Resolve merge conflicts in PR #8 with screenshot caching implementation

[Copilot]

This PR resolves all merge conflicts from PR #8, maintaining the core functionality while ensuring code quality and compatibility with the existing codebase.

Changes Made

Core Functionality

• Added screenshot caching mechanism in _run_impl.py to avoid resending duplicate images
• Implemented hash-based caching to efficiently reference previously sent screenshots
• Added proper image ID handling for consistent reference across requests

Test Coverage

• Added test for screenshot caching functionality in test_computer_action.py
• Ensured tests verify both new image caching and reference handling

Documentation

• Added new agents.md bootstrap guide file for improved onboarding
• Updated external tracing processor list in tracing.md to include all integrations
• Updated Japanese documentation in docs/ja/mcp.md to match the English version

Conflict Resolution Strategy

For each conflict, I carefully chose the approach that:

1. Preserved all functionality from both versions
2. Maintained consistent code style and documentation standards
3. Ensured backward compatibility with existing code
4. Prioritized maintainable, robust code over quick fixes

Testing

The merged code has been confirmed to maintain proper functionality with the screenshot caching system working as intended. All tests pass, showing that the conflict resolution did not break existing behavior.

---

💡 You can make Copilot smarter by setting up custom instructions, customizing its development environment and configuring Model Context Protocol (MCP) servers. Learn more Copilot coding agent tips in the docs.