Clean up

[Arjxm]

This pull request performs a comprehensive rebranding of the project from "AgentGuard" to "AgentARC". It updates all references across documentation, code, configuration, and packaging to reflect the new project name. Additionally, it introduces a new GitHub Actions workflow for building and verifying the package.

Key changes include:

Project Rebranding:

• Renamed all code modules, package directories, and internal references from agentguard to agentarc, including __init__.py, __main__.py, and logger.py. [1] [2] [3]
• Updated all documentation files (README.md, CONTRIBUTING.md, MANIFEST.in) and usage examples to use "AgentARC" instead of "AgentGuard". [1] [2] [3]
• Changed CLI help texts, setup wizards, and integration instructions to reference "AgentARC". [1] [2]

Build & Packaging Updates:

• Added a new GitHub Actions workflow (.github/workflows/build.yml) to build and test the package across multiple Python versions, verify installation, and upload build artifacts.
• Updated packaging configuration to include only the new agentarc package and removed references to the old package name.

Cleanup of Old Artifacts:

• Removed obsolete agentguard.egg-info files and entry points associated with the previous package name. [1] [2] [3]

These changes ensure consistency in naming, improve the developer experience, and set up automated build verification for the newly branded package.