architect-get-agent-ci-green

Use when an agent's test suite is red and needs to be driven to green. Fires on "get CI green", "the test suite is failing", "run the tests and fix them", "triage these test failures", "why is my agent suite red", or after attaching tests when many runs fail at once. Covers running a suite, polling it, classifying failures by cause, and fixing the ones that are test bugs rather than agent bugs.