Bryan Helmkamp c383b6a70b Add the engine flag and record the engine on the run spec ... A workflow version names its engine with `engine = "petri"` in the `[workflow]` table of `workflow.toml`, and `[server.execution] engine` (`FABRO_SERVER_ENGINE`, `--engine`) defaults it for every version that names none. The choice, with what Petri admitted (the lowered root graph and its children by blob and digest), is recorded on the run spec as `RunEngine`, carried on `run.created`, and replayed into the projection. A legacy run's spec omits the field, so existing specs decode unchanged. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>		2026-09-17 20:02:47 -04:00
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src	Add the engine flag and record the engine on the run spec	2026-09-17 20:02:47 -04:00
tests	Carry usage as lithos-llm's Usage and rename billing to usage	2026-09-14 12:31:34 -06:00
Cargo.toml	Run agent stages, Ask Fabro, and fabro exec on pebble's CodingAgent	2026-09-11 14:19:15 -06:00