API overview (draft)

Method	Path	Description
POST	/v1/jobs	Submit an evolution job: agent, evals, layers, budget, rounds
GET	/v1/jobs/{id}	Job status and per-round summary
GET	/v1/jobs/{id}/report	Evolution report: before/after, change diff, PoE link, deployable version
POST	/v1/evals	Upload an eval set and get its hash; content is stored on the anchor in the region you choose
GET	/v1/poe/{tx}	Read an on-chain PoE record
POST	/v1/jobs/{id}/rollback	Roll back to any historical version