Create a agent expert in Azure

[tcardosoMSFT]

Pull Request Checklist

• [ x] I have read and followed the CONTRIBUTING.md guidelines.
• [ x] My contribution adds a new instruction, prompt, or chat mode file in the correct directory.
• [ x] The file follows the required naming convention.
• [ x] The content is clearly structured and follows the example format.
• [x ] I have tested my instructions, prompt, or chat mode with GitHub Copilot.
• [x ] I have run npm start and verified that README.md is up to date.

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Description

Create a agent sample for custom agent based on Azure expert

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Type of Contribution

• New instruction file.
• New prompt file.
• [ x] new agent file
• New chat mode file.
• New collection file.
• Update to existing instruction, prompt, chat mode, or collection.
• Other (please specify):

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Additional Notes

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By submitting this pull request, I confirm that my contribution abides by the Code of Conduct and will be licensed under the MIT License.

[Copilot]

Pull Request Overview

This PR adds a new Azure Expert agent to provide specialized guidance for Azure cloud development, infrastructure as code, serverless architectures, DevOps practices, and cloud cost optimization.

Key Changes:

• Introduces a comprehensive Azure cloud specialist agent covering core Azure services, infrastructure as code (Bicep/Terraform), DevOps pipelines, security, and cost optimization
• Defines expertise areas including compute, storage, networking, integration, and security services
• Establishes best practices and standards for Azure development and IaC implementation

[aaronpowell]

Please review the Contributing guide and ensure the PR meets the requirements.