RunLogStream accepts any RunLike (__run_kind__ + id + to_dict, optional
result/step members): one room grammar run_<kind>_<id>, one batched
persisted run_log/run_status event pair, and a GET
/api/v1/runs/<kind>/<id>/logs?after_id polling twin over the new
run_log_entries table (migration 087). Deploys keep DeploymentJobLog and
dual-emit the legacy deploy_log/deploy_status during the migration
window. The unified Job runtime — which had NO live channel — adopts it
in the consumer (start/succeeded/failed frames; handlers can log via
stream_for(job)). The dead pipeline_* scaffolding was retired in E2.
Gate: emit -> persisted row -> after_id resync contract test; consumer
adoption test. MIGRATION_INVENTORY.md regenerated (census moved).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
