feat: Add computer use

[franklinnwren]

Description

Enable computer use feature of massgen. Currently, we only support gemini computer use, claude computer use, and simple browsing, refer to MassGen/massgen/backend/docs/COMPUTER_USE_TOOLS_GUIDE.md for details

Closes MAS-23

Type of change

• Bug fix (fix:) - Non-breaking change which fixes an issue
• New feature (feat:) - Non-breaking change which adds functionality
• Breaking change (breaking:) - Fix or feature that would cause existing functionality to not work as expected
• Documentation (docs:) - Documentation updates
• Code refactoring (refactor:) - Code changes that neither fix a bug nor add a feature
• Tests (test:) - Adding missing tests or correcting existing tests
• Chore (chore:) - Maintenance tasks, dependency updates, etc.
• Performance improvement (perf:) - Code changes that improve performance
• Code style (style:) - Changes that do not affect the meaning of the code (formatting, missing semi-colons, etc.)
• CI/CD (ci:) - Changes to CI/CD configuration files and scripts

Checklist

• I have run pre-commit on my changed files and all checks pass
• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

How to Test

Unit tests in MassGen/massgen/tests/test_computer_use.py

Test CLI Command

massgen --config @gemini_computer_use_example.yaml

Gemini computer use successfully find the number

massgen --config @simple_browser_automation_example.yaml

(Using GPT as default)

GPT successfully find the number

massgen --config @claude_computer_use_example.yaml

Claude computer user failed to find the number, but successfully opened the page and analyzed its failure.

Additional context

TODO: Support OpenAI computer use from Azure