JMR-devandClaude Opus 4.8
a24435a4fd
Explains the traffic-control job in ci.yml (priority labels, preemption vs. bounded hold-back, safety invariants, and the known FIFO-runner limitation) for developers new to the repo. Notes that #342 will refactor this logic into a tested Python module, at which point this doc gets updated. Closes #343 Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>