EXTENSIONS

Headless agent dispatch as a swamp behavior: filter the bd ready queue into a typed manifest, branch a target checkout and run one agent on a task, sweep every candidate under a single behavior lock, or run a single agent with no git work at all (`run`). Other extensions call `run` through runModel so there is one authority on how a headless agent is launched. Replaces the .kilo/agents ready-queue.sh / run-task.sh / bd-sweep.sh shell cluster.

A pure, deterministic provider/model catalog with tiered fallback and dispatch resolution for agent-dispatch pipelines: a caller-supplied, versioned table maps abstract roles to ordered CLI-agent provider/model tiers, and only throttling signals advance a fallback tier.