MCP support for coding agents

Tuist now supports the Model Context Protocol (MCP) over HTTP so coding agents can authenticate and interact with your Tuist data directly.

This first release includes:

• OAuth discovery and dynamic client registration for MCP clients.
• A protected MCP endpoint at /mcp with proper bearer challenges.
• Initial tools for test analysis workflows:
  • list_projects
  • list_test_cases (with optional flaky filter)
  • get_test_case
  • get_test_run
  • get_test_case_run
• An initial prompt (fix_flaky_test) that guides agents through diagnosing and fixing flaky tests.

This gives agents enough context and tooling to inspect flaky tests and drill down into run-level failure details from Tuist.