feat: Research Assistent | Add support for developer experience

[UtkarshMishra-Microsoft]

Purpose

• ...
  This pull request introduces a new deployment configuration for Azure, enabling local container builds and streamlined deployment automation for the Research Assistant project. The changes include a comprehensive azure_custom.yaml file with custom hooks for environment setup, container building, and deployment, as well as documentation updates to guide users on how to deploy local changes using the new configuration.

Deployment automation and configuration:

• Added a new azure_custom.yaml file that defines custom hooks for pre-package, pre-deploy, post-provision, and post-deploy steps, automating environment variable setup, container image building and pushing, managed identity configuration, and web app updates for both Windows and POSIX shells.
• Updated infrastructure configuration in azure_custom.yaml to use Bicep templates, with parameters for container registry hostname, image name, and image tag, enabling flexible and repeatable deployments.

Documentation improvements:

• Added a section to docs/DeploymentGuide.md explaining how to deploy local changes by renaming configuration and infrastructure files, providing clear instructions for using the custom deployment flow.

These changes make it significantly easier to build, push, and deploy containerized applications to Azure, while also improving the clarity of the deployment process for developers.

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