Retrofit for the conventions merged in #4 (issue #3): - OpLog: JSON-lines emitter with the fixed envelope (ts, agent, event, task_id, cause); task_id set by the orchestrator at unit-of-work start - StateStore owns emission: transition, intent begin/commit/abort, and schema migrations each emit their event right after the durable write commits; callers pass the cause - reconcile_on_boot emits boot.reconcile with action and verdicts, and resolves intents with reconciliation-verdict causes - Failed resolutions emit nothing (a line exists iff the write committed) Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>