List a job's output assets

Retrieve a paginated list of the assets produced by a specific job, enriched with the per-output node context (node_id, output_key, output_index) correlated from the job's execution outputs by content hash. Unlike GET /api/assets?job_ids={id}, this endpoint is scoped to a single job and carries node-level placement, making it suited to job output views rather than the general asset browser. Returns an empty assets array for jobs that produced no assets.