Add Azure DevOps CLI support for automatic PR creation in README and SPEC

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This pull request updates the documentation to add first-class support for Azure DevOps alongside GitHub, clarifying that the az CLI can be used for automatic pull request creation in Azure DevOps-hosted repositories. It also expands the list of built-in ignore patterns and improves clarity around PR automation for both platforms.

Azure DevOps support and PR automation:

• Added instructions for optionally using the az CLI (with the azure-devops extension) for automatic PR creation in Azure DevOps-hosted repos, similar to the existing gh CLI support for GitHub. Clarified that if the CLI is not available, manual steps are logged. [1] [2]
• Updated all workflow and usage documentation references to indicate that PRs can be auto-created on both GitHub and Azure DevOps, not just GitHub. This includes the main workflow, flags, and example output sections. [1] [2] [3]

Ignore patterns:

• Expanded the built-in ignore patterns to cover more naming conventions for internal and private files, such as internal/*, *_internal.*, *-private.*, *.private.*, *_private.*, and *.secrets.…tic PR creation