usability. The most important changes are:

Deployment Flavor Clarification:

• Added explicit documentation of the available deployment flavors (bicep, avm, and avm-waf), including their use cases and how to select them using the DEPLOYMENT_FLAVOR parameter.
• Updated notes to reference the avm-waf deployment flavor for tenants with strict security requirements.

Container Image Build and Push Instructions:

• Introduced a new step (5.1) detailing how to build and push backend, frontend, and MCP Server container images to Azure Container Registry (ACR), including script usage for different shells and handling of ACR public network access in production.

Post-Deployment Steps Reorganization:

• Updated and renamed post-deployment script instructions, consolidating and clarifying the commands to use for uploading team configurations and sample data.
• Reorganized and renumbered post-deployment steps for clarity, including authentication configuration and deployment verification.

Other Improvements:

• Updated the expected deployment completion message to mention the need to build and push container images before uploading team configurations and sample data.

Does this introduce a breaking change?

• Yes
• No

How to Test

• Get the code

git clone [repo-address]
cd [repo-name]
git checkout [branch-name]
npm install

• Test the code

What to Check

Verify that the following are valid

• ...

Other Information