Rewrite Bandit Without Tox

[JennyPng]

#42883

[Copilot]

Pull Request Overview

This PR introduces a new bandit security check tool that runs independently of tox, as part of the ongoing migration from the slower tox-based framework to a faster direct execution approach.

• Adds a new bandit module to perform security vulnerability scanning
• Integrates the bandit check into the main CLI parser and command registration
• Updates documentation to include the new bandit command

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
eng/tools/azure-sdk-tools/azpysdk/main.py	Imports and registers the new bandit module in the CLI
eng/tools/azure-sdk-tools/azpysdk/bandit.py	Implements the complete bandit security check functionality
doc/tool_usage_guide.md	Documents the new bandit command usage

[scbedd]

Inverted condition present.

[scbedd]

I have a feeling we will want the abstraction to run with PATH prepend + VIRTUAL_ENV set. But approving if you are confident in the runs on this guy.